diff --git "a/lib/common/libvoxelize/voxelize.c" "b/lib/common/libvoxelize/voxelize.c"
--- "a/lib/common/libvoxelize/voxelize.c"
+++ "b/lib/common/libvoxelize/voxelize.c"
@@ -1,4 +1,4 @@
-/* Generated by Cython 0.29.28 */
+/* Generated by Cython 3.0.8 */
 
 /* BEGIN: Cython Metadata
 {
@@ -18,20 +18,37 @@ END: Cython Metadata */
 #ifndef PY_SSIZE_T_CLEAN
 #define PY_SSIZE_T_CLEAN
 #endif /* PY_SSIZE_T_CLEAN */
+#if defined(CYTHON_LIMITED_API) && 0
+  #ifndef Py_LIMITED_API
+    #if CYTHON_LIMITED_API+0 > 0x03030000
+      #define Py_LIMITED_API CYTHON_LIMITED_API
+    #else
+      #define Py_LIMITED_API 0x03030000
+    #endif
+  #endif
+#endif
+
 #include "Python.h"
 #ifndef Py_PYTHON_H
     #error Python headers needed to compile C extensions, please install development version of Python.
-#elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03030000)
-    #error Cython requires Python 2.6+ or Python 3.3+.
+#elif PY_VERSION_HEX < 0x02070000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03030000)
+    #error Cython requires Python 2.7+ or Python 3.3+.
+#else
+#if defined(CYTHON_LIMITED_API) && CYTHON_LIMITED_API
+#define __PYX_EXTRA_ABI_MODULE_NAME "limited"
 #else
-#define CYTHON_ABI "0_29_28"
-#define CYTHON_HEX_VERSION 0x001D1CF0
-#define CYTHON_FUTURE_DIVISION 0
+#define __PYX_EXTRA_ABI_MODULE_NAME ""
+#endif
+#define CYTHON_ABI "3_0_8" __PYX_EXTRA_ABI_MODULE_NAME
+#define __PYX_ABI_MODULE_NAME "_cython_" CYTHON_ABI
+#define __PYX_TYPE_MODULE_PREFIX __PYX_ABI_MODULE_NAME "."
+#define CYTHON_HEX_VERSION 0x030008F0
+#define CYTHON_FUTURE_DIVISION 1
 #include <stddef.h>
 #ifndef offsetof
   #define offsetof(type, member) ( (size_t) & ((type*)0) -> member )
 #endif
-#if !defined(WIN32) && !defined(MS_WINDOWS)
+#if !defined(_WIN32) && !defined(WIN32) && !defined(MS_WINDOWS)
   #ifndef __stdcall
     #define __stdcall
   #endif
@@ -50,9 +67,7 @@ END: Cython Metadata */
 #endif
 #define __PYX_COMMA ,
 #ifndef HAVE_LONG_LONG
-  #if PY_VERSION_HEX >= 0x02070000
-    #define HAVE_LONG_LONG
-  #endif
+  #define HAVE_LONG_LONG
 #endif
 #ifndef PY_LONG_LONG
   #define PY_LONG_LONG LONG_LONG
@@ -60,12 +75,19 @@ END: Cython Metadata */
 #ifndef Py_HUGE_VAL
   #define Py_HUGE_VAL HUGE_VAL
 #endif
-#ifdef PYPY_VERSION
-  #define CYTHON_COMPILING_IN_PYPY 1
-  #define CYTHON_COMPILING_IN_PYSTON 0
+#define __PYX_LIMITED_VERSION_HEX PY_VERSION_HEX
+#if defined(GRAALVM_PYTHON)
+  /* For very preliminary testing purposes. Most variables are set the same as PyPy.
+     The existence of this section does not imply that anything works or is even tested */
+  #define CYTHON_COMPILING_IN_PYPY 0
   #define CYTHON_COMPILING_IN_CPYTHON 0
+  #define CYTHON_COMPILING_IN_LIMITED_API 0
+  #define CYTHON_COMPILING_IN_GRAAL 1
+  #define CYTHON_COMPILING_IN_NOGIL 0
   #undef CYTHON_USE_TYPE_SLOTS
   #define CYTHON_USE_TYPE_SLOTS 0
+  #undef CYTHON_USE_TYPE_SPECS
+  #define CYTHON_USE_TYPE_SPECS 0
   #undef CYTHON_USE_PYTYPE_LOOKUP
   #define CYTHON_USE_PYTYPE_LOOKUP 0
   #if PY_VERSION_HEX < 0x03050000
@@ -90,27 +112,164 @@ END: Cython Metadata */
   #define CYTHON_UNPACK_METHODS 0
   #undef CYTHON_FAST_THREAD_STATE
   #define CYTHON_FAST_THREAD_STATE 0
+  #undef CYTHON_FAST_GIL
+  #define CYTHON_FAST_GIL 0
+  #undef CYTHON_METH_FASTCALL
+  #define CYTHON_METH_FASTCALL 0
   #undef CYTHON_FAST_PYCALL
   #define CYTHON_FAST_PYCALL 0
+  #ifndef CYTHON_PEP487_INIT_SUBCLASS
+    #define CYTHON_PEP487_INIT_SUBCLASS (PY_MAJOR_VERSION >= 3)
+  #endif
   #undef CYTHON_PEP489_MULTI_PHASE_INIT
-  #define CYTHON_PEP489_MULTI_PHASE_INIT 0
+  #define CYTHON_PEP489_MULTI_PHASE_INIT 1
+  #undef CYTHON_USE_MODULE_STATE
+  #define CYTHON_USE_MODULE_STATE 0
   #undef CYTHON_USE_TP_FINALIZE
   #define CYTHON_USE_TP_FINALIZE 0
   #undef CYTHON_USE_DICT_VERSIONS
   #define CYTHON_USE_DICT_VERSIONS 0
   #undef CYTHON_USE_EXC_INFO_STACK
   #define CYTHON_USE_EXC_INFO_STACK 0
-#elif defined(PYSTON_VERSION)
+  #ifndef CYTHON_UPDATE_DESCRIPTOR_DOC
+    #define CYTHON_UPDATE_DESCRIPTOR_DOC 0
+  #endif
+#elif defined(PYPY_VERSION)
+  #define CYTHON_COMPILING_IN_PYPY 1
+  #define CYTHON_COMPILING_IN_CPYTHON 0
+  #define CYTHON_COMPILING_IN_LIMITED_API 0
+  #define CYTHON_COMPILING_IN_GRAAL 0
+  #define CYTHON_COMPILING_IN_NOGIL 0
+  #undef CYTHON_USE_TYPE_SLOTS
+  #define CYTHON_USE_TYPE_SLOTS 0
+  #ifndef CYTHON_USE_TYPE_SPECS
+    #define CYTHON_USE_TYPE_SPECS 0
+  #endif
+  #undef CYTHON_USE_PYTYPE_LOOKUP
+  #define CYTHON_USE_PYTYPE_LOOKUP 0
+  #if PY_VERSION_HEX < 0x03050000
+    #undef CYTHON_USE_ASYNC_SLOTS
+    #define CYTHON_USE_ASYNC_SLOTS 0
+  #elif !defined(CYTHON_USE_ASYNC_SLOTS)
+    #define CYTHON_USE_ASYNC_SLOTS 1
+  #endif
+  #undef CYTHON_USE_PYLIST_INTERNALS
+  #define CYTHON_USE_PYLIST_INTERNALS 0
+  #undef CYTHON_USE_UNICODE_INTERNALS
+  #define CYTHON_USE_UNICODE_INTERNALS 0
+  #undef CYTHON_USE_UNICODE_WRITER
+  #define CYTHON_USE_UNICODE_WRITER 0
+  #undef CYTHON_USE_PYLONG_INTERNALS
+  #define CYTHON_USE_PYLONG_INTERNALS 0
+  #undef CYTHON_AVOID_BORROWED_REFS
+  #define CYTHON_AVOID_BORROWED_REFS 1
+  #undef CYTHON_ASSUME_SAFE_MACROS
+  #define CYTHON_ASSUME_SAFE_MACROS 0
+  #undef CYTHON_UNPACK_METHODS
+  #define CYTHON_UNPACK_METHODS 0
+  #undef CYTHON_FAST_THREAD_STATE
+  #define CYTHON_FAST_THREAD_STATE 0
+  #undef CYTHON_FAST_GIL
+  #define CYTHON_FAST_GIL 0
+  #undef CYTHON_METH_FASTCALL
+  #define CYTHON_METH_FASTCALL 0
+  #undef CYTHON_FAST_PYCALL
+  #define CYTHON_FAST_PYCALL 0
+  #ifndef CYTHON_PEP487_INIT_SUBCLASS
+    #define CYTHON_PEP487_INIT_SUBCLASS (PY_MAJOR_VERSION >= 3)
+  #endif
+  #if PY_VERSION_HEX < 0x03090000
+    #undef CYTHON_PEP489_MULTI_PHASE_INIT
+    #define CYTHON_PEP489_MULTI_PHASE_INIT 0
+  #elif !defined(CYTHON_PEP489_MULTI_PHASE_INIT)
+    #define CYTHON_PEP489_MULTI_PHASE_INIT 1
+  #endif
+  #undef CYTHON_USE_MODULE_STATE
+  #define CYTHON_USE_MODULE_STATE 0
+  #undef CYTHON_USE_TP_FINALIZE
+  #define CYTHON_USE_TP_FINALIZE (PY_VERSION_HEX >= 0x030400a1 && PYPY_VERSION_NUM >= 0x07030C00)
+  #undef CYTHON_USE_DICT_VERSIONS
+  #define CYTHON_USE_DICT_VERSIONS 0
+  #undef CYTHON_USE_EXC_INFO_STACK
+  #define CYTHON_USE_EXC_INFO_STACK 0
+  #ifndef CYTHON_UPDATE_DESCRIPTOR_DOC
+    #define CYTHON_UPDATE_DESCRIPTOR_DOC 0
+  #endif
+#elif defined(CYTHON_LIMITED_API)
+  #ifdef Py_LIMITED_API
+    #undef __PYX_LIMITED_VERSION_HEX
+    #define __PYX_LIMITED_VERSION_HEX Py_LIMITED_API
+  #endif
+  #define CYTHON_COMPILING_IN_PYPY 0
+  #define CYTHON_COMPILING_IN_CPYTHON 0
+  #define CYTHON_COMPILING_IN_LIMITED_API 1
+  #define CYTHON_COMPILING_IN_GRAAL 0
+  #define CYTHON_COMPILING_IN_NOGIL 0
+  #undef CYTHON_CLINE_IN_TRACEBACK
+  #define CYTHON_CLINE_IN_TRACEBACK 0
+  #undef CYTHON_USE_TYPE_SLOTS
+  #define CYTHON_USE_TYPE_SLOTS 0
+  #undef CYTHON_USE_TYPE_SPECS
+  #define CYTHON_USE_TYPE_SPECS 1
+  #undef CYTHON_USE_PYTYPE_LOOKUP
+  #define CYTHON_USE_PYTYPE_LOOKUP 0
+  #undef CYTHON_USE_ASYNC_SLOTS
+  #define CYTHON_USE_ASYNC_SLOTS 0
+  #undef CYTHON_USE_PYLIST_INTERNALS
+  #define CYTHON_USE_PYLIST_INTERNALS 0
+  #undef CYTHON_USE_UNICODE_INTERNALS
+  #define CYTHON_USE_UNICODE_INTERNALS 0
+  #ifndef CYTHON_USE_UNICODE_WRITER
+    #define CYTHON_USE_UNICODE_WRITER 0
+  #endif
+  #undef CYTHON_USE_PYLONG_INTERNALS
+  #define CYTHON_USE_PYLONG_INTERNALS 0
+  #ifndef CYTHON_AVOID_BORROWED_REFS
+    #define CYTHON_AVOID_BORROWED_REFS 0
+  #endif
+  #undef CYTHON_ASSUME_SAFE_MACROS
+  #define CYTHON_ASSUME_SAFE_MACROS 0
+  #undef CYTHON_UNPACK_METHODS
+  #define CYTHON_UNPACK_METHODS 0
+  #undef CYTHON_FAST_THREAD_STATE
+  #define CYTHON_FAST_THREAD_STATE 0
+  #undef CYTHON_FAST_GIL
+  #define CYTHON_FAST_GIL 0
+  #undef CYTHON_METH_FASTCALL
+  #define CYTHON_METH_FASTCALL 0
+  #undef CYTHON_FAST_PYCALL
+  #define CYTHON_FAST_PYCALL 0
+  #ifndef CYTHON_PEP487_INIT_SUBCLASS
+    #define CYTHON_PEP487_INIT_SUBCLASS 1
+  #endif
+  #undef CYTHON_PEP489_MULTI_PHASE_INIT
+  #define CYTHON_PEP489_MULTI_PHASE_INIT 0
+  #undef CYTHON_USE_MODULE_STATE
+  #define CYTHON_USE_MODULE_STATE 1
+  #ifndef CYTHON_USE_TP_FINALIZE
+    #define CYTHON_USE_TP_FINALIZE 0
+  #endif
+  #undef CYTHON_USE_DICT_VERSIONS
+  #define CYTHON_USE_DICT_VERSIONS 0
+  #undef CYTHON_USE_EXC_INFO_STACK
+  #define CYTHON_USE_EXC_INFO_STACK 0
+  #ifndef CYTHON_UPDATE_DESCRIPTOR_DOC
+    #define CYTHON_UPDATE_DESCRIPTOR_DOC 0
+  #endif
+#elif defined(Py_GIL_DISABLED) || defined(Py_NOGIL)
   #define CYTHON_COMPILING_IN_PYPY 0
-  #define CYTHON_COMPILING_IN_PYSTON 1
   #define CYTHON_COMPILING_IN_CPYTHON 0
+  #define CYTHON_COMPILING_IN_LIMITED_API 0
+  #define CYTHON_COMPILING_IN_GRAAL 0
+  #define CYTHON_COMPILING_IN_NOGIL 1
   #ifndef CYTHON_USE_TYPE_SLOTS
     #define CYTHON_USE_TYPE_SLOTS 1
   #endif
   #undef CYTHON_USE_PYTYPE_LOOKUP
   #define CYTHON_USE_PYTYPE_LOOKUP 0
-  #undef CYTHON_USE_ASYNC_SLOTS
-  #define CYTHON_USE_ASYNC_SLOTS 0
+  #ifndef CYTHON_USE_ASYNC_SLOTS
+    #define CYTHON_USE_ASYNC_SLOTS 1
+  #endif
   #undef CYTHON_USE_PYLIST_INTERNALS
   #define CYTHON_USE_PYLIST_INTERNALS 0
   #ifndef CYTHON_USE_UNICODE_INTERNALS
@@ -133,25 +292,29 @@ END: Cython Metadata */
   #define CYTHON_FAST_THREAD_STATE 0
   #undef CYTHON_FAST_PYCALL
   #define CYTHON_FAST_PYCALL 0
-  #undef CYTHON_PEP489_MULTI_PHASE_INIT
-  #define CYTHON_PEP489_MULTI_PHASE_INIT 0
-  #undef CYTHON_USE_TP_FINALIZE
-  #define CYTHON_USE_TP_FINALIZE 0
+  #ifndef CYTHON_PEP489_MULTI_PHASE_INIT
+    #define CYTHON_PEP489_MULTI_PHASE_INIT 1
+  #endif
+  #ifndef CYTHON_USE_TP_FINALIZE
+    #define CYTHON_USE_TP_FINALIZE 1
+  #endif
   #undef CYTHON_USE_DICT_VERSIONS
   #define CYTHON_USE_DICT_VERSIONS 0
   #undef CYTHON_USE_EXC_INFO_STACK
   #define CYTHON_USE_EXC_INFO_STACK 0
 #else
   #define CYTHON_COMPILING_IN_PYPY 0
-  #define CYTHON_COMPILING_IN_PYSTON 0
   #define CYTHON_COMPILING_IN_CPYTHON 1
+  #define CYTHON_COMPILING_IN_LIMITED_API 0
+  #define CYTHON_COMPILING_IN_GRAAL 0
+  #define CYTHON_COMPILING_IN_NOGIL 0
   #ifndef CYTHON_USE_TYPE_SLOTS
     #define CYTHON_USE_TYPE_SLOTS 1
   #endif
-  #if PY_VERSION_HEX < 0x02070000
-    #undef CYTHON_USE_PYTYPE_LOOKUP
-    #define CYTHON_USE_PYTYPE_LOOKUP 0
-  #elif !defined(CYTHON_USE_PYTYPE_LOOKUP)
+  #ifndef CYTHON_USE_TYPE_SPECS
+    #define CYTHON_USE_TYPE_SPECS 0
+  #endif
+  #ifndef CYTHON_USE_PYTYPE_LOOKUP
     #define CYTHON_USE_PYTYPE_LOOKUP 1
   #endif
   #if PY_MAJOR_VERSION < 3
@@ -160,10 +323,7 @@ END: Cython Metadata */
   #elif !defined(CYTHON_USE_ASYNC_SLOTS)
     #define CYTHON_USE_ASYNC_SLOTS 1
   #endif
-  #if PY_VERSION_HEX < 0x02070000
-    #undef CYTHON_USE_PYLONG_INTERNALS
-    #define CYTHON_USE_PYLONG_INTERNALS 0
-  #elif !defined(CYTHON_USE_PYLONG_INTERNALS)
+  #ifndef CYTHON_USE_PYLONG_INTERNALS
     #define CYTHON_USE_PYLONG_INTERNALS 1
   #endif
   #ifndef CYTHON_USE_PYLIST_INTERNALS
@@ -187,34 +347,59 @@ END: Cython Metadata */
   #ifndef CYTHON_UNPACK_METHODS
     #define CYTHON_UNPACK_METHODS 1
   #endif
-  #if PY_VERSION_HEX >= 0x030B00A4
-    #undef CYTHON_FAST_THREAD_STATE
-    #define CYTHON_FAST_THREAD_STATE 0
-  #elif !defined(CYTHON_FAST_THREAD_STATE)
+  #ifndef CYTHON_FAST_THREAD_STATE
     #define CYTHON_FAST_THREAD_STATE 1
   #endif
+  #ifndef CYTHON_FAST_GIL
+    #define CYTHON_FAST_GIL (PY_MAJOR_VERSION < 3 || PY_VERSION_HEX >= 0x03060000 && PY_VERSION_HEX < 0x030C00A6)
+  #endif
+  #ifndef CYTHON_METH_FASTCALL
+    #define CYTHON_METH_FASTCALL (PY_VERSION_HEX >= 0x030700A1)
+  #endif
   #ifndef CYTHON_FAST_PYCALL
-    #define CYTHON_FAST_PYCALL (PY_VERSION_HEX < 0x030B00A1)
+    #define CYTHON_FAST_PYCALL 1
   #endif
-  #ifndef CYTHON_PEP489_MULTI_PHASE_INIT
-    #define CYTHON_PEP489_MULTI_PHASE_INIT (PY_VERSION_HEX >= 0x03050000)
+  #ifndef CYTHON_PEP487_INIT_SUBCLASS
+    #define CYTHON_PEP487_INIT_SUBCLASS 1
   #endif
-  #ifndef CYTHON_USE_TP_FINALIZE
-    #define CYTHON_USE_TP_FINALIZE (PY_VERSION_HEX >= 0x030400a1)
+  #if PY_VERSION_HEX < 0x03050000
+    #undef CYTHON_PEP489_MULTI_PHASE_INIT
+    #define CYTHON_PEP489_MULTI_PHASE_INIT 0
+  #elif !defined(CYTHON_PEP489_MULTI_PHASE_INIT)
+    #define CYTHON_PEP489_MULTI_PHASE_INIT 1
   #endif
-  #ifndef CYTHON_USE_DICT_VERSIONS
-    #define CYTHON_USE_DICT_VERSIONS (PY_VERSION_HEX >= 0x030600B1)
+  #ifndef CYTHON_USE_MODULE_STATE
+    #define CYTHON_USE_MODULE_STATE 0
   #endif
-  #if PY_VERSION_HEX >= 0x030B00A4
+  #if PY_VERSION_HEX < 0x030400a1
+    #undef CYTHON_USE_TP_FINALIZE
+    #define CYTHON_USE_TP_FINALIZE 0
+  #elif !defined(CYTHON_USE_TP_FINALIZE)
+    #define CYTHON_USE_TP_FINALIZE 1
+  #endif
+  #if PY_VERSION_HEX < 0x030600B1
+    #undef CYTHON_USE_DICT_VERSIONS
+    #define CYTHON_USE_DICT_VERSIONS 0
+  #elif !defined(CYTHON_USE_DICT_VERSIONS)
+    #define CYTHON_USE_DICT_VERSIONS  (PY_VERSION_HEX < 0x030C00A5)
+  #endif
+  #if PY_VERSION_HEX < 0x030700A3
     #undef CYTHON_USE_EXC_INFO_STACK
     #define CYTHON_USE_EXC_INFO_STACK 0
   #elif !defined(CYTHON_USE_EXC_INFO_STACK)
-    #define CYTHON_USE_EXC_INFO_STACK (PY_VERSION_HEX >= 0x030700A3)
+    #define CYTHON_USE_EXC_INFO_STACK 1
+  #endif
+  #ifndef CYTHON_UPDATE_DESCRIPTOR_DOC
+    #define CYTHON_UPDATE_DESCRIPTOR_DOC 1
   #endif
 #endif
 #if !defined(CYTHON_FAST_PYCCALL)
 #define CYTHON_FAST_PYCCALL  (CYTHON_FAST_PYCALL && PY_VERSION_HEX >= 0x030600B1)
 #endif
+#if !defined(CYTHON_VECTORCALL)
+#define CYTHON_VECTORCALL  (CYTHON_FAST_PYCCALL && PY_VERSION_HEX >= 0x030800B1)
+#endif
+#define CYTHON_BACKPORT_VECTORCALL (CYTHON_METH_FASTCALL && PY_VERSION_HEX < 0x030800B1)
 #if CYTHON_USE_PYLONG_INTERNALS
   #if PY_MAJOR_VERSION < 3
     #include "longintrepr.h"
@@ -243,6 +428,17 @@ END: Cython Metadata */
     #define CYTHON_RESTRICT
   #endif
 #endif
+#ifndef CYTHON_UNUSED
+  #if defined(__cplusplus)
+    /* for clang __has_cpp_attribute(maybe_unused) is true even before C++17
+     * but leads to warnings with -pedantic, since it is a C++17 feature */
+    #if ((defined(_MSVC_LANG) && _MSVC_LANG >= 201703L) || __cplusplus >= 201703L)
+      #if __has_cpp_attribute(maybe_unused)
+        #define CYTHON_UNUSED [[maybe_unused]]
+      #endif
+    #endif
+  #endif
+#endif
 #ifndef CYTHON_UNUSED
 # if defined(__GNUC__)
 #   if !(defined(__cplusplus)) || (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
@@ -256,13 +452,16 @@ END: Cython Metadata */
 #   define CYTHON_UNUSED
 # endif
 #endif
-#ifndef CYTHON_MAYBE_UNUSED_VAR
+#ifndef CYTHON_UNUSED_VAR
 #  if defined(__cplusplus)
-     template<class T> void CYTHON_MAYBE_UNUSED_VAR( const T& ) { }
+     template<class T> void CYTHON_UNUSED_VAR( const T& ) { }
 #  else
-#    define CYTHON_MAYBE_UNUSED_VAR(x) (void)(x)
+#    define CYTHON_UNUSED_VAR(x) (void)(x)
 #  endif
 #endif
+#ifndef CYTHON_MAYBE_UNUSED_VAR
+  #define CYTHON_MAYBE_UNUSED_VAR(x) CYTHON_UNUSED_VAR(x)
+#endif
 #ifndef CYTHON_NCP_UNUSED
 # if CYTHON_COMPILING_IN_CPYTHON
 #  define CYTHON_NCP_UNUSED
@@ -270,28 +469,59 @@ END: Cython Metadata */
 #  define CYTHON_NCP_UNUSED CYTHON_UNUSED
 # endif
 #endif
+#ifndef CYTHON_USE_CPP_STD_MOVE
+  #if defined(__cplusplus) && (\
+    __cplusplus >= 201103L || (defined(_MSC_VER) && _MSC_VER >= 1600))
+    #define CYTHON_USE_CPP_STD_MOVE 1
+  #else
+    #define CYTHON_USE_CPP_STD_MOVE 0
+  #endif
+#endif
 #define __Pyx_void_to_None(void_result) ((void)(void_result), Py_INCREF(Py_None), Py_None)
 #ifdef _MSC_VER
     #ifndef _MSC_STDINT_H_
         #if _MSC_VER < 1300
-           typedef unsigned char     uint8_t;
-           typedef unsigned int      uint32_t;
+            typedef unsigned char     uint8_t;
+            typedef unsigned short    uint16_t;
+            typedef unsigned int      uint32_t;
+        #else
+            typedef unsigned __int8   uint8_t;
+            typedef unsigned __int16  uint16_t;
+            typedef unsigned __int32  uint32_t;
+        #endif
+    #endif
+    #if _MSC_VER < 1300
+        #ifdef _WIN64
+            typedef unsigned long long  __pyx_uintptr_t;
+        #else
+            typedef unsigned int        __pyx_uintptr_t;
+        #endif
+    #else
+        #ifdef _WIN64
+            typedef unsigned __int64    __pyx_uintptr_t;
         #else
-           typedef unsigned __int8   uint8_t;
-           typedef unsigned __int32  uint32_t;
+            typedef unsigned __int32    __pyx_uintptr_t;
         #endif
     #endif
 #else
-   #include <stdint.h>
+    #include <stdint.h>
+    typedef uintptr_t  __pyx_uintptr_t;
 #endif
 #ifndef CYTHON_FALLTHROUGH
-  #if defined(__cplusplus) && __cplusplus >= 201103L
-    #if __has_cpp_attribute(fallthrough)
-      #define CYTHON_FALLTHROUGH [[fallthrough]]
-    #elif __has_cpp_attribute(clang::fallthrough)
-      #define CYTHON_FALLTHROUGH [[clang::fallthrough]]
-    #elif __has_cpp_attribute(gnu::fallthrough)
-      #define CYTHON_FALLTHROUGH [[gnu::fallthrough]]
+  #if defined(__cplusplus)
+    /* for clang __has_cpp_attribute(fallthrough) is true even before C++17
+     * but leads to warnings with -pedantic, since it is a C++17 feature */
+    #if ((defined(_MSVC_LANG) && _MSVC_LANG >= 201703L) || __cplusplus >= 201703L)
+      #if __has_cpp_attribute(fallthrough)
+        #define CYTHON_FALLTHROUGH [[fallthrough]]
+      #endif
+    #endif
+    #ifndef CYTHON_FALLTHROUGH
+      #if __has_cpp_attribute(clang::fallthrough)
+        #define CYTHON_FALLTHROUGH [[clang::fallthrough]]
+      #elif __has_cpp_attribute(gnu::fallthrough)
+        #define CYTHON_FALLTHROUGH [[gnu::fallthrough]]
+      #endif
     #endif
   #endif
   #ifndef CYTHON_FALLTHROUGH
@@ -301,13 +531,26 @@ END: Cython Metadata */
       #define CYTHON_FALLTHROUGH
     #endif
   #endif
-  #if defined(__clang__ ) && defined(__apple_build_version__)
+  #if defined(__clang__) && defined(__apple_build_version__)
     #if __apple_build_version__ < 7000000
       #undef  CYTHON_FALLTHROUGH
       #define CYTHON_FALLTHROUGH
     #endif
   #endif
 #endif
+#ifdef __cplusplus
+  template <typename T>
+  struct __PYX_IS_UNSIGNED_IMPL {static const bool value = T(0) < T(-1);};
+  #define __PYX_IS_UNSIGNED(type) (__PYX_IS_UNSIGNED_IMPL<type>::value)
+#else
+  #define __PYX_IS_UNSIGNED(type) (((type)-1) > 0)
+#endif
+#if CYTHON_COMPILING_IN_PYPY == 1
+  #define __PYX_NEED_TP_PRINT_SLOT  (PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x030A0000)
+#else
+  #define __PYX_NEED_TP_PRINT_SLOT  (PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000)
+#endif
+#define __PYX_REINTERPRET_FUNCION(func_pointer, other_pointer) ((func_pointer)(void(*)(void))(other_pointer))
 
 #ifndef CYTHON_INLINE
   #if defined(__clang__)
@@ -323,85 +566,145 @@ END: Cython Metadata */
   #endif
 #endif
 
-#if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX < 0x02070600 && !defined(Py_OptimizeFlag)
-  #define Py_OptimizeFlag 0
-#endif
 #define __PYX_BUILD_PY_SSIZE_T "n"
 #define CYTHON_FORMAT_SSIZE_T "z"
 #if PY_MAJOR_VERSION < 3
   #define __Pyx_BUILTIN_MODULE_NAME "__builtin__"
-  #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\
-          PyCode_New(a+k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
   #define __Pyx_DefaultClassType PyClass_Type
+  #define __Pyx_PyCode_New(a, p, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\
+          PyCode_New(a+k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
 #else
   #define __Pyx_BUILTIN_MODULE_NAME "builtins"
   #define __Pyx_DefaultClassType PyType_Type
-#if PY_VERSION_HEX >= 0x030B00A1
-    static CYTHON_INLINE PyCodeObject* __Pyx_PyCode_New(int a, int k, int l, int s, int f,
+#if CYTHON_COMPILING_IN_LIMITED_API
+    static CYTHON_INLINE PyObject* __Pyx_PyCode_New(int a, int p, int k, int l, int s, int f,
                                                     PyObject *code, PyObject *c, PyObject* n, PyObject *v,
                                                     PyObject *fv, PyObject *cell, PyObject* fn,
                                                     PyObject *name, int fline, PyObject *lnos) {
-        PyObject *kwds=NULL, *argcount=NULL, *posonlyargcount=NULL, *kwonlyargcount=NULL;
-        PyObject *nlocals=NULL, *stacksize=NULL, *flags=NULL, *replace=NULL, *call_result=NULL, *empty=NULL;
-        const char *fn_cstr=NULL;
-        const char *name_cstr=NULL;
-        PyCodeObject* co=NULL;
+        PyObject *exception_table = NULL;
+        PyObject *types_module=NULL, *code_type=NULL, *result=NULL;
+        #if __PYX_LIMITED_VERSION_HEX < 0x030B0000
+        PyObject *version_info;
+        PyObject *py_minor_version = NULL;
+        #endif
+        long minor_version = 0;
         PyObject *type, *value, *traceback;
         PyErr_Fetch(&type, &value, &traceback);
-        if (!(kwds=PyDict_New())) goto end;
-        if (!(argcount=PyLong_FromLong(a))) goto end;
-        if (PyDict_SetItemString(kwds, "co_argcount", argcount) != 0) goto end;
-        if (!(posonlyargcount=PyLong_FromLong(0))) goto end;
-        if (PyDict_SetItemString(kwds, "co_posonlyargcount", posonlyargcount) != 0) goto end;
-        if (!(kwonlyargcount=PyLong_FromLong(k))) goto end;
-        if (PyDict_SetItemString(kwds, "co_kwonlyargcount", kwonlyargcount) != 0) goto end;
-        if (!(nlocals=PyLong_FromLong(l))) goto end;
-        if (PyDict_SetItemString(kwds, "co_nlocals", nlocals) != 0) goto end;
-        if (!(stacksize=PyLong_FromLong(s))) goto end;
-        if (PyDict_SetItemString(kwds, "co_stacksize", stacksize) != 0) goto end;
-        if (!(flags=PyLong_FromLong(f))) goto end;
-        if (PyDict_SetItemString(kwds, "co_flags", flags) != 0) goto end;
-        if (PyDict_SetItemString(kwds, "co_code", code) != 0) goto end;
-        if (PyDict_SetItemString(kwds, "co_consts", c) != 0) goto end;
-        if (PyDict_SetItemString(kwds, "co_names", n) != 0) goto end;
-        if (PyDict_SetItemString(kwds, "co_varnames", v) != 0) goto end;
-        if (PyDict_SetItemString(kwds, "co_freevars", fv) != 0) goto end;
-        if (PyDict_SetItemString(kwds, "co_cellvars", cell) != 0) goto end;
-        if (PyDict_SetItemString(kwds, "co_linetable", lnos) != 0) goto end;
-        if (!(fn_cstr=PyUnicode_AsUTF8AndSize(fn, NULL))) goto end;
-        if (!(name_cstr=PyUnicode_AsUTF8AndSize(name, NULL))) goto end;
-        if (!(co = PyCode_NewEmpty(fn_cstr, name_cstr, fline))) goto end;
-        if (!(replace = PyObject_GetAttrString((PyObject*)co, "replace"))) goto cleanup_code_too;
-        if (!(empty = PyTuple_New(0))) goto cleanup_code_too; // unfortunately __pyx_empty_tuple isn't available here
-        if (!(call_result = PyObject_Call(replace, empty, kwds))) goto cleanup_code_too;
-        Py_XDECREF((PyObject*)co);
-        co = (PyCodeObject*)call_result;
-        call_result = NULL;
-        if (0) {
-            cleanup_code_too:
-            Py_XDECREF((PyObject*)co);
-            co = NULL;
+        #if __PYX_LIMITED_VERSION_HEX >= 0x030B0000
+        minor_version = 11;
+        #else
+        if (!(version_info = PySys_GetObject("version_info"))) goto end;
+        if (!(py_minor_version = PySequence_GetItem(version_info, 1))) goto end;
+        minor_version = PyLong_AsLong(py_minor_version);
+        Py_DECREF(py_minor_version);
+        if (minor_version == -1 && PyErr_Occurred()) goto end;
+        #endif
+        if (!(types_module = PyImport_ImportModule("types"))) goto end;
+        if (!(code_type = PyObject_GetAttrString(types_module, "CodeType"))) goto end;
+        if (minor_version <= 7) {
+            (void)p;
+            result = PyObject_CallFunction(code_type, "iiiiiOOOOOOiOO", a, k, l, s, f, code,
+                          c, n, v, fn, name, fline, lnos, fv, cell);
+        } else if (minor_version <= 10) {
+            result = PyObject_CallFunction(code_type, "iiiiiiOOOOOOiOO", a,p, k, l, s, f, code,
+                          c, n, v, fn, name, fline, lnos, fv, cell);
+        } else {
+            if (!(exception_table = PyBytes_FromStringAndSize(NULL, 0))) goto end;
+            result = PyObject_CallFunction(code_type, "iiiiiiOOOOOOOiOO", a,p, k, l, s, f, code,
+                          c, n, v, fn, name, name, fline, lnos, exception_table, fv, cell);
         }
-        end:
-        Py_XDECREF(kwds);
-        Py_XDECREF(argcount);
-        Py_XDECREF(posonlyargcount);
-        Py_XDECREF(kwonlyargcount);
-        Py_XDECREF(nlocals);
-        Py_XDECREF(stacksize);
-        Py_XDECREF(replace);
-        Py_XDECREF(call_result);
-        Py_XDECREF(empty);
+    end:
+        Py_XDECREF(code_type);
+        Py_XDECREF(exception_table);
+        Py_XDECREF(types_module);
         if (type) {
             PyErr_Restore(type, value, traceback);
         }
-        return co;
+        return result;
     }
+    #ifndef CO_OPTIMIZED
+    #define CO_OPTIMIZED 0x0001
+    #endif
+    #ifndef CO_NEWLOCALS
+    #define CO_NEWLOCALS 0x0002
+    #endif
+    #ifndef CO_VARARGS
+    #define CO_VARARGS 0x0004
+    #endif
+    #ifndef CO_VARKEYWORDS
+    #define CO_VARKEYWORDS 0x0008
+    #endif
+    #ifndef CO_ASYNC_GENERATOR
+    #define CO_ASYNC_GENERATOR 0x0200
+    #endif
+    #ifndef CO_GENERATOR
+    #define CO_GENERATOR 0x0020
+    #endif
+    #ifndef CO_COROUTINE
+    #define CO_COROUTINE 0x0080
+    #endif
+#elif PY_VERSION_HEX >= 0x030B0000
+  static CYTHON_INLINE PyCodeObject* __Pyx_PyCode_New(int a, int p, int k, int l, int s, int f,
+                                                    PyObject *code, PyObject *c, PyObject* n, PyObject *v,
+                                                    PyObject *fv, PyObject *cell, PyObject* fn,
+                                                    PyObject *name, int fline, PyObject *lnos) {
+    PyCodeObject *result;
+    PyObject *empty_bytes = PyBytes_FromStringAndSize("", 0);
+    if (!empty_bytes) return NULL;
+    result =
+      #if PY_VERSION_HEX >= 0x030C0000
+        PyUnstable_Code_NewWithPosOnlyArgs
+      #else
+        PyCode_NewWithPosOnlyArgs
+      #endif
+        (a, p, k, l, s, f, code, c, n, v, fv, cell, fn, name, name, fline, lnos, empty_bytes);
+    Py_DECREF(empty_bytes);
+    return result;
+  }
+#elif PY_VERSION_HEX >= 0x030800B2 && !CYTHON_COMPILING_IN_PYPY
+  #define __Pyx_PyCode_New(a, p, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\
+          PyCode_NewWithPosOnlyArgs(a, p, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
 #else
-  #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\
+  #define __Pyx_PyCode_New(a, p, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\
           PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
 #endif
-  #define __Pyx_DefaultClassType PyType_Type
+#endif
+#if PY_VERSION_HEX >= 0x030900A4 || defined(Py_IS_TYPE)
+  #define __Pyx_IS_TYPE(ob, type) Py_IS_TYPE(ob, type)
+#else
+  #define __Pyx_IS_TYPE(ob, type) (((const PyObject*)ob)->ob_type == (type))
+#endif
+#if PY_VERSION_HEX >= 0x030A00B1 || defined(Py_Is)
+  #define __Pyx_Py_Is(x, y)  Py_Is(x, y)
+#else
+  #define __Pyx_Py_Is(x, y) ((x) == (y))
+#endif
+#if PY_VERSION_HEX >= 0x030A00B1 || defined(Py_IsNone)
+  #define __Pyx_Py_IsNone(ob) Py_IsNone(ob)
+#else
+  #define __Pyx_Py_IsNone(ob) __Pyx_Py_Is((ob), Py_None)
+#endif
+#if PY_VERSION_HEX >= 0x030A00B1 || defined(Py_IsTrue)
+  #define __Pyx_Py_IsTrue(ob) Py_IsTrue(ob)
+#else
+  #define __Pyx_Py_IsTrue(ob) __Pyx_Py_Is((ob), Py_True)
+#endif
+#if PY_VERSION_HEX >= 0x030A00B1 || defined(Py_IsFalse)
+  #define __Pyx_Py_IsFalse(ob) Py_IsFalse(ob)
+#else
+  #define __Pyx_Py_IsFalse(ob) __Pyx_Py_Is((ob), Py_False)
+#endif
+#define __Pyx_NoneAsNull(obj)  (__Pyx_Py_IsNone(obj) ? NULL : (obj))
+#if PY_VERSION_HEX >= 0x030900F0 && !CYTHON_COMPILING_IN_PYPY
+  #define __Pyx_PyObject_GC_IsFinalized(o) PyObject_GC_IsFinalized(o)
+#else
+  #define __Pyx_PyObject_GC_IsFinalized(o) _PyGC_FINALIZED(o)
+#endif
+#ifndef CO_COROUTINE
+  #define CO_COROUTINE 0x80
+#endif
+#ifndef CO_ASYNC_GENERATOR
+  #define CO_ASYNC_GENERATOR 0x200
 #endif
 #ifndef Py_TPFLAGS_CHECKTYPES
   #define Py_TPFLAGS_CHECKTYPES 0
@@ -415,6 +718,12 @@ END: Cython Metadata */
 #ifndef Py_TPFLAGS_HAVE_FINALIZE
   #define Py_TPFLAGS_HAVE_FINALIZE 0
 #endif
+#ifndef Py_TPFLAGS_SEQUENCE
+  #define Py_TPFLAGS_SEQUENCE 0
+#endif
+#ifndef Py_TPFLAGS_MAPPING
+  #define Py_TPFLAGS_MAPPING 0
+#endif
 #ifndef METH_STACKLESS
   #define METH_STACKLESS 0
 #endif
@@ -429,31 +738,81 @@ END: Cython Metadata */
   #define __Pyx_PyCFunctionFast _PyCFunctionFast
   #define __Pyx_PyCFunctionFastWithKeywords _PyCFunctionFastWithKeywords
 #endif
-#if CYTHON_FAST_PYCCALL
-#define __Pyx_PyFastCFunction_Check(func)\
-    ((PyCFunction_Check(func) && (METH_FASTCALL == (PyCFunction_GET_FLAGS(func) & ~(METH_CLASS | METH_STATIC | METH_COEXIST | METH_KEYWORDS | METH_STACKLESS)))))
+#if CYTHON_METH_FASTCALL
+  #define __Pyx_METH_FASTCALL METH_FASTCALL
+  #define __Pyx_PyCFunction_FastCall __Pyx_PyCFunctionFast
+  #define __Pyx_PyCFunction_FastCallWithKeywords __Pyx_PyCFunctionFastWithKeywords
+#else
+  #define __Pyx_METH_FASTCALL METH_VARARGS
+  #define __Pyx_PyCFunction_FastCall PyCFunction
+  #define __Pyx_PyCFunction_FastCallWithKeywords PyCFunctionWithKeywords
+#endif
+#if CYTHON_VECTORCALL
+  #define __pyx_vectorcallfunc vectorcallfunc
+  #define __Pyx_PY_VECTORCALL_ARGUMENTS_OFFSET  PY_VECTORCALL_ARGUMENTS_OFFSET
+  #define __Pyx_PyVectorcall_NARGS(n)  PyVectorcall_NARGS((size_t)(n))
+#elif CYTHON_BACKPORT_VECTORCALL
+  typedef PyObject *(*__pyx_vectorcallfunc)(PyObject *callable, PyObject *const *args,
+                                            size_t nargsf, PyObject *kwnames);
+  #define __Pyx_PY_VECTORCALL_ARGUMENTS_OFFSET  ((size_t)1 << (8 * sizeof(size_t) - 1))
+  #define __Pyx_PyVectorcall_NARGS(n)  ((Py_ssize_t)(((size_t)(n)) & ~__Pyx_PY_VECTORCALL_ARGUMENTS_OFFSET))
+#else
+  #define __Pyx_PY_VECTORCALL_ARGUMENTS_OFFSET  0
+  #define __Pyx_PyVectorcall_NARGS(n)  ((Py_ssize_t)(n))
+#endif
+#if PY_MAJOR_VERSION >= 0x030900B1
+#define __Pyx_PyCFunction_CheckExact(func)  PyCFunction_CheckExact(func)
+#else
+#define __Pyx_PyCFunction_CheckExact(func)  PyCFunction_Check(func)
+#endif
+#define __Pyx_CyOrPyCFunction_Check(func)  PyCFunction_Check(func)
+#if CYTHON_COMPILING_IN_CPYTHON
+#define __Pyx_CyOrPyCFunction_GET_FUNCTION(func)  (((PyCFunctionObject*)(func))->m_ml->ml_meth)
+#elif !CYTHON_COMPILING_IN_LIMITED_API
+#define __Pyx_CyOrPyCFunction_GET_FUNCTION(func)  PyCFunction_GET_FUNCTION(func)
+#endif
+#if CYTHON_COMPILING_IN_CPYTHON
+#define __Pyx_CyOrPyCFunction_GET_FLAGS(func)  (((PyCFunctionObject*)(func))->m_ml->ml_flags)
+static CYTHON_INLINE PyObject* __Pyx_CyOrPyCFunction_GET_SELF(PyObject *func) {
+    return (__Pyx_CyOrPyCFunction_GET_FLAGS(func) & METH_STATIC) ? NULL : ((PyCFunctionObject*)func)->m_self;
+}
+#endif
+static CYTHON_INLINE int __Pyx__IsSameCFunction(PyObject *func, void *cfunc) {
+#if CYTHON_COMPILING_IN_LIMITED_API
+    return PyCFunction_Check(func) && PyCFunction_GetFunction(func) == (PyCFunction) cfunc;
 #else
-#define __Pyx_PyFastCFunction_Check(func) 0
+    return PyCFunction_Check(func) && PyCFunction_GET_FUNCTION(func) == (PyCFunction) cfunc;
+#endif
+}
+#define __Pyx_IsSameCFunction(func, cfunc)   __Pyx__IsSameCFunction(func, cfunc)
+#if __PYX_LIMITED_VERSION_HEX < 0x030900B1
+  #define __Pyx_PyType_FromModuleAndSpec(m, s, b)  ((void)m, PyType_FromSpecWithBases(s, b))
+  typedef PyObject *(*__Pyx_PyCMethod)(PyObject *, PyTypeObject *, PyObject *const *, size_t, PyObject *);
+#else
+  #define __Pyx_PyType_FromModuleAndSpec(m, s, b)  PyType_FromModuleAndSpec(m, s, b)
+  #define __Pyx_PyCMethod  PyCMethod
+#endif
+#ifndef METH_METHOD
+  #define METH_METHOD 0x200
 #endif
 #if CYTHON_COMPILING_IN_PYPY && !defined(PyObject_Malloc)
   #define PyObject_Malloc(s)   PyMem_Malloc(s)
   #define PyObject_Free(p)     PyMem_Free(p)
   #define PyObject_Realloc(p)  PyMem_Realloc(p)
 #endif
-#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX < 0x030400A1
-  #define PyMem_RawMalloc(n)           PyMem_Malloc(n)
-  #define PyMem_RawRealloc(p, n)       PyMem_Realloc(p, n)
-  #define PyMem_RawFree(p)             PyMem_Free(p)
-#endif
-#if CYTHON_COMPILING_IN_PYSTON
-  #define __Pyx_PyCode_HasFreeVars(co)  PyCode_HasFreeVars(co)
-  #define __Pyx_PyFrame_SetLineNumber(frame, lineno) PyFrame_SetLineNumber(frame, lineno)
+#if CYTHON_COMPILING_IN_LIMITED_API
+  #define __Pyx_PyCode_HasFreeVars(co)  (PyCode_GetNumFree(co) > 0)
+  #define __Pyx_PyFrame_SetLineNumber(frame, lineno)
 #else
   #define __Pyx_PyCode_HasFreeVars(co)  (PyCode_GetNumFree(co) > 0)
   #define __Pyx_PyFrame_SetLineNumber(frame, lineno)  (frame)->f_lineno = (lineno)
 #endif
-#if !CYTHON_FAST_THREAD_STATE || PY_VERSION_HEX < 0x02070000
+#if CYTHON_COMPILING_IN_LIMITED_API
+  #define __Pyx_PyThreadState_Current PyThreadState_Get()
+#elif !CYTHON_FAST_THREAD_STATE
   #define __Pyx_PyThreadState_Current PyThreadState_GET()
+#elif PY_VERSION_HEX >= 0x030d00A1
+  #define __Pyx_PyThreadState_Current PyThreadState_GetUnchecked()
 #elif PY_VERSION_HEX >= 0x03060000
   #define __Pyx_PyThreadState_Current _PyThreadState_UncheckedGet()
 #elif PY_VERSION_HEX >= 0x03000000
@@ -461,6 +820,22 @@ END: Cython Metadata */
 #else
   #define __Pyx_PyThreadState_Current _PyThreadState_Current
 #endif
+#if CYTHON_COMPILING_IN_LIMITED_API
+static CYTHON_INLINE void *__Pyx_PyModule_GetState(PyObject *op)
+{
+    void *result;
+    result = PyModule_GetState(op);
+    if (!result)
+        Py_FatalError("Couldn't find the module state");
+    return result;
+}
+#endif
+#define __Pyx_PyObject_GetSlot(obj, name, func_ctype)  __Pyx_PyType_GetSlot(Py_TYPE(obj), name, func_ctype)
+#if CYTHON_COMPILING_IN_LIMITED_API
+  #define __Pyx_PyType_GetSlot(type, name, func_ctype)  ((func_ctype) PyType_GetSlot((type), Py_##name))
+#else
+  #define __Pyx_PyType_GetSlot(type, name, func_ctype)  ((type)->name)
+#endif
 #if PY_VERSION_HEX < 0x030700A2 && !defined(PyThread_tss_create) && !defined(Py_tss_NEEDS_INIT)
 #include "pythread.h"
 #define Py_tss_NEEDS_INIT 0
@@ -491,7 +866,29 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   return PyThread_get_key_value(*key);
 }
 #endif
-#if CYTHON_COMPILING_IN_CPYTHON || defined(_PyDict_NewPresized)
+#if PY_MAJOR_VERSION < 3
+    #if CYTHON_COMPILING_IN_PYPY
+        #if PYPY_VERSION_NUM < 0x07030600
+            #if defined(__cplusplus) && __cplusplus >= 201402L
+                [[deprecated("`with nogil:` inside a nogil function will not release the GIL in PyPy2 < 7.3.6")]]
+            #elif defined(__GNUC__) || defined(__clang__)
+                __attribute__ ((__deprecated__("`with nogil:` inside a nogil function will not release the GIL in PyPy2 < 7.3.6")))
+            #elif defined(_MSC_VER)
+                __declspec(deprecated("`with nogil:` inside a nogil function will not release the GIL in PyPy2 < 7.3.6"))
+            #endif
+            static CYTHON_INLINE int PyGILState_Check(void) {
+                return 0;
+            }
+        #else  // PYPY_VERSION_NUM < 0x07030600
+        #endif  // PYPY_VERSION_NUM < 0x07030600
+    #else
+        static CYTHON_INLINE int PyGILState_Check(void) {
+            PyThreadState * tstate = _PyThreadState_Current;
+            return tstate && (tstate == PyGILState_GetThisThreadState());
+        }
+    #endif
+#endif
+#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX < 0x030d0000 || defined(_PyDict_NewPresized)
 #define __Pyx_PyDict_NewPresized(n)  ((n <= 8) ? PyDict_New() : _PyDict_NewPresized(n))
 #else
 #define __Pyx_PyDict_NewPresized(n)  PyDict_New()
@@ -503,34 +900,91 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define __Pyx_PyNumber_Divide(x,y)         PyNumber_Divide(x,y)
   #define __Pyx_PyNumber_InPlaceDivide(x,y)  PyNumber_InPlaceDivide(x,y)
 #endif
-#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030500A1 && CYTHON_USE_UNICODE_INTERNALS
-#define __Pyx_PyDict_GetItemStr(dict, name)  _PyDict_GetItem_KnownHash(dict, name, ((PyASCIIObject *) name)->hash)
+#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX > 0x030600B4 && PY_VERSION_HEX < 0x030d0000 && CYTHON_USE_UNICODE_INTERNALS
+#define __Pyx_PyDict_GetItemStrWithError(dict, name)  _PyDict_GetItem_KnownHash(dict, name, ((PyASCIIObject *) name)->hash)
+static CYTHON_INLINE PyObject * __Pyx_PyDict_GetItemStr(PyObject *dict, PyObject *name) {
+    PyObject *res = __Pyx_PyDict_GetItemStrWithError(dict, name);
+    if (res == NULL) PyErr_Clear();
+    return res;
+}
+#elif PY_MAJOR_VERSION >= 3 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07020000)
+#define __Pyx_PyDict_GetItemStrWithError  PyDict_GetItemWithError
+#define __Pyx_PyDict_GetItemStr           PyDict_GetItem
+#else
+static CYTHON_INLINE PyObject * __Pyx_PyDict_GetItemStrWithError(PyObject *dict, PyObject *name) {
+#if CYTHON_COMPILING_IN_PYPY
+    return PyDict_GetItem(dict, name);
+#else
+    PyDictEntry *ep;
+    PyDictObject *mp = (PyDictObject*) dict;
+    long hash = ((PyStringObject *) name)->ob_shash;
+    assert(hash != -1);
+    ep = (mp->ma_lookup)(mp, name, hash);
+    if (ep == NULL) {
+        return NULL;
+    }
+    return ep->me_value;
+#endif
+}
+#define __Pyx_PyDict_GetItemStr           PyDict_GetItem
+#endif
+#if CYTHON_USE_TYPE_SLOTS
+  #define __Pyx_PyType_GetFlags(tp)   (((PyTypeObject *)tp)->tp_flags)
+  #define __Pyx_PyType_HasFeature(type, feature)  ((__Pyx_PyType_GetFlags(type) & (feature)) != 0)
+  #define __Pyx_PyObject_GetIterNextFunc(obj)  (Py_TYPE(obj)->tp_iternext)
+#else
+  #define __Pyx_PyType_GetFlags(tp)   (PyType_GetFlags((PyTypeObject *)tp))
+  #define __Pyx_PyType_HasFeature(type, feature)  PyType_HasFeature(type, feature)
+  #define __Pyx_PyObject_GetIterNextFunc(obj)  PyIter_Next
+#endif
+#if CYTHON_COMPILING_IN_LIMITED_API
+  #define __Pyx_SetItemOnTypeDict(tp, k, v) PyObject_GenericSetAttr((PyObject*)tp, k, v)
+#else
+  #define __Pyx_SetItemOnTypeDict(tp, k, v) PyDict_SetItem(tp->tp_dict, k, v)
+#endif
+#if CYTHON_USE_TYPE_SPECS && PY_VERSION_HEX >= 0x03080000
+#define __Pyx_PyHeapTypeObject_GC_Del(obj)  {\
+    PyTypeObject *type = Py_TYPE((PyObject*)obj);\
+    assert(__Pyx_PyType_HasFeature(type, Py_TPFLAGS_HEAPTYPE));\
+    PyObject_GC_Del(obj);\
+    Py_DECREF(type);\
+}
 #else
-#define __Pyx_PyDict_GetItemStr(dict, name)  PyDict_GetItem(dict, name)
+#define __Pyx_PyHeapTypeObject_GC_Del(obj)  PyObject_GC_Del(obj)
 #endif
-#if PY_VERSION_HEX > 0x03030000 && defined(PyUnicode_KIND)
+#if CYTHON_COMPILING_IN_LIMITED_API
   #define CYTHON_PEP393_ENABLED 1
-  #if defined(PyUnicode_IS_READY)
-  #define __Pyx_PyUnicode_READY(op)       (likely(PyUnicode_IS_READY(op)) ?\
-                                              0 : _PyUnicode_Ready((PyObject *)(op)))
-  #else
   #define __Pyx_PyUnicode_READY(op)       (0)
+  #define __Pyx_PyUnicode_GET_LENGTH(u)   PyUnicode_GetLength(u)
+  #define __Pyx_PyUnicode_READ_CHAR(u, i) PyUnicode_ReadChar(u, i)
+  #define __Pyx_PyUnicode_MAX_CHAR_VALUE(u)   ((void)u, 1114111U)
+  #define __Pyx_PyUnicode_KIND(u)         ((void)u, (0))
+  #define __Pyx_PyUnicode_DATA(u)         ((void*)u)
+  #define __Pyx_PyUnicode_READ(k, d, i)   ((void)k, PyUnicode_ReadChar((PyObject*)(d), i))
+  #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != PyUnicode_GetLength(u))
+#elif PY_VERSION_HEX > 0x03030000 && defined(PyUnicode_KIND)
+  #define CYTHON_PEP393_ENABLED 1
+  #if PY_VERSION_HEX >= 0x030C0000
+    #define __Pyx_PyUnicode_READY(op)       (0)
+  #else
+    #define __Pyx_PyUnicode_READY(op)       (likely(PyUnicode_IS_READY(op)) ?\
+                                                0 : _PyUnicode_Ready((PyObject *)(op)))
   #endif
   #define __Pyx_PyUnicode_GET_LENGTH(u)   PyUnicode_GET_LENGTH(u)
   #define __Pyx_PyUnicode_READ_CHAR(u, i) PyUnicode_READ_CHAR(u, i)
   #define __Pyx_PyUnicode_MAX_CHAR_VALUE(u)   PyUnicode_MAX_CHAR_VALUE(u)
-  #define __Pyx_PyUnicode_KIND(u)         PyUnicode_KIND(u)
+  #define __Pyx_PyUnicode_KIND(u)         ((int)PyUnicode_KIND(u))
   #define __Pyx_PyUnicode_DATA(u)         PyUnicode_DATA(u)
   #define __Pyx_PyUnicode_READ(k, d, i)   PyUnicode_READ(k, d, i)
-  #define __Pyx_PyUnicode_WRITE(k, d, i, ch)  PyUnicode_WRITE(k, d, i, ch)
-  #if defined(PyUnicode_IS_READY) && defined(PyUnicode_GET_SIZE)
-  #if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x03090000
-  #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != (likely(PyUnicode_IS_READY(u)) ? PyUnicode_GET_LENGTH(u) : ((PyCompactUnicodeObject *)(u))->wstr_length))
-  #else
-  #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != (likely(PyUnicode_IS_READY(u)) ? PyUnicode_GET_LENGTH(u) : PyUnicode_GET_SIZE(u)))
-  #endif
+  #define __Pyx_PyUnicode_WRITE(k, d, i, ch)  PyUnicode_WRITE(k, d, i, (Py_UCS4) ch)
+  #if PY_VERSION_HEX >= 0x030C0000
+    #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != PyUnicode_GET_LENGTH(u))
   #else
-  #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != PyUnicode_GET_LENGTH(u))
+    #if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x03090000
+    #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != (likely(PyUnicode_IS_READY(u)) ? PyUnicode_GET_LENGTH(u) : ((PyCompactUnicodeObject *)(u))->wstr_length))
+    #else
+    #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != (likely(PyUnicode_IS_READY(u)) ? PyUnicode_GET_LENGTH(u) : PyUnicode_GET_SIZE(u)))
+    #endif
   #endif
 #else
   #define CYTHON_PEP393_ENABLED 0
@@ -540,11 +994,11 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define __Pyx_PyUnicode_READY(op)       (0)
   #define __Pyx_PyUnicode_GET_LENGTH(u)   PyUnicode_GET_SIZE(u)
   #define __Pyx_PyUnicode_READ_CHAR(u, i) ((Py_UCS4)(PyUnicode_AS_UNICODE(u)[i]))
-  #define __Pyx_PyUnicode_MAX_CHAR_VALUE(u)   ((sizeof(Py_UNICODE) == 2) ? 65535 : 1114111)
-  #define __Pyx_PyUnicode_KIND(u)         (sizeof(Py_UNICODE))
+  #define __Pyx_PyUnicode_MAX_CHAR_VALUE(u)   ((sizeof(Py_UNICODE) == 2) ? 65535U : 1114111U)
+  #define __Pyx_PyUnicode_KIND(u)         ((int)sizeof(Py_UNICODE))
   #define __Pyx_PyUnicode_DATA(u)         ((void*)PyUnicode_AS_UNICODE(u))
   #define __Pyx_PyUnicode_READ(k, d, i)   ((void)(k), (Py_UCS4)(((Py_UNICODE*)d)[i]))
-  #define __Pyx_PyUnicode_WRITE(k, d, i, ch)  (((void)(k)), ((Py_UNICODE*)d)[i] = ch)
+  #define __Pyx_PyUnicode_WRITE(k, d, i, ch)  (((void)(k)), ((Py_UNICODE*)d)[i] = (Py_UNICODE) ch)
   #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != PyUnicode_GET_SIZE(u))
 #endif
 #if CYTHON_COMPILING_IN_PYPY
@@ -555,14 +1009,20 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define __Pyx_PyUnicode_ConcatSafe(a, b)  ((unlikely((a) == Py_None) || unlikely((b) == Py_None)) ?\
       PyNumber_Add(a, b) : __Pyx_PyUnicode_Concat(a, b))
 #endif
-#if CYTHON_COMPILING_IN_PYPY && !defined(PyUnicode_Contains)
-  #define PyUnicode_Contains(u, s)  PySequence_Contains(u, s)
-#endif
-#if CYTHON_COMPILING_IN_PYPY && !defined(PyByteArray_Check)
-  #define PyByteArray_Check(obj)  PyObject_TypeCheck(obj, &PyByteArray_Type)
-#endif
-#if CYTHON_COMPILING_IN_PYPY && !defined(PyObject_Format)
-  #define PyObject_Format(obj, fmt)  PyObject_CallMethod(obj, "__format__", "O", fmt)
+#if CYTHON_COMPILING_IN_PYPY
+  #if !defined(PyUnicode_DecodeUnicodeEscape)
+    #define PyUnicode_DecodeUnicodeEscape(s, size, errors)  PyUnicode_Decode(s, size, "unicode_escape", errors)
+  #endif
+  #if !defined(PyUnicode_Contains) || (PY_MAJOR_VERSION == 2 && PYPY_VERSION_NUM < 0x07030500)
+    #undef PyUnicode_Contains
+    #define PyUnicode_Contains(u, s)  PySequence_Contains(u, s)
+  #endif
+  #if !defined(PyByteArray_Check)
+    #define PyByteArray_Check(obj)  PyObject_TypeCheck(obj, &PyByteArray_Type)
+  #endif
+  #if !defined(PyObject_Format)
+    #define PyObject_Format(obj, fmt)  PyObject_CallMethod(obj, "__format__", "O", fmt)
+  #endif
 #endif
 #define __Pyx_PyString_FormatSafe(a, b)   ((unlikely((a) == Py_None || (PyString_Check(b) && !PyString_CheckExact(b)))) ? PyNumber_Remainder(a, b) : __Pyx_PyString_Format(a, b))
 #define __Pyx_PyUnicode_FormatSafe(a, b)  ((unlikely((a) == Py_None || (PyUnicode_Check(b) && !PyUnicode_CheckExact(b)))) ? PyNumber_Remainder(a, b) : PyUnicode_Format(a, b))
@@ -591,8 +1051,14 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define __Pyx_PyBaseString_Check(obj) (PyString_Check(obj) || PyUnicode_Check(obj))
   #define __Pyx_PyBaseString_CheckExact(obj) (PyString_CheckExact(obj) || PyUnicode_CheckExact(obj))
 #endif
+#if CYTHON_COMPILING_IN_CPYTHON
+  #define __Pyx_PySequence_ListKeepNew(obj)\
+    (likely(PyList_CheckExact(obj) && Py_REFCNT(obj) == 1) ? __Pyx_NewRef(obj) : PySequence_List(obj))
+#else
+  #define __Pyx_PySequence_ListKeepNew(obj)  PySequence_List(obj)
+#endif
 #ifndef PySet_CheckExact
-  #define PySet_CheckExact(obj)        (Py_TYPE(obj) == &PySet_Type)
+  #define PySet_CheckExact(obj)        __Pyx_IS_TYPE(obj, &PySet_Type)
 #endif
 #if PY_VERSION_HEX >= 0x030900A4
   #define __Pyx_SET_REFCNT(obj, refcnt) Py_SET_REFCNT(obj, refcnt)
@@ -602,15 +1068,42 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define __Pyx_SET_SIZE(obj, size) Py_SIZE(obj) = (size)
 #endif
 #if CYTHON_ASSUME_SAFE_MACROS
+  #define __Pyx_PySequence_ITEM(o, i) PySequence_ITEM(o, i)
   #define __Pyx_PySequence_SIZE(seq)  Py_SIZE(seq)
+  #define __Pyx_PyTuple_SET_ITEM(o, i, v) (PyTuple_SET_ITEM(o, i, v), (0))
+  #define __Pyx_PyList_SET_ITEM(o, i, v) (PyList_SET_ITEM(o, i, v), (0))
+  #define __Pyx_PyTuple_GET_SIZE(o) PyTuple_GET_SIZE(o)
+  #define __Pyx_PyList_GET_SIZE(o) PyList_GET_SIZE(o)
+  #define __Pyx_PySet_GET_SIZE(o) PySet_GET_SIZE(o)
+  #define __Pyx_PyBytes_GET_SIZE(o) PyBytes_GET_SIZE(o)
+  #define __Pyx_PyByteArray_GET_SIZE(o) PyByteArray_GET_SIZE(o)
 #else
+  #define __Pyx_PySequence_ITEM(o, i) PySequence_GetItem(o, i)
   #define __Pyx_PySequence_SIZE(seq)  PySequence_Size(seq)
+  #define __Pyx_PyTuple_SET_ITEM(o, i, v) PyTuple_SetItem(o, i, v)
+  #define __Pyx_PyList_SET_ITEM(o, i, v) PyList_SetItem(o, i, v)
+  #define __Pyx_PyTuple_GET_SIZE(o) PyTuple_Size(o)
+  #define __Pyx_PyList_GET_SIZE(o) PyList_Size(o)
+  #define __Pyx_PySet_GET_SIZE(o) PySet_Size(o)
+  #define __Pyx_PyBytes_GET_SIZE(o) PyBytes_Size(o)
+  #define __Pyx_PyByteArray_GET_SIZE(o) PyByteArray_Size(o)
+#endif
+#if PY_VERSION_HEX >= 0x030d00A1
+  #define __Pyx_PyImport_AddModuleRef(name) PyImport_AddModuleRef(name)
+#else
+  static CYTHON_INLINE PyObject *__Pyx_PyImport_AddModuleRef(const char *name) {
+      PyObject *module = PyImport_AddModule(name);
+      Py_XINCREF(module);
+      return module;
+  }
 #endif
 #if PY_MAJOR_VERSION >= 3
   #define PyIntObject                  PyLongObject
   #define PyInt_Type                   PyLong_Type
   #define PyInt_Check(op)              PyLong_Check(op)
   #define PyInt_CheckExact(op)         PyLong_CheckExact(op)
+  #define __Pyx_Py3Int_Check(op)       PyLong_Check(op)
+  #define __Pyx_Py3Int_CheckExact(op)  PyLong_CheckExact(op)
   #define PyInt_FromString             PyLong_FromString
   #define PyInt_FromUnicode            PyLong_FromUnicode
   #define PyInt_FromLong               PyLong_FromLong
@@ -622,6 +1115,9 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define PyInt_AsUnsignedLongMask     PyLong_AsUnsignedLongMask
   #define PyInt_AsUnsignedLongLongMask PyLong_AsUnsignedLongLongMask
   #define PyNumber_Int                 PyNumber_Long
+#else
+  #define __Pyx_Py3Int_Check(op)       (PyLong_Check(op) || PyInt_Check(op))
+  #define __Pyx_Py3Int_CheckExact(op)  (PyLong_CheckExact(op) || PyInt_CheckExact(op))
 #endif
 #if PY_MAJOR_VERSION >= 3
   #define PyBoolObject                 PyLongObject
@@ -639,11 +1135,6 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define __Pyx_PyInt_FromHash_t PyInt_FromSsize_t
   #define __Pyx_PyInt_AsHash_t   __Pyx_PyIndex_AsSsize_t
 #endif
-#if PY_MAJOR_VERSION >= 3
-  #define __Pyx_PyMethod_New(func, self, klass) ((self) ? ((void)(klass), PyMethod_New(func, self)) : __Pyx_NewRef(func))
-#else
-  #define __Pyx_PyMethod_New(func, self, klass) PyMethod_New(func, self, klass)
-#endif
 #if CYTHON_USE_ASYNC_SLOTS
   #if PY_VERSION_HEX >= 0x030500B1
     #define __Pyx_PyAsyncMethodsStruct PyAsyncMethods
@@ -662,8 +1153,10 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
     } __Pyx_PyAsyncMethodsStruct;
 #endif
 
-#if defined(WIN32) || defined(MS_WINDOWS)
-  #define _USE_MATH_DEFINES
+#if defined(_WIN32) || defined(WIN32) || defined(MS_WINDOWS)
+  #if !defined(_USE_MATH_DEFINES)
+    #define _USE_MATH_DEFINES
+  #endif
 #endif
 #include <math.h>
 #ifdef NAN
@@ -686,7 +1179,16 @@ static CYTHON_INLINE float __PYX_NAN() {
 #define __PYX_ERR(f_index, lineno, Ln_error) \
     { __PYX_MARK_ERR_POS(f_index, lineno) goto Ln_error; }
 
-#ifndef __PYX_EXTERN_C
+#ifdef CYTHON_EXTERN_C
+    #undef __PYX_EXTERN_C
+    #define __PYX_EXTERN_C CYTHON_EXTERN_C
+#elif defined(__PYX_EXTERN_C)
+    #ifdef _MSC_VER
+    #pragma message ("Please do not define the '__PYX_EXTERN_C' macro externally. Use 'CYTHON_EXTERN_C' instead.")
+    #else
+    #warning Please do not define the '__PYX_EXTERN_C' macro externally. Use 'CYTHON_EXTERN_C' instead.
+    #endif
+#else
   #ifdef __cplusplus
     #define __PYX_EXTERN_C extern "C"
   #else
@@ -702,8 +1204,6 @@ static CYTHON_INLINE float __PYX_NAN() {
 #include "pythread.h"
 #include <string.h>
 #include <stdlib.h>
-#include <stdio.h>
-#include "pystate.h"
 #ifdef _OPENMP
 #include <omp.h>
 #endif /* _OPENMP */
@@ -752,9 +1252,10 @@ static CYTHON_INLINE int __Pyx_is_valid_index(Py_ssize_t i, Py_ssize_t limit) {
 #else
     #define __Pyx_sst_abs(value) ((value<0) ? -value : value)
 #endif
+static CYTHON_INLINE Py_ssize_t __Pyx_ssize_strlen(const char *s);
 static CYTHON_INLINE const char* __Pyx_PyObject_AsString(PyObject*);
 static CYTHON_INLINE const char* __Pyx_PyObject_AsStringAndSize(PyObject*, Py_ssize_t* length);
-#define __Pyx_PyByteArray_FromString(s) PyByteArray_FromStringAndSize((const char*)s, strlen((const char*)s))
+static CYTHON_INLINE PyObject* __Pyx_PyByteArray_FromString(const char*);
 #define __Pyx_PyByteArray_FromStringAndSize(s, l) PyByteArray_FromStringAndSize((const char*)s, l)
 #define __Pyx_PyBytes_FromString        PyBytes_FromString
 #define __Pyx_PyBytes_FromStringAndSize PyBytes_FromStringAndSize
@@ -772,9 +1273,9 @@ static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char*);
 #define __Pyx_PyBytes_AsString(s)     ((const char*) PyBytes_AS_STRING(s))
 #define __Pyx_PyBytes_AsSString(s)    ((const signed char*) PyBytes_AS_STRING(s))
 #define __Pyx_PyBytes_AsUString(s)    ((const unsigned char*) PyBytes_AS_STRING(s))
-#define __Pyx_PyObject_AsWritableString(s)    ((char*) __Pyx_PyObject_AsString(s))
-#define __Pyx_PyObject_AsWritableSString(s)    ((signed char*) __Pyx_PyObject_AsString(s))
-#define __Pyx_PyObject_AsWritableUString(s)    ((unsigned char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_AsWritableString(s)    ((char*)(__pyx_uintptr_t) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_AsWritableSString(s)    ((signed char*)(__pyx_uintptr_t) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_AsWritableUString(s)    ((unsigned char*)(__pyx_uintptr_t) __Pyx_PyObject_AsString(s))
 #define __Pyx_PyObject_AsSString(s)    ((const signed char*) __Pyx_PyObject_AsString(s))
 #define __Pyx_PyObject_AsUString(s)    ((const unsigned char*) __Pyx_PyObject_AsString(s))
 #define __Pyx_PyObject_FromCString(s)  __Pyx_PyObject_FromString((const char*)s)
@@ -782,13 +1283,24 @@ static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char*);
 #define __Pyx_PyByteArray_FromCString(s)   __Pyx_PyByteArray_FromString((const char*)s)
 #define __Pyx_PyStr_FromCString(s)     __Pyx_PyStr_FromString((const char*)s)
 #define __Pyx_PyUnicode_FromCString(s) __Pyx_PyUnicode_FromString((const char*)s)
-static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const Py_UNICODE *u) {
-    const Py_UNICODE *u_end = u;
+#if CYTHON_COMPILING_IN_LIMITED_API
+static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const wchar_t *u)
+{
+    const wchar_t *u_end = u;
     while (*u_end++) ;
     return (size_t)(u_end - u - 1);
 }
-#define __Pyx_PyUnicode_FromUnicode(u)       PyUnicode_FromUnicode(u, __Pyx_Py_UNICODE_strlen(u))
-#define __Pyx_PyUnicode_FromUnicodeAndLength PyUnicode_FromUnicode
+#else
+static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const Py_UNICODE *u)
+{
+    const Py_UNICODE *u_end = u;
+    while (*u_end++) ;
+    return (size_t)(u_end - u - 1);
+}
+#endif
+#define __Pyx_PyUnicode_FromOrdinal(o)       PyUnicode_FromOrdinal((int)o)
+#define __Pyx_PyUnicode_FromUnicode(u)       PyUnicode_FromUnicode(u, __Pyx_Py_UNICODE_strlen(u))
+#define __Pyx_PyUnicode_FromUnicodeAndLength PyUnicode_FromUnicode
 #define __Pyx_PyUnicode_AsUnicode            PyUnicode_AsUnicode
 #define __Pyx_NewRef(obj) (Py_INCREF(obj), obj)
 #define __Pyx_Owned_Py_None(b) __Pyx_NewRef(Py_None)
@@ -812,8 +1324,54 @@ static CYTHON_INLINE Py_hash_t __Pyx_PyIndex_AsHash_t(PyObject*);
 #else
 #define __Pyx_PyNumber_Int(x) (PyInt_CheckExact(x) ? __Pyx_NewRef(x) : PyNumber_Int(x))
 #endif
-#define __Pyx_PyNumber_Float(x) (PyFloat_CheckExact(x) ? __Pyx_NewRef(x) : PyNumber_Float(x))
+#if CYTHON_USE_PYLONG_INTERNALS
+  #if PY_VERSION_HEX >= 0x030C00A7
+  #ifndef _PyLong_SIGN_MASK
+    #define _PyLong_SIGN_MASK 3
+  #endif
+  #ifndef _PyLong_NON_SIZE_BITS
+    #define _PyLong_NON_SIZE_BITS 3
+  #endif
+  #define __Pyx_PyLong_Sign(x)  (((PyLongObject*)x)->long_value.lv_tag & _PyLong_SIGN_MASK)
+  #define __Pyx_PyLong_IsNeg(x)  ((__Pyx_PyLong_Sign(x) & 2) != 0)
+  #define __Pyx_PyLong_IsNonNeg(x)  (!__Pyx_PyLong_IsNeg(x))
+  #define __Pyx_PyLong_IsZero(x)  (__Pyx_PyLong_Sign(x) & 1)
+  #define __Pyx_PyLong_IsPos(x)  (__Pyx_PyLong_Sign(x) == 0)
+  #define __Pyx_PyLong_CompactValueUnsigned(x)  (__Pyx_PyLong_Digits(x)[0])
+  #define __Pyx_PyLong_DigitCount(x)  ((Py_ssize_t) (((PyLongObject*)x)->long_value.lv_tag >> _PyLong_NON_SIZE_BITS))
+  #define __Pyx_PyLong_SignedDigitCount(x)\
+        ((1 - (Py_ssize_t) __Pyx_PyLong_Sign(x)) * __Pyx_PyLong_DigitCount(x))
+  #if defined(PyUnstable_Long_IsCompact) && defined(PyUnstable_Long_CompactValue)
+    #define __Pyx_PyLong_IsCompact(x)     PyUnstable_Long_IsCompact((PyLongObject*) x)
+    #define __Pyx_PyLong_CompactValue(x)  PyUnstable_Long_CompactValue((PyLongObject*) x)
+  #else
+    #define __Pyx_PyLong_IsCompact(x)     (((PyLongObject*)x)->long_value.lv_tag < (2 << _PyLong_NON_SIZE_BITS))
+    #define __Pyx_PyLong_CompactValue(x)  ((1 - (Py_ssize_t) __Pyx_PyLong_Sign(x)) * (Py_ssize_t) __Pyx_PyLong_Digits(x)[0])
+  #endif
+  typedef Py_ssize_t  __Pyx_compact_pylong;
+  typedef size_t  __Pyx_compact_upylong;
+  #else
+  #define __Pyx_PyLong_IsNeg(x)  (Py_SIZE(x) < 0)
+  #define __Pyx_PyLong_IsNonNeg(x)  (Py_SIZE(x) >= 0)
+  #define __Pyx_PyLong_IsZero(x)  (Py_SIZE(x) == 0)
+  #define __Pyx_PyLong_IsPos(x)  (Py_SIZE(x) > 0)
+  #define __Pyx_PyLong_CompactValueUnsigned(x)  ((Py_SIZE(x) == 0) ? 0 : __Pyx_PyLong_Digits(x)[0])
+  #define __Pyx_PyLong_DigitCount(x)  __Pyx_sst_abs(Py_SIZE(x))
+  #define __Pyx_PyLong_SignedDigitCount(x)  Py_SIZE(x)
+  #define __Pyx_PyLong_IsCompact(x)  (Py_SIZE(x) == 0 || Py_SIZE(x) == 1 || Py_SIZE(x) == -1)
+  #define __Pyx_PyLong_CompactValue(x)\
+        ((Py_SIZE(x) == 0) ? (sdigit) 0 : ((Py_SIZE(x) < 0) ? -(sdigit)__Pyx_PyLong_Digits(x)[0] : (sdigit)__Pyx_PyLong_Digits(x)[0]))
+  typedef sdigit  __Pyx_compact_pylong;
+  typedef digit  __Pyx_compact_upylong;
+  #endif
+  #if PY_VERSION_HEX >= 0x030C00A5
+  #define __Pyx_PyLong_Digits(x)  (((PyLongObject*)x)->long_value.ob_digit)
+  #else
+  #define __Pyx_PyLong_Digits(x)  (((PyLongObject*)x)->ob_digit)
+  #endif
+#endif
 #if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+#include <string.h>
 static int __Pyx_sys_getdefaultencoding_not_ascii;
 static int __Pyx_init_sys_getdefaultencoding_params(void) {
     PyObject* sys;
@@ -834,7 +1392,7 @@ static int __Pyx_init_sys_getdefaultencoding_params(void) {
         char ascii_chars[128];
         int c;
         for (c = 0; c < 128; c++) {
-            ascii_chars[c] = c;
+            ascii_chars[c] = (char) c;
         }
         __Pyx_sys_getdefaultencoding_not_ascii = 1;
         ascii_chars_u = PyUnicode_DecodeASCII(ascii_chars, 128, NULL);
@@ -864,6 +1422,7 @@ bad:
 #else
 #define __Pyx_PyUnicode_FromStringAndSize(c_str, size) PyUnicode_Decode(c_str, size, __PYX_DEFAULT_STRING_ENCODING, NULL)
 #if __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
+#include <string.h>
 static char* __PYX_DEFAULT_STRING_ENCODING;
 static int __Pyx_init_sys_getdefaultencoding_params(void) {
     PyObject* sys;
@@ -899,83 +1458,21 @@ bad:
 #endif /* __GNUC__ */
 static CYTHON_INLINE void __Pyx_pretend_to_initialize(void* ptr) { (void)ptr; }
 
+#if !CYTHON_USE_MODULE_STATE
 static PyObject *__pyx_m = NULL;
-static PyObject *__pyx_d;
-static PyObject *__pyx_b;
-static PyObject *__pyx_cython_runtime = NULL;
-static PyObject *__pyx_empty_tuple;
-static PyObject *__pyx_empty_bytes;
-static PyObject *__pyx_empty_unicode;
+#endif
 static int __pyx_lineno;
 static int __pyx_clineno = 0;
-static const char * __pyx_cfilenm= __FILE__;
+static const char * __pyx_cfilenm = __FILE__;
 static const char *__pyx_filename;
 
+/* #### Code section: filename_table ### */
 
 static const char *__pyx_f[] = {
   "voxelize.pyx",
-  "stringsource",
+  "<stringsource>",
 };
-/* MemviewSliceStruct.proto */
-struct __pyx_memoryview_obj;
-typedef struct {
-  struct __pyx_memoryview_obj *memview;
-  char *data;
-  Py_ssize_t shape[8];
-  Py_ssize_t strides[8];
-  Py_ssize_t suboffsets[8];
-} __Pyx_memviewslice;
-#define __Pyx_MemoryView_Len(m)  (m.shape[0])
-
-/* Atomics.proto */
-#include <pythread.h>
-#ifndef CYTHON_ATOMICS
-    #define CYTHON_ATOMICS 1
-#endif
-#define __pyx_atomic_int_type int
-#if CYTHON_ATOMICS && __GNUC__ >= 4 && (__GNUC_MINOR__ > 1 ||\
-                    (__GNUC_MINOR__ == 1 && __GNUC_PATCHLEVEL >= 2)) &&\
-                    !defined(__i386__)
-    #define __pyx_atomic_incr_aligned(value, lock) __sync_fetch_and_add(value, 1)
-    #define __pyx_atomic_decr_aligned(value, lock) __sync_fetch_and_sub(value, 1)
-    #ifdef __PYX_DEBUG_ATOMICS
-        #warning "Using GNU atomics"
-    #endif
-#elif CYTHON_ATOMICS && defined(_MSC_VER) && 0
-    #include <Windows.h>
-    #undef __pyx_atomic_int_type
-    #define __pyx_atomic_int_type LONG
-    #define __pyx_atomic_incr_aligned(value, lock) InterlockedIncrement(value)
-    #define __pyx_atomic_decr_aligned(value, lock) InterlockedDecrement(value)
-    #ifdef __PYX_DEBUG_ATOMICS
-        #pragma message ("Using MSVC atomics")
-    #endif
-#elif CYTHON_ATOMICS && (defined(__ICC) || defined(__INTEL_COMPILER)) && 0
-    #define __pyx_atomic_incr_aligned(value, lock) _InterlockedIncrement(value)
-    #define __pyx_atomic_decr_aligned(value, lock) _InterlockedDecrement(value)
-    #ifdef __PYX_DEBUG_ATOMICS
-        #warning "Using Intel atomics"
-    #endif
-#else
-    #undef CYTHON_ATOMICS
-    #define CYTHON_ATOMICS 0
-    #ifdef __PYX_DEBUG_ATOMICS
-        #warning "Not using atomics"
-    #endif
-#endif
-typedef volatile __pyx_atomic_int_type __pyx_atomic_int;
-#if CYTHON_ATOMICS
-    #define __pyx_add_acquisition_count(memview)\
-             __pyx_atomic_incr_aligned(__pyx_get_slice_count_pointer(memview), memview->lock)
-    #define __pyx_sub_acquisition_count(memview)\
-            __pyx_atomic_decr_aligned(__pyx_get_slice_count_pointer(memview), memview->lock)
-#else
-    #define __pyx_add_acquisition_count(memview)\
-            __pyx_add_acquisition_count_locked(__pyx_get_slice_count_pointer(memview), memview->lock)
-    #define __pyx_sub_acquisition_count(memview)\
-            __pyx_sub_acquisition_count_locked(__pyx_get_slice_count_pointer(memview), memview->lock)
-#endif
-
+/* #### Code section: utility_code_proto_before_types ### */
 /* ForceInitThreads.proto */
 #ifndef __PYX_FORCE_INIT_THREADS
   #define __PYX_FORCE_INIT_THREADS 0
@@ -989,7 +1486,6 @@ typedef volatile __pyx_atomic_int_type __pyx_atomic_int;
 #define __Pyx_FastGilFuncInit()
 
 /* BufferFormatStructs.proto */
-#define IS_UNSIGNED(type) (((type) -1) > 0)
 struct __Pyx_StructField_;
 #define __PYX_BUF_FLAGS_PACKED_STRUCT (1 << 0)
 typedef struct {
@@ -1024,6 +1520,103 @@ typedef struct {
   char is_valid_array;
 } __Pyx_BufFmt_Context;
 
+/* Atomics.proto */
+#include <pythread.h>
+#ifndef CYTHON_ATOMICS
+    #define CYTHON_ATOMICS 1
+#endif
+#define __PYX_CYTHON_ATOMICS_ENABLED() CYTHON_ATOMICS
+#define __pyx_atomic_int_type int
+#define __pyx_nonatomic_int_type int
+#if CYTHON_ATOMICS && (defined(__STDC_VERSION__) &&\
+                        (__STDC_VERSION__ >= 201112L) &&\
+                        !defined(__STDC_NO_ATOMICS__))
+    #include <stdatomic.h>
+#elif CYTHON_ATOMICS && (defined(__cplusplus) && (\
+                    (__cplusplus >= 201103L) ||\
+                    (defined(_MSC_VER) && _MSC_VER >= 1700)))
+    #include <atomic>
+#endif
+#if CYTHON_ATOMICS && (defined(__STDC_VERSION__) &&\
+                        (__STDC_VERSION__ >= 201112L) &&\
+                        !defined(__STDC_NO_ATOMICS__) &&\
+                       ATOMIC_INT_LOCK_FREE == 2)
+    #undef __pyx_atomic_int_type
+    #define __pyx_atomic_int_type atomic_int
+    #define __pyx_atomic_incr_aligned(value) atomic_fetch_add_explicit(value, 1, memory_order_relaxed)
+    #define __pyx_atomic_decr_aligned(value) atomic_fetch_sub_explicit(value, 1, memory_order_acq_rel)
+    #if defined(__PYX_DEBUG_ATOMICS) && defined(_MSC_VER)
+        #pragma message ("Using standard C atomics")
+    #elif defined(__PYX_DEBUG_ATOMICS)
+        #warning "Using standard C atomics"
+    #endif
+#elif CYTHON_ATOMICS && (defined(__cplusplus) && (\
+                    (__cplusplus >= 201103L) ||\
+\
+                    (defined(_MSC_VER) && _MSC_VER >= 1700)) &&\
+                    ATOMIC_INT_LOCK_FREE == 2)
+    #undef __pyx_atomic_int_type
+    #define __pyx_atomic_int_type std::atomic_int
+    #define __pyx_atomic_incr_aligned(value) std::atomic_fetch_add_explicit(value, 1, std::memory_order_relaxed)
+    #define __pyx_atomic_decr_aligned(value) std::atomic_fetch_sub_explicit(value, 1, std::memory_order_acq_rel)
+    #if defined(__PYX_DEBUG_ATOMICS) && defined(_MSC_VER)
+        #pragma message ("Using standard C++ atomics")
+    #elif defined(__PYX_DEBUG_ATOMICS)
+        #warning "Using standard C++ atomics"
+    #endif
+#elif CYTHON_ATOMICS && (__GNUC__ >= 5 || (__GNUC__ == 4 &&\
+                    (__GNUC_MINOR__ > 1 ||\
+                    (__GNUC_MINOR__ == 1 && __GNUC_PATCHLEVEL__ >= 2))))
+    #define __pyx_atomic_incr_aligned(value) __sync_fetch_and_add(value, 1)
+    #define __pyx_atomic_decr_aligned(value) __sync_fetch_and_sub(value, 1)
+    #ifdef __PYX_DEBUG_ATOMICS
+        #warning "Using GNU atomics"
+    #endif
+#elif CYTHON_ATOMICS && defined(_MSC_VER)
+    #include <intrin.h>
+    #undef __pyx_atomic_int_type
+    #define __pyx_atomic_int_type long
+    #undef __pyx_nonatomic_int_type
+    #define __pyx_nonatomic_int_type long
+    #pragma intrinsic (_InterlockedExchangeAdd)
+    #define __pyx_atomic_incr_aligned(value) _InterlockedExchangeAdd(value, 1)
+    #define __pyx_atomic_decr_aligned(value) _InterlockedExchangeAdd(value, -1)
+    #ifdef __PYX_DEBUG_ATOMICS
+        #pragma message ("Using MSVC atomics")
+    #endif
+#else
+    #undef CYTHON_ATOMICS
+    #define CYTHON_ATOMICS 0
+    #ifdef __PYX_DEBUG_ATOMICS
+        #warning "Not using atomics"
+    #endif
+#endif
+#if CYTHON_ATOMICS
+    #define __pyx_add_acquisition_count(memview)\
+             __pyx_atomic_incr_aligned(__pyx_get_slice_count_pointer(memview))
+    #define __pyx_sub_acquisition_count(memview)\
+            __pyx_atomic_decr_aligned(__pyx_get_slice_count_pointer(memview))
+#else
+    #define __pyx_add_acquisition_count(memview)\
+            __pyx_add_acquisition_count_locked(__pyx_get_slice_count_pointer(memview), memview->lock)
+    #define __pyx_sub_acquisition_count(memview)\
+            __pyx_sub_acquisition_count_locked(__pyx_get_slice_count_pointer(memview), memview->lock)
+#endif
+
+/* MemviewSliceStruct.proto */
+struct __pyx_memoryview_obj;
+typedef struct {
+  struct __pyx_memoryview_obj *memview;
+  char *data;
+  Py_ssize_t shape[8];
+  Py_ssize_t strides[8];
+  Py_ssize_t suboffsets[8];
+} __Pyx_memviewslice;
+#define __Pyx_MemoryView_Len(m)  (m.shape[0])
+
+/* #### Code section: numeric_typedefs ### */
+/* #### Code section: complex_type_declarations ### */
+/* #### Code section: type_declarations ### */
 
 /*--- Type declarations ---*/
 struct __pyx_array_obj;
@@ -1031,8 +1624,8 @@ struct __pyx_MemviewEnum_obj;
 struct __pyx_memoryview_obj;
 struct __pyx_memoryviewslice_obj;
 
-/* "View.MemoryView":105
- * 
+/* "View.MemoryView":114
+ * @cython.collection_type("sequence")
  * @cname("__pyx_array")
  * cdef class array:             # <<<<<<<<<<<<<<
  * 
@@ -1056,7 +1649,7 @@ struct __pyx_array_obj {
 };
 
 
-/* "View.MemoryView":279
+/* "View.MemoryView":302
  * 
  * @cname('__pyx_MemviewEnum')
  * cdef class Enum(object):             # <<<<<<<<<<<<<<
@@ -1069,10 +1662,10 @@ struct __pyx_MemviewEnum_obj {
 };
 
 
-/* "View.MemoryView":330
+/* "View.MemoryView":337
  * 
  * @cname('__pyx_memoryview')
- * cdef class memoryview(object):             # <<<<<<<<<<<<<<
+ * cdef class memoryview:             # <<<<<<<<<<<<<<
  * 
  *     cdef object obj
  */
@@ -1083,8 +1676,7 @@ struct __pyx_memoryview_obj {
   PyObject *_size;
   PyObject *_array_interface;
   PyThread_type_lock lock;
-  __pyx_atomic_int acquisition_count[2];
-  __pyx_atomic_int *acquisition_count_aligned_p;
+  __pyx_atomic_int_type acquisition_count;
   Py_buffer view;
   int flags;
   int dtype_is_object;
@@ -1092,8 +1684,8 @@ struct __pyx_memoryview_obj {
 };
 
 
-/* "View.MemoryView":965
- * 
+/* "View.MemoryView":952
+ * @cython.collection_type("sequence")
  * @cname('__pyx_memoryviewslice')
  * cdef class _memoryviewslice(memoryview):             # <<<<<<<<<<<<<<
  *     "Internal class for passing memoryview slices to Python"
@@ -1109,8 +1701,8 @@ struct __pyx_memoryviewslice_obj {
 
 
 
-/* "View.MemoryView":105
- * 
+/* "View.MemoryView":114
+ * @cython.collection_type("sequence")
  * @cname("__pyx_array")
  * cdef class array:             # <<<<<<<<<<<<<<
  * 
@@ -1123,10 +1715,10 @@ struct __pyx_vtabstruct_array {
 static struct __pyx_vtabstruct_array *__pyx_vtabptr_array;
 
 
-/* "View.MemoryView":330
+/* "View.MemoryView":337
  * 
  * @cname('__pyx_memoryview')
- * cdef class memoryview(object):             # <<<<<<<<<<<<<<
+ * cdef class memoryview:             # <<<<<<<<<<<<<<
  * 
  *     cdef object obj
  */
@@ -1139,12 +1731,13 @@ struct __pyx_vtabstruct_memoryview {
   PyObject *(*setitem_indexed)(struct __pyx_memoryview_obj *, PyObject *, PyObject *);
   PyObject *(*convert_item_to_object)(struct __pyx_memoryview_obj *, char *);
   PyObject *(*assign_item_from_object)(struct __pyx_memoryview_obj *, char *, PyObject *);
+  PyObject *(*_get_base)(struct __pyx_memoryview_obj *);
 };
 static struct __pyx_vtabstruct_memoryview *__pyx_vtabptr_memoryview;
 
 
-/* "View.MemoryView":965
- * 
+/* "View.MemoryView":952
+ * @cython.collection_type("sequence")
  * @cname('__pyx_memoryviewslice')
  * cdef class _memoryviewslice(memoryview):             # <<<<<<<<<<<<<<
  *     "Internal class for passing memoryview slices to Python"
@@ -1155,6 +1748,7 @@ struct __pyx_vtabstruct__memoryviewslice {
   struct __pyx_vtabstruct_memoryview __pyx_base;
 };
 static struct __pyx_vtabstruct__memoryviewslice *__pyx_vtabptr__memoryviewslice;
+/* #### Code section: utility_code_proto ### */
 
 /* --- Runtime support code (head) --- */
 /* Refnanny.proto */
@@ -1163,11 +1757,11 @@ static struct __pyx_vtabstruct__memoryviewslice *__pyx_vtabptr__memoryviewslice;
 #endif
 #if CYTHON_REFNANNY
   typedef struct {
-    void (*INCREF)(void*, PyObject*, int);
-    void (*DECREF)(void*, PyObject*, int);
-    void (*GOTREF)(void*, PyObject*, int);
-    void (*GIVEREF)(void*, PyObject*, int);
-    void* (*SetupContext)(const char*, int, const char*);
+    void (*INCREF)(void*, PyObject*, Py_ssize_t);
+    void (*DECREF)(void*, PyObject*, Py_ssize_t);
+    void (*GOTREF)(void*, PyObject*, Py_ssize_t);
+    void (*GIVEREF)(void*, PyObject*, Py_ssize_t);
+    void* (*SetupContext)(const char*, Py_ssize_t, const char*);
     void (*FinishContext)(void**);
   } __Pyx_RefNannyAPIStruct;
   static __Pyx_RefNannyAPIStruct *__Pyx_RefNanny = NULL;
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   #define __Pyx_RefNannySetupContext(name, acquire_gil)\
           if (acquire_gil) {\
               PyGILState_STATE __pyx_gilstate_save = PyGILState_Ensure();\
-              __pyx_refnanny = __Pyx_RefNanny->SetupContext((name), __LINE__, __FILE__);\
+              __pyx_refnanny = __Pyx_RefNanny->SetupContext((name), (__LINE__), (__FILE__));\
               PyGILState_Release(__pyx_gilstate_save);\
           } else {\
-              __pyx_refnanny = __Pyx_RefNanny->SetupContext((name), __LINE__, __FILE__);\
+              __pyx_refnanny = __Pyx_RefNanny->SetupContext((name), (__LINE__), (__FILE__));\
+          }
+  #define __Pyx_RefNannyFinishContextNogil() {\
+              PyGILState_STATE __pyx_gilstate_save = PyGILState_Ensure();\
+              __Pyx_RefNannyFinishContext();\
+              PyGILState_Release(__pyx_gilstate_save);\
           }
 #else
   #define __Pyx_RefNannySetupContext(name, acquire_gil)\
-          __pyx_refnanny = __Pyx_RefNanny->SetupContext((name), __LINE__, __FILE__)
+          __pyx_refnanny = __Pyx_RefNanny->SetupContext((name), (__LINE__), (__FILE__))
+  #define __Pyx_RefNannyFinishContextNogil() __Pyx_RefNannyFinishContext()
 #endif
+  #define __Pyx_RefNannyFinishContextNogil() {\
+              PyGILState_STATE __pyx_gilstate_save = PyGILState_Ensure();\
+              __Pyx_RefNannyFinishContext();\
+              PyGILState_Release(__pyx_gilstate_save);\
+          }
   #define __Pyx_RefNannyFinishContext()\
           __Pyx_RefNanny->FinishContext(&__pyx_refnanny)
-  #define __Pyx_INCREF(r)  __Pyx_RefNanny->INCREF(__pyx_refnanny, (PyObject *)(r), __LINE__)
-  #define __Pyx_DECREF(r)  __Pyx_RefNanny->DECREF(__pyx_refnanny, (PyObject *)(r), __LINE__)
-  #define __Pyx_GOTREF(r)  __Pyx_RefNanny->GOTREF(__pyx_refnanny, (PyObject *)(r), __LINE__)
-  #define __Pyx_GIVEREF(r) __Pyx_RefNanny->GIVEREF(__pyx_refnanny, (PyObject *)(r), __LINE__)
-  #define __Pyx_XINCREF(r)  do { if((r) != NULL) {__Pyx_INCREF(r); }} while(0)
-  #define __Pyx_XDECREF(r)  do { if((r) != NULL) {__Pyx_DECREF(r); }} while(0)
-  #define __Pyx_XGOTREF(r)  do { if((r) != NULL) {__Pyx_GOTREF(r); }} while(0)
-  #define __Pyx_XGIVEREF(r) do { if((r) != NULL) {__Pyx_GIVEREF(r);}} while(0)
+  #define __Pyx_INCREF(r)  __Pyx_RefNanny->INCREF(__pyx_refnanny, (PyObject *)(r), (__LINE__))
+  #define __Pyx_DECREF(r)  __Pyx_RefNanny->DECREF(__pyx_refnanny, (PyObject *)(r), (__LINE__))
+  #define __Pyx_GOTREF(r)  __Pyx_RefNanny->GOTREF(__pyx_refnanny, (PyObject *)(r), (__LINE__))
+  #define __Pyx_GIVEREF(r) __Pyx_RefNanny->GIVEREF(__pyx_refnanny, (PyObject *)(r), (__LINE__))
+  #define __Pyx_XINCREF(r)  do { if((r) == NULL); else {__Pyx_INCREF(r); }} while(0)
+  #define __Pyx_XDECREF(r)  do { if((r) == NULL); else {__Pyx_DECREF(r); }} while(0)
+  #define __Pyx_XGOTREF(r)  do { if((r) == NULL); else {__Pyx_GOTREF(r); }} while(0)
+  #define __Pyx_XGIVEREF(r) do { if((r) == NULL); else {__Pyx_GIVEREF(r);}} while(0)
 #else
   #define __Pyx_RefNannyDeclarations
   #define __Pyx_RefNannySetupContext(name, acquire_gil)
+  #define __Pyx_RefNannyFinishContextNogil()
   #define __Pyx_RefNannyFinishContext()
   #define __Pyx_INCREF(r) Py_INCREF(r)
   #define __Pyx_DECREF(r) Py_DECREF(r)
@@ -1209,6 +1815,10 @@ static struct __pyx_vtabstruct__memoryviewslice *__pyx_vtabptr__memoryviewslice;
   #define __Pyx_XGOTREF(r)
   #define __Pyx_XGIVEREF(r)
 #endif
+#define __Pyx_Py_XDECREF_SET(r, v) do {\
+        PyObject *tmp = (PyObject *) r;\
+        r = v; Py_XDECREF(tmp);\
+    } while (0)
 #define __Pyx_XDECREF_SET(r, v) do {\
         PyObject *tmp = (PyObject *) r;\
         r = v; __Pyx_XDECREF(tmp);\
@@ -1220,51 +1830,30 @@ static struct __pyx_vtabstruct__memoryviewslice *__pyx_vtabptr__memoryviewslice;
 #define __Pyx_CLEAR(r)    do { PyObject* tmp = ((PyObject*)(r)); r = NULL; __Pyx_DECREF(tmp);} while(0)
 #define __Pyx_XCLEAR(r)   do { if((r) != NULL) {PyObject* tmp = ((PyObject*)(r)); r = NULL; __Pyx_DECREF(tmp);}} while(0)
 
-/* PyObjectGetAttrStr.proto */
-#if CYTHON_USE_TYPE_SLOTS
-static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStr(PyObject* obj, PyObject* attr_name);
+/* PyErrExceptionMatches.proto */
+#if CYTHON_FAST_THREAD_STATE
+#define __Pyx_PyErr_ExceptionMatches(err) __Pyx_PyErr_ExceptionMatchesInState(__pyx_tstate, err)
+static CYTHON_INLINE int __Pyx_PyErr_ExceptionMatchesInState(PyThreadState* tstate, PyObject* err);
 #else
-#define __Pyx_PyObject_GetAttrStr(o,n) PyObject_GetAttr(o,n)
+#define __Pyx_PyErr_ExceptionMatches(err)  PyErr_ExceptionMatches(err)
 #endif
 
-/* GetBuiltinName.proto */
-static PyObject *__Pyx_GetBuiltinName(PyObject *name);
-
-/* MemviewSliceInit.proto */
-#define __Pyx_BUF_MAX_NDIMS %(BUF_MAX_NDIMS)d
-#define __Pyx_MEMVIEW_DIRECT   1
-#define __Pyx_MEMVIEW_PTR      2
-#define __Pyx_MEMVIEW_FULL     4
-#define __Pyx_MEMVIEW_CONTIG   8
-#define __Pyx_MEMVIEW_STRIDED  16
-#define __Pyx_MEMVIEW_FOLLOW   32
-#define __Pyx_IS_C_CONTIG 1
-#define __Pyx_IS_F_CONTIG 2
-static int __Pyx_init_memviewslice(
-                struct __pyx_memoryview_obj *memview,
-                int ndim,
-                __Pyx_memviewslice *memviewslice,
-                int memview_is_new_reference);
-static CYTHON_INLINE int __pyx_add_acquisition_count_locked(
-    __pyx_atomic_int *acquisition_count, PyThread_type_lock lock);
-static CYTHON_INLINE int __pyx_sub_acquisition_count_locked(
-    __pyx_atomic_int *acquisition_count, PyThread_type_lock lock);
-#define __pyx_get_slice_count_pointer(memview) (memview->acquisition_count_aligned_p)
-#define __pyx_get_slice_count(memview) (*__pyx_get_slice_count_pointer(memview))
-#define __PYX_INC_MEMVIEW(slice, have_gil) __Pyx_INC_MEMVIEW(slice, have_gil, __LINE__)
-#define __PYX_XDEC_MEMVIEW(slice, have_gil) __Pyx_XDEC_MEMVIEW(slice, have_gil, __LINE__)
-static CYTHON_INLINE void __Pyx_INC_MEMVIEW(__Pyx_memviewslice *, int, int);
-static CYTHON_INLINE void __Pyx_XDEC_MEMVIEW(__Pyx_memviewslice *, int, int);
-
 /* PyThreadStateGet.proto */
 #if CYTHON_FAST_THREAD_STATE
 #define __Pyx_PyThreadState_declare  PyThreadState *__pyx_tstate;
 #define __Pyx_PyThreadState_assign  __pyx_tstate = __Pyx_PyThreadState_Current;
-#define __Pyx_PyErr_Occurred()  __pyx_tstate->curexc_type
+#if PY_VERSION_HEX >= 0x030C00A6
+#define __Pyx_PyErr_Occurred()  (__pyx_tstate->current_exception != NULL)
+#define __Pyx_PyErr_CurrentExceptionType()  (__pyx_tstate->current_exception ? (PyObject*) Py_TYPE(__pyx_tstate->current_exception) : (PyObject*) NULL)
+#else
+#define __Pyx_PyErr_Occurred()  (__pyx_tstate->curexc_type != NULL)
+#define __Pyx_PyErr_CurrentExceptionType()  (__pyx_tstate->curexc_type)
+#endif
 #else
 #define __Pyx_PyThreadState_declare
 #define __Pyx_PyThreadState_assign
-#define __Pyx_PyErr_Occurred()  PyErr_Occurred()
+#define __Pyx_PyErr_Occurred()  (PyErr_Occurred() != NULL)
+#define __Pyx_PyErr_CurrentExceptionType()  PyErr_Occurred()
 #endif
 
 /* PyErrFetchRestore.proto */
@@ -1276,7 +1865,7 @@ static CYTHON_INLINE void __Pyx_XDEC_MEMVIEW(__Pyx_memviewslice *, int, int);
 #define __Pyx_ErrFetch(type, value, tb)    __Pyx_ErrFetchInState(__pyx_tstate, type, value, tb)
 static CYTHON_INLINE void __Pyx_ErrRestoreInState(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb);
 static CYTHON_INLINE void __Pyx_ErrFetchInState(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb);
-#if CYTHON_COMPILING_IN_CPYTHON
+#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX < 0x030C00A6
 #define __Pyx_PyErr_SetNone(exc) (Py_INCREF(exc), __Pyx_ErrRestore((exc), NULL, NULL))
 #else
 #define __Pyx_PyErr_SetNone(exc) PyErr_SetNone(exc)
@@ -1292,10 +1881,82 @@ static CYTHON_INLINE void __Pyx_ErrFetchInState(PyThreadState *tstate, PyObject
 #define __Pyx_ErrFetch(type, value, tb)  PyErr_Fetch(type, value, tb)
 #endif
 
-/* WriteUnraisableException.proto */
-static void __Pyx_WriteUnraisable(const char *name, int clineno,
-                                  int lineno, const char *filename,
-                                  int full_traceback, int nogil);
+/* PyObjectGetAttrStr.proto */
+#if CYTHON_USE_TYPE_SLOTS
+static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStr(PyObject* obj, PyObject* attr_name);
+#else
+#define __Pyx_PyObject_GetAttrStr(o,n) PyObject_GetAttr(o,n)
+#endif
+
+/* PyObjectGetAttrStrNoError.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStrNoError(PyObject* obj, PyObject* attr_name);
+
+/* GetBuiltinName.proto */
+static PyObject *__Pyx_GetBuiltinName(PyObject *name);
+
+/* TupleAndListFromArray.proto */
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyList_FromArray(PyObject *const *src, Py_ssize_t n);
+static CYTHON_INLINE PyObject* __Pyx_PyTuple_FromArray(PyObject *const *src, Py_ssize_t n);
+#endif
+
+/* IncludeStringH.proto */
+#include <string.h>
+
+/* BytesEquals.proto */
+static CYTHON_INLINE int __Pyx_PyBytes_Equals(PyObject* s1, PyObject* s2, int equals);
+
+/* UnicodeEquals.proto */
+static CYTHON_INLINE int __Pyx_PyUnicode_Equals(PyObject* s1, PyObject* s2, int equals);
+
+/* fastcall.proto */
+#if CYTHON_AVOID_BORROWED_REFS
+    #define __Pyx_Arg_VARARGS(args, i) PySequence_GetItem(args, i)
+#elif CYTHON_ASSUME_SAFE_MACROS
+    #define __Pyx_Arg_VARARGS(args, i) PyTuple_GET_ITEM(args, i)
+#else
+    #define __Pyx_Arg_VARARGS(args, i) PyTuple_GetItem(args, i)
+#endif
+#if CYTHON_AVOID_BORROWED_REFS
+    #define __Pyx_Arg_NewRef_VARARGS(arg) __Pyx_NewRef(arg)
+    #define __Pyx_Arg_XDECREF_VARARGS(arg) Py_XDECREF(arg)
+#else
+    #define __Pyx_Arg_NewRef_VARARGS(arg) arg
+    #define __Pyx_Arg_XDECREF_VARARGS(arg)
+#endif
+#define __Pyx_NumKwargs_VARARGS(kwds) PyDict_Size(kwds)
+#define __Pyx_KwValues_VARARGS(args, nargs) NULL
+#define __Pyx_GetKwValue_VARARGS(kw, kwvalues, s) __Pyx_PyDict_GetItemStrWithError(kw, s)
+#define __Pyx_KwargsAsDict_VARARGS(kw, kwvalues) PyDict_Copy(kw)
+#if CYTHON_METH_FASTCALL
+    #define __Pyx_Arg_FASTCALL(args, i) args[i]
+    #define __Pyx_NumKwargs_FASTCALL(kwds) PyTuple_GET_SIZE(kwds)
+    #define __Pyx_KwValues_FASTCALL(args, nargs) ((args) + (nargs))
+    static CYTHON_INLINE PyObject * __Pyx_GetKwValue_FASTCALL(PyObject *kwnames, PyObject *const *kwvalues, PyObject *s);
+#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030d0000
+    CYTHON_UNUSED static PyObject *__Pyx_KwargsAsDict_FASTCALL(PyObject *kwnames, PyObject *const *kwvalues);
+  #else
+    #define __Pyx_KwargsAsDict_FASTCALL(kw, kwvalues) _PyStack_AsDict(kwvalues, kw)
+  #endif
+    #define __Pyx_Arg_NewRef_FASTCALL(arg) arg  /* no-op, __Pyx_Arg_FASTCALL is direct and this needs
+                                                   to have the same reference counting */
+    #define __Pyx_Arg_XDECREF_FASTCALL(arg)
+#else
+    #define __Pyx_Arg_FASTCALL __Pyx_Arg_VARARGS
+    #define __Pyx_NumKwargs_FASTCALL __Pyx_NumKwargs_VARARGS
+    #define __Pyx_KwValues_FASTCALL __Pyx_KwValues_VARARGS
+    #define __Pyx_GetKwValue_FASTCALL __Pyx_GetKwValue_VARARGS
+    #define __Pyx_KwargsAsDict_FASTCALL __Pyx_KwargsAsDict_VARARGS
+    #define __Pyx_Arg_NewRef_FASTCALL(arg) __Pyx_Arg_NewRef_VARARGS(arg)
+    #define __Pyx_Arg_XDECREF_FASTCALL(arg) __Pyx_Arg_XDECREF_VARARGS(arg)
+#endif
+#if CYTHON_COMPILING_IN_CPYTHON && CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
+#define __Pyx_ArgsSlice_VARARGS(args, start, stop) __Pyx_PyTuple_FromArray(&__Pyx_Arg_VARARGS(args, start), stop - start)
+#define __Pyx_ArgsSlice_FASTCALL(args, start, stop) __Pyx_PyTuple_FromArray(&__Pyx_Arg_FASTCALL(args, start), stop - start)
+#else
+#define __Pyx_ArgsSlice_VARARGS(args, start, stop) PyTuple_GetSlice(args, start, stop)
+#define __Pyx_ArgsSlice_FASTCALL(args, start, stop) PyTuple_GetSlice(args, start, stop)
+#endif
 
 /* RaiseArgTupleInvalid.proto */
 static void __Pyx_RaiseArgtupleInvalid(const char* func_name, int exact,
@@ -1305,51 +1966,44 @@ static void __Pyx_RaiseArgtupleInvalid(const char* func_name, int exact,
 static void __Pyx_RaiseDoubleKeywordsError(const char* func_name, PyObject* kw_name);
 
 /* ParseKeywords.proto */
-static int __Pyx_ParseOptionalKeywords(PyObject *kwds, PyObject **argnames[],\
-    PyObject *kwds2, PyObject *values[], Py_ssize_t num_pos_args,\
+static int __Pyx_ParseOptionalKeywords(PyObject *kwds, PyObject *const *kwvalues,
+    PyObject **argnames[],
+    PyObject *kwds2, PyObject *values[], Py_ssize_t num_pos_args,
     const char* function_name);
 
-/* None.proto */
-static CYTHON_INLINE void __Pyx_RaiseUnboundLocalError(const char *varname);
-
 /* ArgTypeTest.proto */
 #define __Pyx_ArgTypeTest(obj, type, none_allowed, name, exact)\
-    ((likely((Py_TYPE(obj) == type) | (none_allowed && (obj == Py_None)))) ? 1 :\
+    ((likely(__Pyx_IS_TYPE(obj, type) | (none_allowed && (obj == Py_None)))) ? 1 :\
         __Pyx__ArgTypeTest(obj, type, name, exact))
 static int __Pyx__ArgTypeTest(PyObject *obj, PyTypeObject *type, const char *name, int exact);
 
-/* PyObjectCall.proto */
-#if CYTHON_COMPILING_IN_CPYTHON
-static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw);
-#else
-#define __Pyx_PyObject_Call(func, arg, kw) PyObject_Call(func, arg, kw)
-#endif
-
 /* RaiseException.proto */
 static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause);
 
-/* PyCFunctionFastCall.proto */
-#if CYTHON_FAST_PYCCALL
-static CYTHON_INLINE PyObject *__Pyx_PyCFunction_FastCall(PyObject *func, PyObject **args, Py_ssize_t nargs);
-#else
-#define __Pyx_PyCFunction_FastCall(func, args, nargs)  (assert(0), NULL)
-#endif
-
 /* PyFunctionFastCall.proto */
 #if CYTHON_FAST_PYCALL
+#if !CYTHON_VECTORCALL
 #define __Pyx_PyFunction_FastCall(func, args, nargs)\
     __Pyx_PyFunction_FastCallDict((func), (args), (nargs), NULL)
-#if 1 || PY_VERSION_HEX < 0x030600B1
 static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, Py_ssize_t nargs, PyObject *kwargs);
-#else
-#define __Pyx_PyFunction_FastCallDict(func, args, nargs, kwargs) _PyFunction_FastCallDict(func, args, nargs, kwargs)
 #endif
 #define __Pyx_BUILD_ASSERT_EXPR(cond)\
     (sizeof(char [1 - 2*!(cond)]) - 1)
 #ifndef Py_MEMBER_SIZE
 #define Py_MEMBER_SIZE(type, member) sizeof(((type *)0)->member)
 #endif
-#if CYTHON_FAST_PYCALL
+#if !CYTHON_VECTORCALL
+#if PY_VERSION_HEX >= 0x03080000
+  #include "frameobject.h"
+#if PY_VERSION_HEX >= 0x030b00a6 && !CYTHON_COMPILING_IN_LIMITED_API
+  #ifndef Py_BUILD_CORE
+    #define Py_BUILD_CORE 1
+  #endif
+  #include "internal/pycore_frame.h"
+#endif
+  #define __Pxy_PyFrame_Initialize_Offsets()
+  #define __Pyx_PyFrame_GetLocalsplus(frame)  ((frame)->f_localsplus)
+#else
   static size_t __pyx_pyframe_localsplus_offset = 0;
   #include "frameobject.h"
   #define __Pxy_PyFrame_Initialize_Offsets()\
@@ -1357,28 +2011,47 @@ static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args,
      (void)(__pyx_pyframe_localsplus_offset = ((size_t)PyFrame_Type.tp_basicsize) - Py_MEMBER_SIZE(PyFrameObject, f_localsplus)))
   #define __Pyx_PyFrame_GetLocalsplus(frame)\
     (assert(__pyx_pyframe_localsplus_offset), (PyObject **)(((char *)(frame)) + __pyx_pyframe_localsplus_offset))
-#endif // CYTHON_FAST_PYCALL
+#endif
+#endif
 #endif
 
-/* PyObjectCall2Args.proto */
-static CYTHON_UNUSED PyObject* __Pyx_PyObject_Call2Args(PyObject* function, PyObject* arg1, PyObject* arg2);
+/* PyObjectCall.proto */
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw);
+#else
+#define __Pyx_PyObject_Call(func, arg, kw) PyObject_Call(func, arg, kw)
+#endif
 
 /* PyObjectCallMethO.proto */
 #if CYTHON_COMPILING_IN_CPYTHON
 static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg);
 #endif
 
-/* PyObjectCallOneArg.proto */
-static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg);
+/* PyObjectFastCall.proto */
+#define __Pyx_PyObject_FastCall(func, args, nargs)  __Pyx_PyObject_FastCallDict(func, args, (size_t)(nargs), NULL)
+static CYTHON_INLINE PyObject* __Pyx_PyObject_FastCallDict(PyObject *func, PyObject **args, size_t nargs, PyObject *kwargs);
 
-/* IncludeStringH.proto */
-#include <string.h>
+/* RaiseUnexpectedTypeError.proto */
+static int __Pyx_RaiseUnexpectedTypeError(const char *expected, PyObject *obj);
 
-/* BytesEquals.proto */
-static CYTHON_INLINE int __Pyx_PyBytes_Equals(PyObject* s1, PyObject* s2, int equals);
+/* GCCDiagnostics.proto */
+#if !defined(__INTEL_COMPILER) && defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))
+#define __Pyx_HAS_GCC_DIAGNOSTIC
+#endif
 
-/* UnicodeEquals.proto */
-static CYTHON_INLINE int __Pyx_PyUnicode_Equals(PyObject* s1, PyObject* s2, int equals);
+/* BuildPyUnicode.proto */
+static PyObject* __Pyx_PyUnicode_BuildFromAscii(Py_ssize_t ulength, char* chars, int clength,
+                                                int prepend_sign, char padding_char);
+
+/* CIntToPyUnicode.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyUnicode_From_int(int value, Py_ssize_t width, char padding_char, char format_char);
+
+/* CIntToPyUnicode.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyUnicode_From_Py_ssize_t(Py_ssize_t value, Py_ssize_t width, char padding_char, char format_char);
+
+/* JoinPyUnicode.proto */
+static PyObject* __Pyx_PyUnicode_Join(PyObject* value_tuple, Py_ssize_t value_count, Py_ssize_t result_ulength,
+                                      Py_UCS4 max_char);
 
 /* StrEquals.proto */
 #if PY_MAJOR_VERSION >= 3
@@ -1387,14 +2060,29 @@ static CYTHON_INLINE int __Pyx_PyUnicode_Equals(PyObject* s1, PyObject* s2, int
 #define __Pyx_PyString_Equals __Pyx_PyBytes_Equals
 #endif
 
-/* DivInt[Py_ssize_t].proto */
-static CYTHON_INLINE Py_ssize_t __Pyx_div_Py_ssize_t(Py_ssize_t, Py_ssize_t);
-
-/* UnaryNegOverflows.proto */
-#define UNARY_NEG_WOULD_OVERFLOW(x)\
-        (((x) < 0) & ((unsigned long)(x) == 0-(unsigned long)(x)))
+/* PyObjectFormatSimple.proto */
+#if CYTHON_COMPILING_IN_PYPY
+    #define __Pyx_PyObject_FormatSimple(s, f) (\
+        likely(PyUnicode_CheckExact(s)) ? (Py_INCREF(s), s) :\
+        PyObject_Format(s, f))
+#elif PY_MAJOR_VERSION < 3
+    #define __Pyx_PyObject_FormatSimple(s, f) (\
+        likely(PyUnicode_CheckExact(s)) ? (Py_INCREF(s), s) :\
+        likely(PyString_CheckExact(s)) ? PyUnicode_FromEncodedObject(s, NULL, "strict") :\
+        PyObject_Format(s, f))
+#elif CYTHON_USE_TYPE_SLOTS
+    #define __Pyx_PyObject_FormatSimple(s, f) (\
+        likely(PyUnicode_CheckExact(s)) ? (Py_INCREF(s), s) :\
+        likely(PyLong_CheckExact(s)) ? PyLong_Type.tp_repr(s) :\
+        likely(PyFloat_CheckExact(s)) ? PyFloat_Type.tp_repr(s) :\
+        PyObject_Format(s, f))
+#else
+    #define __Pyx_PyObject_FormatSimple(s, f) (\
+        likely(PyUnicode_CheckExact(s)) ? (Py_INCREF(s), s) :\
+        PyObject_Format(s, f))
+#endif
 
-static CYTHON_UNUSED int __pyx_array_getbuffer(PyObject *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags); /*proto*/
+CYTHON_UNUSED static int __pyx_array_getbuffer(PyObject *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags); /*proto*/
 static PyObject *__pyx_array_get_memview(struct __pyx_array_obj *); /*proto*/
 /* GetAttr.proto */
 static CYTHON_INLINE PyObject *__Pyx_GetAttr(PyObject *, PyObject *);
@@ -1421,40 +2109,25 @@ static PyObject *__Pyx_GetItemInt_Generic(PyObject *o, PyObject* j);
 static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i,
                                                      int is_list, int wraparound, int boundscheck);
 
+/* PyObjectCallOneArg.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg);
+
 /* ObjectGetItem.proto */
 #if CYTHON_USE_TYPE_SLOTS
-static CYTHON_INLINE PyObject *__Pyx_PyObject_GetItem(PyObject *obj, PyObject* key);
+static CYTHON_INLINE PyObject *__Pyx_PyObject_GetItem(PyObject *obj, PyObject *key);
 #else
 #define __Pyx_PyObject_GetItem(obj, key)  PyObject_GetItem(obj, key)
 #endif
 
-/* decode_c_string_utf16.proto */
-static CYTHON_INLINE PyObject *__Pyx_PyUnicode_DecodeUTF16(const char *s, Py_ssize_t size, const char *errors) {
-    int byteorder = 0;
-    return PyUnicode_DecodeUTF16(s, size, errors, &byteorder);
-}
-static CYTHON_INLINE PyObject *__Pyx_PyUnicode_DecodeUTF16LE(const char *s, Py_ssize_t size, const char *errors) {
-    int byteorder = -1;
-    return PyUnicode_DecodeUTF16(s, size, errors, &byteorder);
-}
-static CYTHON_INLINE PyObject *__Pyx_PyUnicode_DecodeUTF16BE(const char *s, Py_ssize_t size, const char *errors) {
-    int byteorder = 1;
-    return PyUnicode_DecodeUTF16(s, size, errors, &byteorder);
-}
+/* KeywordStringCheck.proto */
+static int __Pyx_CheckKeywordStrings(PyObject *kw, const char* function_name, int kw_allowed);
 
-/* decode_c_string.proto */
-static CYTHON_INLINE PyObject* __Pyx_decode_c_string(
-         const char* cstring, Py_ssize_t start, Py_ssize_t stop,
-         const char* encoding, const char* errors,
-         PyObject* (*decode_func)(const char *s, Py_ssize_t size, const char *errors));
+/* DivInt[Py_ssize_t].proto */
+static CYTHON_INLINE Py_ssize_t __Pyx_div_Py_ssize_t(Py_ssize_t, Py_ssize_t);
 
-/* PyErrExceptionMatches.proto */
-#if CYTHON_FAST_THREAD_STATE
-#define __Pyx_PyErr_ExceptionMatches(err) __Pyx_PyErr_ExceptionMatchesInState(__pyx_tstate, err)
-static CYTHON_INLINE int __Pyx_PyErr_ExceptionMatchesInState(PyThreadState* tstate, PyObject* err);
-#else
-#define __Pyx_PyErr_ExceptionMatches(err)  PyErr_ExceptionMatches(err)
-#endif
+/* UnaryNegOverflows.proto */
+#define __Pyx_UNARY_NEG_WOULD_OVERFLOW(x)\
+        (((x) < 0) & ((unsigned long)(x) == 0-(unsigned long)(x)))
 
 /* GetAttr3.proto */
 static CYTHON_INLINE PyObject *__Pyx_GetAttr3(PyObject *, PyObject *, PyObject *);
@@ -1487,18 +2160,18 @@ static CYTHON_INLINE int __Pyx_object_dict_version_matches(PyObject* obj, PY_UIN
 
 /* GetModuleGlobalName.proto */
 #if CYTHON_USE_DICT_VERSIONS
-#define __Pyx_GetModuleGlobalName(var, name)  {\
+#define __Pyx_GetModuleGlobalName(var, name)  do {\
     static PY_UINT64_T __pyx_dict_version = 0;\
     static PyObject *__pyx_dict_cached_value = NULL;\
     (var) = (likely(__pyx_dict_version == __PYX_GET_DICT_VERSION(__pyx_d))) ?\
         (likely(__pyx_dict_cached_value) ? __Pyx_NewRef(__pyx_dict_cached_value) : __Pyx_GetBuiltinName(name)) :\
         __Pyx__GetModuleGlobalName(name, &__pyx_dict_version, &__pyx_dict_cached_value);\
-}
-#define __Pyx_GetModuleGlobalNameUncached(var, name)  {\
+} while(0)
+#define __Pyx_GetModuleGlobalNameUncached(var, name)  do {\
     PY_UINT64_T __pyx_dict_version;\
     PyObject *__pyx_dict_cached_value;\
     (var) = __Pyx__GetModuleGlobalName(name, &__pyx_dict_version, &__pyx_dict_cached_value);\
-}
+} while(0)
 static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_version, PyObject **dict_cached_value);
 #else
 #define __Pyx_GetModuleGlobalName(var, name)  (var) = __Pyx__GetModuleGlobalName(name)
@@ -1506,6 +2179,37 @@ static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_ve
 static CYTHON_INLINE PyObject *__Pyx__GetModuleGlobalName(PyObject *name);
 #endif
 
+/* AssertionsEnabled.proto */
+#if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX < 0x02070600 && !defined(Py_OptimizeFlag)
+  #define __Pyx_init_assertions_enabled()  (0)
+  #define __pyx_assertions_enabled()  (1)
+#elif CYTHON_COMPILING_IN_LIMITED_API  ||  (CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030C0000)
+  static int __pyx_assertions_enabled_flag;
+  #define __pyx_assertions_enabled() (__pyx_assertions_enabled_flag)
+  static int __Pyx_init_assertions_enabled(void) {
+    PyObject *builtins, *debug, *debug_str;
+    int flag;
+    builtins = PyEval_GetBuiltins();
+    if (!builtins) goto bad;
+    debug_str = PyUnicode_FromStringAndSize("__debug__", 9);
+    if (!debug_str) goto bad;
+    debug = PyObject_GetItem(builtins, debug_str);
+    Py_DECREF(debug_str);
+    if (!debug) goto bad;
+    flag = PyObject_IsTrue(debug);
+    Py_DECREF(debug);
+    if (flag == -1) goto bad;
+    __pyx_assertions_enabled_flag = flag;
+    return 0;
+  bad:
+    __pyx_assertions_enabled_flag = 1;
+    return -1;
+  }
+#else
+  #define __Pyx_init_assertions_enabled()  (0)
+  #define __pyx_assertions_enabled()  (!Py_OptimizeFlag)
+#endif
+
 /* RaiseTooManyValuesToUnpack.proto */
 static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected);
 
@@ -1519,7 +2223,7 @@ static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void);
 static CYTHON_INLINE int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type);
 
 /* GetTopmostException.proto */
-#if CYTHON_USE_EXC_INFO_STACK
+#if CYTHON_USE_EXC_INFO_STACK && CYTHON_FAST_THREAD_STATE
 static _PyErr_StackItem * __Pyx_PyErr_GetTopmostException(PyThreadState *tstate);
 #endif
 
@@ -1553,20 +2257,30 @@ static CYTHON_INLINE void __Pyx_ExceptionSwap(PyObject **type, PyObject **value,
 /* Import.proto */
 static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, int level);
 
+/* ImportDottedModule.proto */
+static PyObject *__Pyx_ImportDottedModule(PyObject *name, PyObject *parts_tuple);
+#if PY_MAJOR_VERSION >= 3
+static PyObject *__Pyx_ImportDottedModule_WalkParts(PyObject *module, PyObject *name, PyObject *parts_tuple);
+#endif
+
 /* FastTypeChecks.proto */
 #if CYTHON_COMPILING_IN_CPYTHON
 #define __Pyx_TypeCheck(obj, type) __Pyx_IsSubtype(Py_TYPE(obj), (PyTypeObject *)type)
+#define __Pyx_TypeCheck2(obj, type1, type2) __Pyx_IsAnySubtype2(Py_TYPE(obj), (PyTypeObject *)type1, (PyTypeObject *)type2)
 static CYTHON_INLINE int __Pyx_IsSubtype(PyTypeObject *a, PyTypeObject *b);
+static CYTHON_INLINE int __Pyx_IsAnySubtype2(PyTypeObject *cls, PyTypeObject *a, PyTypeObject *b);
 static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches(PyObject *err, PyObject *type);
 static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObject *type1, PyObject *type2);
 #else
 #define __Pyx_TypeCheck(obj, type) PyObject_TypeCheck(obj, (PyTypeObject *)type)
+#define __Pyx_TypeCheck2(obj, type1, type2) (PyObject_TypeCheck(obj, (PyTypeObject *)type1) || PyObject_TypeCheck(obj, (PyTypeObject *)type2))
 #define __Pyx_PyErr_GivenExceptionMatches(err, type) PyErr_GivenExceptionMatches(err, type)
 #define __Pyx_PyErr_GivenExceptionMatches2(err, type1, type2) (PyErr_GivenExceptionMatches(err, type1) || PyErr_GivenExceptionMatches(err, type2))
 #endif
+#define __Pyx_PyErr_ExceptionMatches2(err1, err2)  __Pyx_PyErr_GivenExceptionMatches2(__Pyx_PyErr_CurrentExceptionType(), err1, err2)
 #define __Pyx_PyException_Check(obj) __Pyx_TypeCheck(obj, PyExc_Exception)
 
-static CYTHON_UNUSED int __pyx_memoryview_getbuffer(PyObject *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags); /*proto*/
+CYTHON_UNUSED static int __pyx_memoryview_getbuffer(PyObject *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags); /*proto*/
 /* ListCompAppend.proto */
 #if CYTHON_USE_PYLIST_INTERNALS && CYTHON_ASSUME_SAFE_MACROS
 static CYTHON_INLINE int __Pyx_ListComp_Append(PyObject* list, PyObject* x) {
@@ -1574,7 +2288,11 @@ static CYTHON_INLINE int __Pyx_ListComp_Append(PyObject* list, PyObject* x) {
     Py_ssize_t len = Py_SIZE(list);
     if (likely(L->allocated > len)) {
         Py_INCREF(x);
+        #if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030d0000
+        L->ob_item[len] = x;
+        #else
         PyList_SET_ITEM(list, len, x);
+        #endif
         __Pyx_SET_SIZE(list, len + 1);
         return 0;
     }
@@ -1584,52 +2302,41 @@ static CYTHON_INLINE int __Pyx_ListComp_Append(PyObject* list, PyObject* x) {
 #define __Pyx_ListComp_Append(L,x) PyList_Append(L,x)
 #endif
 
-/* PyIntBinop.proto */
-#if !CYTHON_COMPILING_IN_PYPY
-static PyObject* __Pyx_PyInt_AddObjC(PyObject *op1, PyObject *op2, long intval, int inplace, int zerodivision_check);
-#else
-#define __Pyx_PyInt_AddObjC(op1, op2, intval, inplace, zerodivision_check)\
-    (inplace ? PyNumber_InPlaceAdd(op1, op2) : PyNumber_Add(op1, op2))
-#endif
-
-/* ListExtend.proto */
-static CYTHON_INLINE int __Pyx_PyList_Extend(PyObject* L, PyObject* v) {
-#if CYTHON_COMPILING_IN_CPYTHON
-    PyObject* none = _PyList_Extend((PyListObject*)L, v);
-    if (unlikely(!none))
-        return -1;
-    Py_DECREF(none);
-    return 0;
-#else
-    return PyList_SetSlice(L, PY_SSIZE_T_MAX, PY_SSIZE_T_MAX, v);
-#endif
-}
+/* PySequenceMultiply.proto */
+#define __Pyx_PySequence_Multiply_Left(mul, seq)  __Pyx_PySequence_Multiply(seq, mul)
+static CYTHON_INLINE PyObject* __Pyx_PySequence_Multiply(PyObject *seq, Py_ssize_t mul);
 
-/* ListAppend.proto */
-#if CYTHON_USE_PYLIST_INTERNALS && CYTHON_ASSUME_SAFE_MACROS
-static CYTHON_INLINE int __Pyx_PyList_Append(PyObject* list, PyObject* x) {
-    PyListObject* L = (PyListObject*) list;
-    Py_ssize_t len = Py_SIZE(list);
-    if (likely(L->allocated > len) & likely(len > (L->allocated >> 1))) {
-        Py_INCREF(x);
-        PyList_SET_ITEM(list, len, x);
-        __Pyx_SET_SIZE(list, len + 1);
-        return 0;
-    }
-    return PyList_Append(list, x);
-}
-#else
-#define __Pyx_PyList_Append(L,x) PyList_Append(L,x)
-#endif
+/* SetItemInt.proto */
+#define __Pyx_SetItemInt(o, i, v, type, is_signed, to_py_func, is_list, wraparound, boundscheck)\
+    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ?\
+    __Pyx_SetItemInt_Fast(o, (Py_ssize_t)i, v, is_list, wraparound, boundscheck) :\
+    (is_list ? (PyErr_SetString(PyExc_IndexError, "list assignment index out of range"), -1) :\
+               __Pyx_SetItemInt_Generic(o, to_py_func(i), v)))
+static int __Pyx_SetItemInt_Generic(PyObject *o, PyObject *j, PyObject *v);
+static CYTHON_INLINE int __Pyx_SetItemInt_Fast(PyObject *o, Py_ssize_t i, PyObject *v,
+                                               int is_list, int wraparound, int boundscheck);
+
+/* RaiseUnboundLocalError.proto */
+static CYTHON_INLINE void __Pyx_RaiseUnboundLocalError(const char *varname);
 
 /* DivInt[long].proto */
 static CYTHON_INLINE long __Pyx_div_long(long, long);
 
+/* PySequenceContains.proto */
+static CYTHON_INLINE int __Pyx_PySequence_ContainsTF(PyObject* item, PyObject* seq, int eq) {
+    int result = PySequence_Contains(seq, item);
+    return unlikely(result < 0) ? result : (result == (eq == Py_EQ));
+}
+
 /* ImportFrom.proto */
 static PyObject* __Pyx_ImportFrom(PyObject* module, PyObject* name);
 
 /* HasAttr.proto */
+#if __PYX_LIMITED_VERSION_HEX >= 0x030d00A1
+#define __Pyx_HasAttr(o, n)  PyObject_HasAttrWithError(o, n)
+#else
 static CYTHON_INLINE int __Pyx_HasAttr(PyObject *, PyObject *);
+#endif
 
 /* PyObject_GenericGetAttrNoDict.proto */
 #if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000
@@ -1645,14 +2352,186 @@ static PyObject* __Pyx_PyObject_GenericGetAttr(PyObject* obj, PyObject* attr_nam
 #define __Pyx_PyObject_GenericGetAttr PyObject_GenericGetAttr
 #endif
 
+/* IncludeStructmemberH.proto */
+#include <structmember.h>
+
+/* FixUpExtensionType.proto */
+#if CYTHON_USE_TYPE_SPECS
+static int __Pyx_fix_up_extension_type_from_spec(PyType_Spec *spec, PyTypeObject *type);
+#endif
+
+/* PyObjectCallNoArg.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallNoArg(PyObject *func);
+
+/* PyObjectGetMethod.proto */
+static int __Pyx_PyObject_GetMethod(PyObject *obj, PyObject *name, PyObject **method);
+
+/* PyObjectCallMethod0.proto */
+static PyObject* __Pyx_PyObject_CallMethod0(PyObject* obj, PyObject* method_name);
+
+/* ValidateBasesTuple.proto */
+#if CYTHON_COMPILING_IN_CPYTHON || CYTHON_COMPILING_IN_LIMITED_API || CYTHON_USE_TYPE_SPECS
+static int __Pyx_validate_bases_tuple(const char *type_name, Py_ssize_t dictoffset, PyObject *bases);
+#endif
+
+/* PyType_Ready.proto */
+CYTHON_UNUSED static int __Pyx_PyType_Ready(PyTypeObject *t);
+
 /* SetVTable.proto */
-static int __Pyx_SetVtable(PyObject *dict, void *vtable);
+static int __Pyx_SetVtable(PyTypeObject* typeptr , void* vtable);
 
-/* PyObjectGetAttrStrNoError.proto */
-static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStrNoError(PyObject* obj, PyObject* attr_name);
+/* GetVTable.proto */
+static void* __Pyx_GetVtable(PyTypeObject *type);
+
+/* MergeVTables.proto */
+#if !CYTHON_COMPILING_IN_LIMITED_API
+static int __Pyx_MergeVtables(PyTypeObject *type);
+#endif
 
 /* SetupReduce.proto */
+#if !CYTHON_COMPILING_IN_LIMITED_API
 static int __Pyx_setup_reduce(PyObject* type_obj);
+#endif
+
+/* FetchSharedCythonModule.proto */
+static PyObject *__Pyx_FetchSharedCythonABIModule(void);
+
+/* FetchCommonType.proto */
+#if !CYTHON_USE_TYPE_SPECS
+static PyTypeObject* __Pyx_FetchCommonType(PyTypeObject* type);
+#else
+static PyTypeObject* __Pyx_FetchCommonTypeFromSpec(PyObject *module, PyType_Spec *spec, PyObject *bases);
+#endif
+
+/* PyMethodNew.proto */
+#if CYTHON_COMPILING_IN_LIMITED_API
+static PyObject *__Pyx_PyMethod_New(PyObject *func, PyObject *self, PyObject *typ) {
+    PyObject *typesModule=NULL, *methodType=NULL, *result=NULL;
+    CYTHON_UNUSED_VAR(typ);
+    if (!self)
+        return __Pyx_NewRef(func);
+    typesModule = PyImport_ImportModule("types");
+    if (!typesModule) return NULL;
+    methodType = PyObject_GetAttrString(typesModule, "MethodType");
+    Py_DECREF(typesModule);
+    if (!methodType) return NULL;
+    result = PyObject_CallFunctionObjArgs(methodType, func, self, NULL);
+    Py_DECREF(methodType);
+    return result;
+}
+#elif PY_MAJOR_VERSION >= 3
+static PyObject *__Pyx_PyMethod_New(PyObject *func, PyObject *self, PyObject *typ) {
+    CYTHON_UNUSED_VAR(typ);
+    if (!self)
+        return __Pyx_NewRef(func);
+    return PyMethod_New(func, self);
+}
+#else
+    #define __Pyx_PyMethod_New PyMethod_New
+#endif
+
+/* PyVectorcallFastCallDict.proto */
+#if CYTHON_METH_FASTCALL
+static CYTHON_INLINE PyObject *__Pyx_PyVectorcall_FastCallDict(PyObject *func, __pyx_vectorcallfunc vc, PyObject *const *args, size_t nargs, PyObject *kw);
+#endif
+
+/* CythonFunctionShared.proto */
+#define __Pyx_CyFunction_USED
+#define __Pyx_CYFUNCTION_STATICMETHOD  0x01
+#define __Pyx_CYFUNCTION_CLASSMETHOD   0x02
+#define __Pyx_CYFUNCTION_CCLASS        0x04
+#define __Pyx_CYFUNCTION_COROUTINE     0x08
+#define __Pyx_CyFunction_GetClosure(f)\
+    (((__pyx_CyFunctionObject *) (f))->func_closure)
+#if PY_VERSION_HEX < 0x030900B1 || CYTHON_COMPILING_IN_LIMITED_API
+  #define __Pyx_CyFunction_GetClassObj(f)\
+      (((__pyx_CyFunctionObject *) (f))->func_classobj)
+#else
+  #define __Pyx_CyFunction_GetClassObj(f)\
+      ((PyObject*) ((PyCMethodObject *) (f))->mm_class)
+#endif
+#define __Pyx_CyFunction_SetClassObj(f, classobj)\
+    __Pyx__CyFunction_SetClassObj((__pyx_CyFunctionObject *) (f), (classobj))
+#define __Pyx_CyFunction_Defaults(type, f)\
+    ((type *)(((__pyx_CyFunctionObject *) (f))->defaults))
+#define __Pyx_CyFunction_SetDefaultsGetter(f, g)\
+    ((__pyx_CyFunctionObject *) (f))->defaults_getter = (g)
+typedef struct {
+#if CYTHON_COMPILING_IN_LIMITED_API
+    PyObject_HEAD
+    PyObject *func;
+#elif PY_VERSION_HEX < 0x030900B1
+    PyCFunctionObject func;
+#else
+    PyCMethodObject func;
+#endif
+#if CYTHON_BACKPORT_VECTORCALL
+    __pyx_vectorcallfunc func_vectorcall;
+#endif
+#if PY_VERSION_HEX < 0x030500A0 || CYTHON_COMPILING_IN_LIMITED_API
+    PyObject *func_weakreflist;
+#endif
+    PyObject *func_dict;
+    PyObject *func_name;
+    PyObject *func_qualname;
+    PyObject *func_doc;
+    PyObject *func_globals;
+    PyObject *func_code;
+    PyObject *func_closure;
+#if PY_VERSION_HEX < 0x030900B1 || CYTHON_COMPILING_IN_LIMITED_API
+    PyObject *func_classobj;
+#endif
+    void *defaults;
+    int defaults_pyobjects;
+    size_t defaults_size;
+    int flags;
+    PyObject *defaults_tuple;
+    PyObject *defaults_kwdict;
+    PyObject *(*defaults_getter)(PyObject *);
+    PyObject *func_annotations;
+    PyObject *func_is_coroutine;
+} __pyx_CyFunctionObject;
+#undef __Pyx_CyOrPyCFunction_Check
+#define __Pyx_CyFunction_Check(obj)  __Pyx_TypeCheck(obj, __pyx_CyFunctionType)
+#define __Pyx_CyOrPyCFunction_Check(obj)  __Pyx_TypeCheck2(obj, __pyx_CyFunctionType, &PyCFunction_Type)
+#define __Pyx_CyFunction_CheckExact(obj)  __Pyx_IS_TYPE(obj, __pyx_CyFunctionType)
+static CYTHON_INLINE int __Pyx__IsSameCyOrCFunction(PyObject *func, void *cfunc);
+#undef __Pyx_IsSameCFunction
+#define __Pyx_IsSameCFunction(func, cfunc)   __Pyx__IsSameCyOrCFunction(func, cfunc)
+static PyObject *__Pyx_CyFunction_Init(__pyx_CyFunctionObject* op, PyMethodDef *ml,
+                                      int flags, PyObject* qualname,
+                                      PyObject *closure,
+                                      PyObject *module, PyObject *globals,
+                                      PyObject* code);
+static CYTHON_INLINE void __Pyx__CyFunction_SetClassObj(__pyx_CyFunctionObject* f, PyObject* classobj);
+static CYTHON_INLINE void *__Pyx_CyFunction_InitDefaults(PyObject *m,
+                                                         size_t size,
+                                                         int pyobjects);
+static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsTuple(PyObject *m,
+                                                            PyObject *tuple);
+static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsKwDict(PyObject *m,
+                                                             PyObject *dict);
+static CYTHON_INLINE void __Pyx_CyFunction_SetAnnotationsDict(PyObject *m,
+                                                              PyObject *dict);
+static int __pyx_CyFunction_init(PyObject *module);
+#if CYTHON_METH_FASTCALL
+static PyObject * __Pyx_CyFunction_Vectorcall_NOARGS(PyObject *func, PyObject *const *args, size_t nargsf, PyObject *kwnames);
+static PyObject * __Pyx_CyFunction_Vectorcall_O(PyObject *func, PyObject *const *args, size_t nargsf, PyObject *kwnames);
+static PyObject * __Pyx_CyFunction_Vectorcall_FASTCALL_KEYWORDS(PyObject *func, PyObject *const *args, size_t nargsf, PyObject *kwnames);
+static PyObject * __Pyx_CyFunction_Vectorcall_FASTCALL_KEYWORDS_METHOD(PyObject *func, PyObject *const *args, size_t nargsf, PyObject *kwnames);
+#if CYTHON_BACKPORT_VECTORCALL
+#define __Pyx_CyFunction_func_vectorcall(f) (((__pyx_CyFunctionObject*)f)->func_vectorcall)
+#else
+#define __Pyx_CyFunction_func_vectorcall(f) (((PyCFunctionObject*)f)->vectorcall)
+#endif
+#endif
+
+/* CythonFunction.proto */
+static PyObject *__Pyx_CyFunction_New(PyMethodDef *ml,
+                                      int flags, PyObject* qualname,
+                                      PyObject *closure,
+                                      PyObject *module, PyObject *globals,
+                                      PyObject* code);
 
 /* CLineInTraceback.proto */
 #ifdef CYTHON_CLINE_IN_TRACEBACK
@@ -1662,6 +2541,7 @@ static int __Pyx_CLineForTraceback(PyThreadState *tstate, int c_line);
 #endif
 
 /* CodeObjectCache.proto */
+#if !CYTHON_COMPILING_IN_LIMITED_API
 typedef struct {
     PyCodeObject* code_object;
     int code_line;
@@ -1675,6 +2555,7 @@ static struct __Pyx_CodeObjectCache __pyx_code_cache = {0,0,NULL};
 static int __pyx_bisect_code_objects(__Pyx_CodeObjectCacheEntry* entries, int count, int code_line);
 static PyCodeObject *__pyx_find_code_object(int code_line);
 static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object);
+#endif
 
 /* AddTraceback.proto */
 static void __Pyx_AddTraceback(const char *funcname, int c_line,
@@ -1711,9 +2592,6 @@ static int __pyx_slices_overlap(__Pyx_memviewslice *slice1,
                                 __Pyx_memviewslice *slice2,
                                 int ndim, size_t itemsize);
 
-/* Capsule.proto */
-static CYTHON_INLINE PyObject *__pyx_capsule_create(void *p, const char *sig);
-
 /* IsLittleEndian.proto */
 static CYTHON_INLINE int __Pyx_Is_Little_Endian(void);
 
@@ -1738,7 +2616,7 @@ static int __Pyx_ValidateAndInit_memviewslice(
                 PyObject *original_obj);
 
 /* ObjectToMemviewSlice.proto */
-static CYTHON_INLINE __Pyx_memviewslice __Pyx_PyObject_to_MemoryviewSlice_dsdsds_int(PyObject *, int writable_flag);
+static CYTHON_INLINE __Pyx_memviewslice __Pyx_PyObject_to_MemoryviewSlice_dsdsds_bint(PyObject *, int writable_flag);
 
 /* ObjectToMemviewSlice.proto */
 static CYTHON_INLINE __Pyx_memviewslice __Pyx_PyObject_to_MemoryviewSlice_d_d_dc_float(PyObject *, int writable_flag);
@@ -1746,11 +2624,6 @@ static CYTHON_INLINE __Pyx_memviewslice __Pyx_PyObject_to_MemoryviewSlice_d_d_dc
 /* ObjectToMemviewSlice.proto */
 static CYTHON_INLINE __Pyx_memviewslice __Pyx_PyObject_to_MemoryviewSlice_d_dc_float(PyObject *, int writable_flag);
 
-/* GCCDiagnostics.proto */
-#if defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))
-#define __Pyx_HAS_GCC_DIAGNOSTIC
-#endif
-
 /* MemviewSliceCopyTemplate.proto */
 static __Pyx_memviewslice
 __pyx_memoryview_copy_new_contig(const __Pyx_memviewslice *from_mvs,
@@ -1758,6 +2631,31 @@ __pyx_memoryview_copy_new_contig(const __Pyx_memviewslice *from_mvs,
                                  size_t sizeof_dtype, int contig_flag,
                                  int dtype_is_object);
 
+/* MemviewSliceInit.proto */
+#define __Pyx_BUF_MAX_NDIMS %(BUF_MAX_NDIMS)d
+#define __Pyx_MEMVIEW_DIRECT   1
+#define __Pyx_MEMVIEW_PTR      2
+#define __Pyx_MEMVIEW_FULL     4
+#define __Pyx_MEMVIEW_CONTIG   8
+#define __Pyx_MEMVIEW_STRIDED  16
+#define __Pyx_MEMVIEW_FOLLOW   32
+#define __Pyx_IS_C_CONTIG 1
+#define __Pyx_IS_F_CONTIG 2
+static int __Pyx_init_memviewslice(
+                struct __pyx_memoryview_obj *memview,
+                int ndim,
+                __Pyx_memviewslice *memviewslice,
+                int memview_is_new_reference);
+static CYTHON_INLINE int __pyx_add_acquisition_count_locked(
+    __pyx_atomic_int_type *acquisition_count, PyThread_type_lock lock);
+static CYTHON_INLINE int __pyx_sub_acquisition_count_locked(
+    __pyx_atomic_int_type *acquisition_count, PyThread_type_lock lock);
+#define __pyx_get_slice_count_pointer(memview) (&memview->acquisition_count)
+#define __PYX_INC_MEMVIEW(slice, have_gil) __Pyx_INC_MEMVIEW(slice, have_gil, __LINE__)
+#define __PYX_XCLEAR_MEMVIEW(slice, have_gil) __Pyx_XCLEAR_MEMVIEW(slice, have_gil, __LINE__)
+static CYTHON_INLINE void __Pyx_INC_MEMVIEW(__Pyx_memviewslice *, int, int);
+static CYTHON_INLINE void __Pyx_XCLEAR_MEMVIEW(__Pyx_memviewslice *, int, int);
+
 /* CIntFromPy.proto */
 static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *);
 
@@ -1773,12 +2671,27 @@ static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *);
 /* CIntFromPy.proto */
 static CYTHON_INLINE char __Pyx_PyInt_As_char(PyObject *);
 
+/* FormatTypeName.proto */
+#if CYTHON_COMPILING_IN_LIMITED_API
+typedef PyObject *__Pyx_TypeName;
+#define __Pyx_FMT_TYPENAME "%U"
+static __Pyx_TypeName __Pyx_PyType_GetName(PyTypeObject* tp);
+#define __Pyx_DECREF_TypeName(obj) Py_XDECREF(obj)
+#else
+typedef const char *__Pyx_TypeName;
+#define __Pyx_FMT_TYPENAME "%.200s"
+#define __Pyx_PyType_GetName(tp) ((tp)->tp_name)
+#define __Pyx_DECREF_TypeName(obj)
+#endif
+
 /* CheckBinaryVersion.proto */
-static int __Pyx_check_binary_version(void);
+static unsigned long __Pyx_get_runtime_version(void);
+static int __Pyx_check_binary_version(unsigned long ct_version, unsigned long rt_version, int allow_newer);
 
 /* InitStrings.proto */
 static int __Pyx_InitStrings(__Pyx_StringTabEntry *t);
 
+/* #### Code section: module_declarations ### */
 static PyObject *__pyx_array_get_memview(struct __pyx_array_obj *__pyx_v_self); /* proto*/
 static char *__pyx_memoryview_get_item_pointer(struct __pyx_memoryview_obj *__pyx_v_self, PyObject *__pyx_v_index); /* proto*/
 static PyObject *__pyx_memoryview_is_slice(struct __pyx_memoryview_obj *__pyx_v_self, PyObject *__pyx_v_obj); /* proto*/
@@ -1787,20 +2700,21 @@ static PyObject *__pyx_memoryview_setitem_slice_assign_scalar(struct __pyx_memor
 static PyObject *__pyx_memoryview_setitem_indexed(struct __pyx_memoryview_obj *__pyx_v_self, PyObject *__pyx_v_index, PyObject *__pyx_v_value); /* proto*/
 static PyObject *__pyx_memoryview_convert_item_to_object(struct __pyx_memoryview_obj *__pyx_v_self, char *__pyx_v_itemp); /* proto*/
 static PyObject *__pyx_memoryview_assign_item_from_object(struct __pyx_memoryview_obj *__pyx_v_self, char *__pyx_v_itemp, PyObject *__pyx_v_value); /* proto*/
+static PyObject *__pyx_memoryview__get_base(struct __pyx_memoryview_obj *__pyx_v_self); /* proto*/
 static PyObject *__pyx_memoryviewslice_convert_item_to_object(struct __pyx_memoryviewslice_obj *__pyx_v_self, char *__pyx_v_itemp); /* proto*/
 static PyObject *__pyx_memoryviewslice_assign_item_from_object(struct __pyx_memoryviewslice_obj *__pyx_v_self, char *__pyx_v_itemp, PyObject *__pyx_v_value); /* proto*/
+static PyObject *__pyx_memoryviewslice__get_base(struct __pyx_memoryviewslice_obj *__pyx_v_self); /* proto*/
 
-/* Module declarations from 'cython.view' */
+/* Module declarations from "cython.view" */
 
-/* Module declarations from 'cython' */
+/* Module declarations from "cython.dataclasses" */
 
-/* Module declarations from 'libc.math' */
+/* Module declarations from "cython" */
 
-/* Module declarations from 'voxelize' */
-static PyTypeObject *__pyx_array_type = 0;
-static PyTypeObject *__pyx_MemviewEnum_type = 0;
-static PyTypeObject *__pyx_memoryview_type = 0;
-static PyTypeObject *__pyx_memoryviewslice_type = 0;
+/* Module declarations from "libc.math" */
+
+/* Module declarations from "voxelize" */
+static PyObject *__pyx_collections_abc_Sequence = 0;
 static PyObject *generic = 0;
 static PyObject *strided = 0;
 static PyObject *indirect = 0;
@@ -1810,12 +2724,12 @@ static int __pyx_memoryview_thread_locks_used;
 static PyThread_type_lock __pyx_memoryview_thread_locks[8];
 static int __pyx_f_8voxelize_voxelize_mesh_(__Pyx_memviewslice, __Pyx_memviewslice, int __pyx_skip_dispatch); /*proto*/
 static int __pyx_f_8voxelize_voxelize_triangle_(__Pyx_memviewslice, __Pyx_memviewslice, int __pyx_skip_dispatch); /*proto*/
+static int __pyx_array_allocate_buffer(struct __pyx_array_obj *); /*proto*/
 static struct __pyx_array_obj *__pyx_array_new(PyObject *, Py_ssize_t, char *, char *, char *); /*proto*/
-static void *__pyx_align_pointer(void *, size_t); /*proto*/
 static PyObject *__pyx_memoryview_new(PyObject *, int, int, __Pyx_TypeInfo *); /*proto*/
 static CYTHON_INLINE int __pyx_memoryview_check(PyObject *); /*proto*/
 static PyObject *_unellipsify(PyObject *, int); /*proto*/
-static PyObject *assert_direct_dimensions(Py_ssize_t *, int); /*proto*/
+static int assert_direct_dimensions(Py_ssize_t *, int); /*proto*/
 static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_obj *, PyObject *); /*proto*/
 static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *, Py_ssize_t, Py_ssize_t, Py_ssize_t, int, int, int *, Py_ssize_t, Py_ssize_t, Py_ssize_t, int, int, int, int); /*proto*/
 static char *__pyx_pybuffer_index(Py_buffer *, char *, Py_ssize_t, Py_ssize_t); /*proto*/
@@ -1833,8 +2747,9 @@ static Py_ssize_t __pyx_memoryview_slice_get_size(__Pyx_memviewslice *, int); /*
 static Py_ssize_t __pyx_fill_contig_strides_array(Py_ssize_t *, Py_ssize_t *, Py_ssize_t, int, char); /*proto*/
 static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *, __Pyx_memviewslice *, char, int); /*proto*/
 static int __pyx_memoryview_err_extents(int, Py_ssize_t, Py_ssize_t); /*proto*/
-static int __pyx_memoryview_err_dim(PyObject *, char *, int); /*proto*/
-static int __pyx_memoryview_err(PyObject *, char *); /*proto*/
+static int __pyx_memoryview_err_dim(PyObject *, PyObject *, int); /*proto*/
+static int __pyx_memoryview_err(PyObject *, PyObject *); /*proto*/
+static int __pyx_memoryview_err_no_memory(void); /*proto*/
 static int __pyx_memoryview_copy_contents(__Pyx_memviewslice, __Pyx_memviewslice, int, int, int); /*proto*/
 static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *, int, int); /*proto*/
 static void __pyx_memoryview_refcount_copying(__Pyx_memviewslice *, int, int, int); /*proto*/
@@ -1843,14 +2758,19 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *, Py_ssize_t *, Py_
 static void __pyx_memoryview_slice_assign_scalar(__Pyx_memviewslice *, int, size_t, void *, int); /*proto*/
 static void __pyx_memoryview__slice_assign_scalar(char *, Py_ssize_t *, Py_ssize_t *, int, size_t, void *); /*proto*/
 static PyObject *__pyx_unpickle_Enum__set_state(struct __pyx_MemviewEnum_obj *, PyObject *); /*proto*/
-static __Pyx_TypeInfo __Pyx_TypeInfo_int = { "bint", NULL, sizeof(int), { 0 }, 0, IS_UNSIGNED(int) ? 'U' : 'I', IS_UNSIGNED(int), 0 };
+/* #### Code section: typeinfo ### */
+static __Pyx_TypeInfo __Pyx_TypeInfo_bint = { "bint", NULL, sizeof(int), { 0 }, 0, __PYX_IS_UNSIGNED(int) ? 'U' : 'I', __PYX_IS_UNSIGNED(int), 0 };
 static __Pyx_TypeInfo __Pyx_TypeInfo_float = { "float", NULL, sizeof(float), { 0 }, 0, 'R', 0, 0 };
+/* #### Code section: before_global_var ### */
 #define __Pyx_MODULE_NAME "voxelize"
 extern int __pyx_module_is_main_voxelize;
 int __pyx_module_is_main_voxelize = 0;
 
-/* Implementation of 'voxelize' */
+/* Implementation of "voxelize" */
+/* #### Code section: global_var ### */
+static PyObject *__pyx_builtin_AssertionError;
 static PyObject *__pyx_builtin_range;
+static PyObject *__pyx_builtin___import__;
 static PyObject *__pyx_builtin_ValueError;
 static PyObject *__pyx_builtin_MemoryError;
 static PyObject *__pyx_builtin_enumerate;
@@ -1858,12 +2778,24 @@ static PyObject *__pyx_builtin_TypeError;
 static PyObject *__pyx_builtin_Ellipsis;
 static PyObject *__pyx_builtin_id;
 static PyObject *__pyx_builtin_IndexError;
+/* #### Code section: string_decls ### */
+static const char __pyx_k_[] = ": ";
 static const char __pyx_k_O[] = "O";
 static const char __pyx_k_c[] = "c";
+static const char __pyx_k__2[] = ".";
+static const char __pyx_k__3[] = "*";
+static const char __pyx_k__6[] = "'";
+static const char __pyx_k__7[] = ")";
+static const char __pyx_k_gc[] = "gc";
 static const char __pyx_k_id[] = "id";
+static const char __pyx_k__24[] = "?";
+static const char __pyx_k_abc[] = "abc";
+static const char __pyx_k_and[] = " and ";
+static const char __pyx_k_got[] = " (got ";
 static const char __pyx_k_new[] = "__new__";
 static const char __pyx_k_obj[] = "obj";
 static const char __pyx_k_occ[] = "occ";
+static const char __pyx_k_sys[] = "sys";
 static const char __pyx_k_base[] = "base";
 static const char __pyx_k_dict[] = "__dict__";
 static const char __pyx_k_main[] = "__main__";
@@ -1872,17 +2804,21 @@ static const char __pyx_k_name[] = "name";
 static const char __pyx_k_ndim[] = "ndim";
 static const char __pyx_k_pack[] = "pack";
 static const char __pyx_k_size[] = "size";
+static const char __pyx_k_spec[] = "__spec__";
 static const char __pyx_k_step[] = "step";
 static const char __pyx_k_stop[] = "stop";
 static const char __pyx_k_test[] = "__test__";
 static const char __pyx_k_ASCII[] = "ASCII";
 static const char __pyx_k_class[] = "__class__";
+static const char __pyx_k_count[] = "count";
 static const char __pyx_k_error[] = "error";
 static const char __pyx_k_faces[] = "faces";
 static const char __pyx_k_flags[] = "flags";
+static const char __pyx_k_index[] = "index";
 static const char __pyx_k_range[] = "range";
 static const char __pyx_k_shape[] = "shape";
 static const char __pyx_k_start[] = "start";
+static const char __pyx_k_enable[] = "enable";
 static const char __pyx_k_encode[] = "encode";
 static const char __pyx_k_format[] = "format";
 static const char __pyx_k_import[] = "__import__";
@@ -1892,16 +2828,21 @@ static const char __pyx_k_reduce[] = "__reduce__";
 static const char __pyx_k_struct[] = "struct";
 static const char __pyx_k_unpack[] = "unpack";
 static const char __pyx_k_update[] = "update";
+static const char __pyx_k_disable[] = "disable";
 static const char __pyx_k_fortran[] = "fortran";
 static const char __pyx_k_memview[] = "memview";
 static const char __pyx_k_Ellipsis[] = "Ellipsis";
+static const char __pyx_k_Sequence[] = "Sequence";
 static const char __pyx_k_getstate[] = "__getstate__";
 static const char __pyx_k_itemsize[] = "itemsize";
 static const char __pyx_k_pyx_type[] = "__pyx_type";
+static const char __pyx_k_register[] = "register";
 static const char __pyx_k_setstate[] = "__setstate__";
 static const char __pyx_k_triverts[] = "triverts";
+static const char __pyx_k_voxelize[] = "voxelize";
 static const char __pyx_k_TypeError[] = "TypeError";
 static const char __pyx_k_enumerate[] = "enumerate";
+static const char __pyx_k_isenabled[] = "isenabled";
 static const char __pyx_k_pyx_state[] = "__pyx_state";
 static const char __pyx_k_reduce_ex[] = "__reduce_ex__";
 static const char __pyx_k_IndexError[] = "IndexError";
@@ -1910,134 +2851,58 @@ static const char __pyx_k_pyx_result[] = "__pyx_result";
 static const char __pyx_k_pyx_vtable[] = "__pyx_vtable__";
 static const char __pyx_k_MemoryError[] = "MemoryError";
 static const char __pyx_k_PickleError[] = "PickleError";
+static const char __pyx_k_collections[] = "collections";
 static const char __pyx_k_occupancies[] = "occupancies";
+static const char __pyx_k_initializing[] = "_initializing";
+static const char __pyx_k_is_coroutine[] = "_is_coroutine";
 static const char __pyx_k_pyx_checksum[] = "__pyx_checksum";
-static const char __pyx_k_stringsource[] = "stringsource";
-static const char __pyx_k_pyx_getbuffer[] = "__pyx_getbuffer";
+static const char __pyx_k_stringsource[] = "<stringsource>";
+static const char __pyx_k_version_info[] = "version_info";
+static const char __pyx_k_voxelize_pyx[] = "voxelize.pyx";
+static const char __pyx_k_class_getitem[] = "__class_getitem__";
 static const char __pyx_k_reduce_cython[] = "__reduce_cython__";
+static const char __pyx_k_voxelize_mesh[] = "voxelize_mesh_";
+static const char __pyx_k_AssertionError[] = "AssertionError";
 static const char __pyx_k_View_MemoryView[] = "View.MemoryView";
 static const char __pyx_k_allocate_buffer[] = "allocate_buffer";
+static const char __pyx_k_collections_abc[] = "collections.abc";
 static const char __pyx_k_dtype_is_object[] = "dtype_is_object";
 static const char __pyx_k_pyx_PickleError[] = "__pyx_PickleError";
 static const char __pyx_k_setstate_cython[] = "__setstate_cython__";
 static const char __pyx_k_pyx_unpickle_Enum[] = "__pyx_unpickle_Enum";
+static const char __pyx_k_voxelize_triangle[] = "voxelize_triangle_";
+static const char __pyx_k_asyncio_coroutines[] = "asyncio.coroutines";
 static const char __pyx_k_cline_in_traceback[] = "cline_in_traceback";
 static const char __pyx_k_strided_and_direct[] = "<strided and direct>";
 static const char __pyx_k_strided_and_indirect[] = "<strided and indirect>";
+static const char __pyx_k_Invalid_shape_in_axis[] = "Invalid shape in axis ";
 static const char __pyx_k_contiguous_and_direct[] = "<contiguous and direct>";
+static const char __pyx_k_Cannot_index_with_type[] = "Cannot index with type '";
 static const char __pyx_k_MemoryView_of_r_object[] = "<MemoryView of %r object>";
 static const char __pyx_k_MemoryView_of_r_at_0x_x[] = "<MemoryView of %r at 0x%x>";
 static const char __pyx_k_contiguous_and_indirect[] = "<contiguous and indirect>";
-static const char __pyx_k_Cannot_index_with_type_s[] = "Cannot index with type '%s'";
-static const char __pyx_k_Invalid_shape_in_axis_d_d[] = "Invalid shape in axis %d: %d.";
+static const char __pyx_k_Dimension_d_is_not_direct[] = "Dimension %d is not direct";
+static const char __pyx_k_Index_out_of_bounds_axis_d[] = "Index out of bounds (axis %d)";
+static const char __pyx_k_Step_may_not_be_zero_axis_d[] = "Step may not be zero (axis %d)";
 static const char __pyx_k_itemsize_0_for_cython_array[] = "itemsize <= 0 for cython.array";
 static const char __pyx_k_unable_to_allocate_array_data[] = "unable to allocate array data.";
 static const char __pyx_k_strided_and_direct_or_indirect[] = "<strided and direct or indirect>";
+static const char __pyx_k_All_dimensions_preceding_dimensi[] = "All dimensions preceding dimension %d must be indexed and not sliced";
 static const char __pyx_k_Buffer_view_does_not_expose_stri[] = "Buffer view does not expose strides";
 static const char __pyx_k_Can_only_create_a_buffer_that_is[] = "Can only create a buffer that is contiguous in memory.";
 static const char __pyx_k_Cannot_assign_to_read_only_memor[] = "Cannot assign to read-only memoryview";
 static const char __pyx_k_Cannot_create_writable_memory_vi[] = "Cannot create writable memory view from read-only memoryview";
+static const char __pyx_k_Cannot_transpose_memoryview_with[] = "Cannot transpose memoryview with indirect dimensions";
 static const char __pyx_k_Empty_shape_tuple_for_cython_arr[] = "Empty shape tuple for cython.array";
-static const char __pyx_k_Incompatible_checksums_s_vs_0xb0[] = "Incompatible checksums (%s vs 0xb068931 = (name))";
+static const char __pyx_k_Incompatible_checksums_0x_x_vs_0[] = "Incompatible checksums (0x%x vs (0x82a3537, 0x6ae9995, 0xb068931) = (name))";
 static const char __pyx_k_Indirect_dimensions_not_supporte[] = "Indirect dimensions not supported";
-static const char __pyx_k_Invalid_mode_expected_c_or_fortr[] = "Invalid mode, expected 'c' or 'fortran', got %s";
-static const char __pyx_k_Out_of_bounds_on_buffer_access_a[] = "Out of bounds on buffer access (axis %d)";
+static const char __pyx_k_Invalid_mode_expected_c_or_fortr[] = "Invalid mode, expected 'c' or 'fortran', got ";
+static const char __pyx_k_Out_of_bounds_on_buffer_access_a[] = "Out of bounds on buffer access (axis ";
 static const char __pyx_k_Unable_to_convert_item_to_object[] = "Unable to convert item to object";
-static const char __pyx_k_got_differing_extents_in_dimensi[] = "got differing extents in dimension %d (got %d and %d)";
+static const char __pyx_k_got_differing_extents_in_dimensi[] = "got differing extents in dimension ";
 static const char __pyx_k_no_default___reduce___due_to_non[] = "no default __reduce__ due to non-trivial __cinit__";
 static const char __pyx_k_unable_to_allocate_shape_and_str[] = "unable to allocate shape and strides.";
-static PyObject *__pyx_n_s_ASCII;
-static PyObject *__pyx_kp_s_Buffer_view_does_not_expose_stri;
-static PyObject *__pyx_kp_s_Can_only_create_a_buffer_that_is;
-static PyObject *__pyx_kp_s_Cannot_assign_to_read_only_memor;
-static PyObject *__pyx_kp_s_Cannot_create_writable_memory_vi;
-static PyObject *__pyx_kp_s_Cannot_index_with_type_s;
-static PyObject *__pyx_n_s_Ellipsis;
-static PyObject *__pyx_kp_s_Empty_shape_tuple_for_cython_arr;
-static PyObject *__pyx_kp_s_Incompatible_checksums_s_vs_0xb0;
-static PyObject *__pyx_n_s_IndexError;
-static PyObject *__pyx_kp_s_Indirect_dimensions_not_supporte;
-static PyObject *__pyx_kp_s_Invalid_mode_expected_c_or_fortr;
-static PyObject *__pyx_kp_s_Invalid_shape_in_axis_d_d;
-static PyObject *__pyx_n_s_MemoryError;
-static PyObject *__pyx_kp_s_MemoryView_of_r_at_0x_x;
-static PyObject *__pyx_kp_s_MemoryView_of_r_object;
-static PyObject *__pyx_n_b_O;
-static PyObject *__pyx_kp_s_Out_of_bounds_on_buffer_access_a;
-static PyObject *__pyx_n_s_PickleError;
-static PyObject *__pyx_n_s_TypeError;
-static PyObject *__pyx_kp_s_Unable_to_convert_item_to_object;
-static PyObject *__pyx_n_s_ValueError;
-static PyObject *__pyx_n_s_View_MemoryView;
-static PyObject *__pyx_n_s_allocate_buffer;
-static PyObject *__pyx_n_s_base;
-static PyObject *__pyx_n_s_c;
-static PyObject *__pyx_n_u_c;
-static PyObject *__pyx_n_s_class;
-static PyObject *__pyx_n_s_cline_in_traceback;
-static PyObject *__pyx_kp_s_contiguous_and_direct;
-static PyObject *__pyx_kp_s_contiguous_and_indirect;
-static PyObject *__pyx_n_s_dict;
-static PyObject *__pyx_n_s_dtype_is_object;
-static PyObject *__pyx_n_s_encode;
-static PyObject *__pyx_n_s_enumerate;
-static PyObject *__pyx_n_s_error;
-static PyObject *__pyx_n_s_faces;
-static PyObject *__pyx_n_s_flags;
-static PyObject *__pyx_n_s_format;
-static PyObject *__pyx_n_s_fortran;
-static PyObject *__pyx_n_u_fortran;
-static PyObject *__pyx_n_s_getstate;
-static PyObject *__pyx_kp_s_got_differing_extents_in_dimensi;
-static PyObject *__pyx_n_s_id;
-static PyObject *__pyx_n_s_import;
-static PyObject *__pyx_n_s_itemsize;
-static PyObject *__pyx_kp_s_itemsize_0_for_cython_array;
-static PyObject *__pyx_n_s_main;
-static PyObject *__pyx_n_s_memview;
-static PyObject *__pyx_n_s_mode;
-static PyObject *__pyx_n_s_name;
-static PyObject *__pyx_n_s_name_2;
-static PyObject *__pyx_n_s_ndim;
-static PyObject *__pyx_n_s_new;
-static PyObject *__pyx_kp_s_no_default___reduce___due_to_non;
-static PyObject *__pyx_n_s_obj;
-static PyObject *__pyx_n_s_occ;
-static PyObject *__pyx_n_s_occupancies;
-static PyObject *__pyx_n_s_pack;
-static PyObject *__pyx_n_s_pickle;
-static PyObject *__pyx_n_s_pyx_PickleError;
-static PyObject *__pyx_n_s_pyx_checksum;
-static PyObject *__pyx_n_s_pyx_getbuffer;
-static PyObject *__pyx_n_s_pyx_result;
-static PyObject *__pyx_n_s_pyx_state;
-static PyObject *__pyx_n_s_pyx_type;
-static PyObject *__pyx_n_s_pyx_unpickle_Enum;
-static PyObject *__pyx_n_s_pyx_vtable;
-static PyObject *__pyx_n_s_range;
-static PyObject *__pyx_n_s_reduce;
-static PyObject *__pyx_n_s_reduce_cython;
-static PyObject *__pyx_n_s_reduce_ex;
-static PyObject *__pyx_n_s_setstate;
-static PyObject *__pyx_n_s_setstate_cython;
-static PyObject *__pyx_n_s_shape;
-static PyObject *__pyx_n_s_size;
-static PyObject *__pyx_n_s_start;
-static PyObject *__pyx_n_s_step;
-static PyObject *__pyx_n_s_stop;
-static PyObject *__pyx_kp_s_strided_and_direct;
-static PyObject *__pyx_kp_s_strided_and_direct_or_indirect;
-static PyObject *__pyx_kp_s_strided_and_indirect;
-static PyObject *__pyx_kp_s_stringsource;
-static PyObject *__pyx_n_s_struct;
-static PyObject *__pyx_n_s_test;
-static PyObject *__pyx_n_s_triverts;
-static PyObject *__pyx_kp_s_unable_to_allocate_array_data;
-static PyObject *__pyx_kp_s_unable_to_allocate_shape_and_str;
-static PyObject *__pyx_n_s_unpack;
-static PyObject *__pyx_n_s_update;
-static PyObject *__pyx_pf_8voxelize_voxelize_mesh_(CYTHON_UNUSED PyObject *__pyx_self, __Pyx_memviewslice __pyx_v_occ, __Pyx_memviewslice __pyx_v_faces); /* proto */
-static PyObject *__pyx_pf_8voxelize_2voxelize_triangle_(CYTHON_UNUSED PyObject *__pyx_self, __Pyx_memviewslice __pyx_v_occupancies, __Pyx_memviewslice __pyx_v_triverts); /* proto */
+/* #### Code section: decls ### */
 static int __pyx_array___pyx_pf_15View_dot_MemoryView_5array___cinit__(struct __pyx_array_obj *__pyx_v_self, PyObject *__pyx_v_shape, Py_ssize_t __pyx_v_itemsize, PyObject *__pyx_v_format, PyObject *__pyx_v_mode, int __pyx_v_allocate_buffer); /* proto */
 static int __pyx_array___pyx_pf_15View_dot_MemoryView_5array_2__getbuffer__(struct __pyx_array_obj *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags); /* proto */
 static void __pyx_array___pyx_pf_15View_dot_MemoryView_5array_4__dealloc__(struct __pyx_array_obj *__pyx_v_self); /* proto */
@@ -2076,2626 +2941,2872 @@ static PyObject *__pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_22
 static PyObject *__pyx_pf___pyx_memoryview___reduce_cython__(CYTHON_UNUSED struct __pyx_memoryview_obj *__pyx_v_self); /* proto */
 static PyObject *__pyx_pf___pyx_memoryview_2__setstate_cython__(CYTHON_UNUSED struct __pyx_memoryview_obj *__pyx_v_self, CYTHON_UNUSED PyObject *__pyx_v___pyx_state); /* proto */
 static void __pyx_memoryviewslice___pyx_pf_15View_dot_MemoryView_16_memoryviewslice___dealloc__(struct __pyx_memoryviewslice_obj *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_15View_dot_MemoryView_16_memoryviewslice_4base___get__(struct __pyx_memoryviewslice_obj *__pyx_v_self); /* proto */
 static PyObject *__pyx_pf___pyx_memoryviewslice___reduce_cython__(CYTHON_UNUSED struct __pyx_memoryviewslice_obj *__pyx_v_self); /* proto */
 static PyObject *__pyx_pf___pyx_memoryviewslice_2__setstate_cython__(CYTHON_UNUSED struct __pyx_memoryviewslice_obj *__pyx_v_self, CYTHON_UNUSED PyObject *__pyx_v___pyx_state); /* proto */
 static PyObject *__pyx_pf_15View_dot_MemoryView___pyx_unpickle_Enum(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v___pyx_type, long __pyx_v___pyx_checksum, PyObject *__pyx_v___pyx_state); /* proto */
+static PyObject *__pyx_pf_8voxelize_voxelize_mesh_(CYTHON_UNUSED PyObject *__pyx_self, __Pyx_memviewslice __pyx_v_occ, __Pyx_memviewslice __pyx_v_faces); /* proto */
+static PyObject *__pyx_pf_8voxelize_2voxelize_triangle_(CYTHON_UNUSED PyObject *__pyx_self, __Pyx_memviewslice __pyx_v_occupancies, __Pyx_memviewslice __pyx_v_triverts); /* proto */
 static PyObject *__pyx_tp_new_array(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
 static PyObject *__pyx_tp_new_Enum(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
 static PyObject *__pyx_tp_new_memoryview(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
 static PyObject *__pyx_tp_new__memoryviewslice(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_int_0;
-static PyObject *__pyx_int_1;
-static PyObject *__pyx_int_184977713;
-static PyObject *__pyx_int_neg_1;
-static PyObject *__pyx_tuple_;
-static PyObject *__pyx_tuple__2;
-static PyObject *__pyx_tuple__3;
-static PyObject *__pyx_tuple__4;
-static PyObject *__pyx_tuple__5;
-static PyObject *__pyx_tuple__6;
-static PyObject *__pyx_tuple__7;
-static PyObject *__pyx_tuple__8;
-static PyObject *__pyx_tuple__9;
-static PyObject *__pyx_slice__15;
-static PyObject *__pyx_tuple__10;
-static PyObject *__pyx_tuple__11;
-static PyObject *__pyx_tuple__12;
-static PyObject *__pyx_tuple__13;
-static PyObject *__pyx_tuple__14;
-static PyObject *__pyx_tuple__16;
-static PyObject *__pyx_tuple__17;
-static PyObject *__pyx_tuple__18;
-static PyObject *__pyx_tuple__19;
-static PyObject *__pyx_tuple__20;
-static PyObject *__pyx_tuple__21;
-static PyObject *__pyx_tuple__22;
-static PyObject *__pyx_tuple__23;
-static PyObject *__pyx_tuple__24;
-static PyObject *__pyx_codeobj__25;
-/* Late includes */
-
-/* "voxelize.pyx":13
- * @cython.boundscheck(False)  # Deactivate bounds checking
- * @cython.wraparound(False)   # Deactivate negative indexing.
- * cpdef int voxelize_mesh_(bint[:, :, :] occ, float[:, :, ::1] faces):             # <<<<<<<<<<<<<<
- *     assert(faces.shape[1] == 3)
- *     assert(faces.shape[2] == 3)
- */
-
-static PyObject *__pyx_pw_8voxelize_1voxelize_mesh_(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static int __pyx_f_8voxelize_voxelize_mesh_(__Pyx_memviewslice __pyx_v_occ, __Pyx_memviewslice __pyx_v_faces, CYTHON_UNUSED int __pyx_skip_dispatch) {
-  Py_ssize_t __pyx_v_n_faces;
-  int __pyx_v_i;
-  int __pyx_r;
-  __Pyx_RefNannyDeclarations
-  Py_ssize_t __pyx_t_1;
-  Py_ssize_t __pyx_t_2;
-  int __pyx_t_3;
-  __Pyx_memviewslice __pyx_t_4 = { 0, 0, { 0 }, { 0 }, { 0 } };
-  int __pyx_lineno = 0;
-  const char *__pyx_filename = NULL;
-  int __pyx_clineno = 0;
-  __Pyx_RefNannySetupContext("voxelize_mesh_", 0);
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-  /* "voxelize.pyx":14
- * @cython.wraparound(False)   # Deactivate negative indexing.
- * cpdef int voxelize_mesh_(bint[:, :, :] occ, float[:, :, ::1] faces):
- *     assert(faces.shape[1] == 3)             # <<<<<<<<<<<<<<
- *     assert(faces.shape[2] == 3)
- * 
- */
-  #ifndef CYTHON_WITHOUT_ASSERTIONS
-  if (unlikely(!Py_OptimizeFlag)) {
-    if (unlikely(!(((__pyx_v_faces.shape[1]) == 3) != 0))) {
-      PyErr_SetNone(PyExc_AssertionError);
-      __PYX_ERR(0, 14, __pyx_L1_error)
-    }
-  }
+/* #### Code section: late_includes ### */
+/* #### Code section: module_state ### */
+typedef struct {
+  PyObject *__pyx_d;
+  PyObject *__pyx_b;
+  PyObject *__pyx_cython_runtime;
+  PyObject *__pyx_empty_tuple;
+  PyObject *__pyx_empty_bytes;
+  PyObject *__pyx_empty_unicode;
+  #ifdef __Pyx_CyFunction_USED
+  PyTypeObject *__pyx_CyFunctionType;
   #endif
-
-  /* "voxelize.pyx":15
- * cpdef int voxelize_mesh_(bint[:, :, :] occ, float[:, :, ::1] faces):
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- *     assert(faces.shape[2] == 3)             # <<<<<<<<<<<<<<
- * 
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- */
-  #ifndef CYTHON_WITHOUT_ASSERTIONS
-  if (unlikely(!Py_OptimizeFlag)) {
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-      PyErr_SetNone(PyExc_AssertionError);
-      __PYX_ERR(0, 15, __pyx_L1_error)
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+  #ifdef __Pyx_FusedFunction_USED
+  PyTypeObject *__pyx_FusedFunctionType;
+  #endif
+  #ifdef __Pyx_Generator_USED
+  PyTypeObject *__pyx_GeneratorType;
+  #endif
+  #ifdef __Pyx_IterableCoroutine_USED
+  PyTypeObject *__pyx_IterableCoroutineType;
+  #endif
+  #ifdef __Pyx_Coroutine_USED
+  PyTypeObject *__pyx_CoroutineAwaitType;
+  #endif
+  #ifdef __Pyx_Coroutine_USED
+  PyTypeObject *__pyx_CoroutineType;
+  #endif
+  #if CYTHON_USE_MODULE_STATE
+  #endif
+  #if CYTHON_USE_MODULE_STATE
+  #endif
+  #if CYTHON_USE_MODULE_STATE
   #endif
+  #if CYTHON_USE_MODULE_STATE
+  #endif
+  #if CYTHON_USE_MODULE_STATE
+  PyObject *__pyx_type___pyx_array;
+  PyObject *__pyx_type___pyx_MemviewEnum;
+  PyObject *__pyx_type___pyx_memoryview;
+  PyObject *__pyx_type___pyx_memoryviewslice;
+  #endif
+  PyTypeObject *__pyx_array_type;
+  PyTypeObject *__pyx_MemviewEnum_type;
+  PyTypeObject *__pyx_memoryview_type;
+  PyTypeObject *__pyx_memoryviewslice_type;
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+  PyObject *__pyx_n_s_cline_in_traceback;
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+  PyObject *__pyx_kp_s_contiguous_and_direct;
+  PyObject *__pyx_kp_s_contiguous_and_indirect;
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+  PyObject *__pyx_n_s_dtype_is_object;
+  PyObject *__pyx_kp_u_enable;
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+  PyObject *__pyx_n_s_pyx_result;
+  PyObject *__pyx_n_s_pyx_state;
+  PyObject *__pyx_n_s_pyx_type;
+  PyObject *__pyx_n_s_pyx_unpickle_Enum;
+  PyObject *__pyx_n_s_pyx_vtable;
+  PyObject *__pyx_n_s_range;
+  PyObject *__pyx_n_s_reduce;
+  PyObject *__pyx_n_s_reduce_cython;
+  PyObject *__pyx_n_s_reduce_ex;
+  PyObject *__pyx_n_s_register;
+  PyObject *__pyx_n_s_setstate;
+  PyObject *__pyx_n_s_setstate_cython;
+  PyObject *__pyx_n_s_shape;
+  PyObject *__pyx_n_s_size;
+  PyObject *__pyx_n_s_spec;
+  PyObject *__pyx_n_s_start;
+  PyObject *__pyx_n_s_step;
+  PyObject *__pyx_n_s_stop;
+  PyObject *__pyx_kp_s_strided_and_direct;
+  PyObject *__pyx_kp_s_strided_and_direct_or_indirect;
+  PyObject *__pyx_kp_s_strided_and_indirect;
+  PyObject *__pyx_kp_s_stringsource;
+  PyObject *__pyx_n_s_struct;
+  PyObject *__pyx_n_s_sys;
+  PyObject *__pyx_n_s_test;
+  PyObject *__pyx_n_s_triverts;
+  PyObject *__pyx_kp_s_unable_to_allocate_array_data;
+  PyObject *__pyx_kp_s_unable_to_allocate_shape_and_str;
+  PyObject *__pyx_n_s_unpack;
+  PyObject *__pyx_n_s_update;
+  PyObject *__pyx_n_s_version_info;
+  PyObject *__pyx_n_s_voxelize;
+  PyObject *__pyx_n_s_voxelize_mesh;
+  PyObject *__pyx_kp_s_voxelize_pyx;
+  PyObject *__pyx_n_s_voxelize_triangle;
+  PyObject *__pyx_int_0;
+  PyObject *__pyx_int_1;
+  PyObject *__pyx_int_3;
+  PyObject *__pyx_int_112105877;
+  PyObject *__pyx_int_136983863;
+  PyObject *__pyx_int_184977713;
+  PyObject *__pyx_int_neg_1;
+  PyObject *__pyx_slice__5;
+  PyObject *__pyx_tuple__4;
+  PyObject *__pyx_tuple__8;
+  PyObject *__pyx_tuple__9;
+  PyObject *__pyx_tuple__10;
+  PyObject *__pyx_tuple__11;
+  PyObject *__pyx_tuple__12;
+  PyObject *__pyx_tuple__13;
+  PyObject *__pyx_tuple__14;
+  PyObject *__pyx_tuple__15;
+  PyObject *__pyx_tuple__16;
+  PyObject *__pyx_tuple__17;
+  PyObject *__pyx_tuple__18;
+  PyObject *__pyx_tuple__20;
+  PyObject *__pyx_tuple__22;
+  PyObject *__pyx_codeobj__19;
+  PyObject *__pyx_codeobj__21;
+  PyObject *__pyx_codeobj__23;
+} __pyx_mstate;
+
+#if CYTHON_USE_MODULE_STATE
+#ifdef __cplusplus
+namespace {
+  extern struct PyModuleDef __pyx_moduledef;
+} /* anonymous namespace */
+#else
+static struct PyModuleDef __pyx_moduledef;
+#endif
 
-  /* "voxelize.pyx":17
- *     assert(faces.shape[2] == 3)
- * 
- *     n_faces = faces.shape[0]             # <<<<<<<<<<<<<<
- *     cdef int i
- *     for i in range(n_faces):
- */
-  __pyx_v_n_faces = (__pyx_v_faces.shape[0]);
+#define __pyx_mstate(o) ((__pyx_mstate *)__Pyx_PyModule_GetState(o))
 
-  /* "voxelize.pyx":19
- *     n_faces = faces.shape[0]
- *     cdef int i
- *     for i in range(n_faces):             # <<<<<<<<<<<<<<
- *         voxelize_triangle_(occ, faces[i])
- * 
- */
-  __pyx_t_1 = __pyx_v_n_faces;
-  __pyx_t_2 = __pyx_t_1;
-  for (__pyx_t_3 = 0; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
-    __pyx_v_i = __pyx_t_3;
+#define __pyx_mstate_global (__pyx_mstate(PyState_FindModule(&__pyx_moduledef)))
 
-    /* "voxelize.pyx":20
- *     cdef int i
- *     for i in range(n_faces):
- *         voxelize_triangle_(occ, faces[i])             # <<<<<<<<<<<<<<
+#define __pyx_m (PyState_FindModule(&__pyx_moduledef))
+#else
+static __pyx_mstate __pyx_mstate_global_static =
+#ifdef __cplusplus
+    {};
+#else
+    {0};
+#endif
+static __pyx_mstate *__pyx_mstate_global = &__pyx_mstate_global_static;
+#endif
+/* #### Code section: module_state_clear ### */
+#if CYTHON_USE_MODULE_STATE
+static int __pyx_m_clear(PyObject *m) {
+  __pyx_mstate *clear_module_state = __pyx_mstate(m);
+  if (!clear_module_state) return 0;
+  Py_CLEAR(clear_module_state->__pyx_d);
+  Py_CLEAR(clear_module_state->__pyx_b);
+  Py_CLEAR(clear_module_state->__pyx_cython_runtime);
+  Py_CLEAR(clear_module_state->__pyx_empty_tuple);
+  Py_CLEAR(clear_module_state->__pyx_empty_bytes);
+  Py_CLEAR(clear_module_state->__pyx_empty_unicode);
+  #ifdef __Pyx_CyFunction_USED
+  Py_CLEAR(clear_module_state->__pyx_CyFunctionType);
+  #endif
+  #ifdef __Pyx_FusedFunction_USED
+  Py_CLEAR(clear_module_state->__pyx_FusedFunctionType);
+  #endif
+  Py_CLEAR(clear_module_state->__pyx_array_type);
+  Py_CLEAR(clear_module_state->__pyx_type___pyx_array);
+  Py_CLEAR(clear_module_state->__pyx_MemviewEnum_type);
+  Py_CLEAR(clear_module_state->__pyx_type___pyx_MemviewEnum);
+  Py_CLEAR(clear_module_state->__pyx_memoryview_type);
+  Py_CLEAR(clear_module_state->__pyx_type___pyx_memoryview);
+  Py_CLEAR(clear_module_state->__pyx_memoryviewslice_type);
+  Py_CLEAR(clear_module_state->__pyx_type___pyx_memoryviewslice);
+  Py_CLEAR(clear_module_state->__pyx_kp_u_);
+  Py_CLEAR(clear_module_state->__pyx_n_s_ASCII);
+  Py_CLEAR(clear_module_state->__pyx_kp_s_All_dimensions_preceding_dimensi);
+  Py_CLEAR(clear_module_state->__pyx_n_s_AssertionError);
+  Py_CLEAR(clear_module_state->__pyx_kp_s_Buffer_view_does_not_expose_stri);
+  Py_CLEAR(clear_module_state->__pyx_kp_s_Can_only_create_a_buffer_that_is);
+  Py_CLEAR(clear_module_state->__pyx_kp_s_Cannot_assign_to_read_only_memor);
+  Py_CLEAR(clear_module_state->__pyx_kp_s_Cannot_create_writable_memory_vi);
+  Py_CLEAR(clear_module_state->__pyx_kp_u_Cannot_index_with_type);
+  Py_CLEAR(clear_module_state->__pyx_kp_s_Cannot_transpose_memoryview_with);
+  Py_CLEAR(clear_module_state->__pyx_kp_s_Dimension_d_is_not_direct);
+  Py_CLEAR(clear_module_state->__pyx_n_s_Ellipsis);
+  Py_CLEAR(clear_module_state->__pyx_kp_s_Empty_shape_tuple_for_cython_arr);
+  Py_CLEAR(clear_module_state->__pyx_kp_s_Incompatible_checksums_0x_x_vs_0);
+  Py_CLEAR(clear_module_state->__pyx_n_s_IndexError);
+  Py_CLEAR(clear_module_state->__pyx_kp_s_Index_out_of_bounds_axis_d);
+  Py_CLEAR(clear_module_state->__pyx_kp_s_Indirect_dimensions_not_supporte);
+  Py_CLEAR(clear_module_state->__pyx_kp_u_Invalid_mode_expected_c_or_fortr);
+  Py_CLEAR(clear_module_state->__pyx_kp_u_Invalid_shape_in_axis);
+  Py_CLEAR(clear_module_state->__pyx_n_s_MemoryError);
+  Py_CLEAR(clear_module_state->__pyx_kp_s_MemoryView_of_r_at_0x_x);
+  Py_CLEAR(clear_module_state->__pyx_kp_s_MemoryView_of_r_object);
+  Py_CLEAR(clear_module_state->__pyx_n_b_O);
+  Py_CLEAR(clear_module_state->__pyx_kp_u_Out_of_bounds_on_buffer_access_a);
+  Py_CLEAR(clear_module_state->__pyx_n_s_PickleError);
+  Py_CLEAR(clear_module_state->__pyx_n_s_Sequence);
+  Py_CLEAR(clear_module_state->__pyx_kp_s_Step_may_not_be_zero_axis_d);
+  Py_CLEAR(clear_module_state->__pyx_n_s_TypeError);
+  Py_CLEAR(clear_module_state->__pyx_kp_s_Unable_to_convert_item_to_object);
+  Py_CLEAR(clear_module_state->__pyx_n_s_ValueError);
+  Py_CLEAR(clear_module_state->__pyx_n_s_View_MemoryView);
+  Py_CLEAR(clear_module_state->__pyx_kp_u__2);
+  Py_CLEAR(clear_module_state->__pyx_n_s__24);
+  Py_CLEAR(clear_module_state->__pyx_n_s__3);
+  Py_CLEAR(clear_module_state->__pyx_kp_u__6);
+  Py_CLEAR(clear_module_state->__pyx_kp_u__7);
+  Py_CLEAR(clear_module_state->__pyx_n_s_abc);
+  Py_CLEAR(clear_module_state->__pyx_n_s_allocate_buffer);
+  Py_CLEAR(clear_module_state->__pyx_kp_u_and);
+  Py_CLEAR(clear_module_state->__pyx_n_s_asyncio_coroutines);
+  Py_CLEAR(clear_module_state->__pyx_n_s_base);
+  Py_CLEAR(clear_module_state->__pyx_n_s_c);
+  Py_CLEAR(clear_module_state->__pyx_n_u_c);
+  Py_CLEAR(clear_module_state->__pyx_n_s_class);
+  Py_CLEAR(clear_module_state->__pyx_n_s_class_getitem);
+  Py_CLEAR(clear_module_state->__pyx_n_s_cline_in_traceback);
+  Py_CLEAR(clear_module_state->__pyx_n_s_collections);
+  Py_CLEAR(clear_module_state->__pyx_kp_s_collections_abc);
+  Py_CLEAR(clear_module_state->__pyx_kp_s_contiguous_and_direct);
+  Py_CLEAR(clear_module_state->__pyx_kp_s_contiguous_and_indirect);
+  Py_CLEAR(clear_module_state->__pyx_n_s_count);
+  Py_CLEAR(clear_module_state->__pyx_n_s_dict);
+  Py_CLEAR(clear_module_state->__pyx_kp_u_disable);
+  Py_CLEAR(clear_module_state->__pyx_n_s_dtype_is_object);
+  Py_CLEAR(clear_module_state->__pyx_kp_u_enable);
+  Py_CLEAR(clear_module_state->__pyx_n_s_encode);
+  Py_CLEAR(clear_module_state->__pyx_n_s_enumerate);
+  Py_CLEAR(clear_module_state->__pyx_n_s_error);
+  Py_CLEAR(clear_module_state->__pyx_n_s_faces);
+  Py_CLEAR(clear_module_state->__pyx_n_s_flags);
+  Py_CLEAR(clear_module_state->__pyx_n_s_format);
+  Py_CLEAR(clear_module_state->__pyx_n_s_fortran);
+  Py_CLEAR(clear_module_state->__pyx_n_u_fortran);
+  Py_CLEAR(clear_module_state->__pyx_kp_u_gc);
+  Py_CLEAR(clear_module_state->__pyx_n_s_getstate);
+  Py_CLEAR(clear_module_state->__pyx_kp_u_got);
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+  Py_CLEAR(clear_module_state->__pyx_n_s_id);
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+  Py_CLEAR(clear_module_state->__pyx_n_s_index);
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+  Py_CLEAR(clear_module_state->__pyx_kp_u_isenabled);
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+  Py_CLEAR(clear_module_state->__pyx_kp_s_itemsize_0_for_cython_array);
+  Py_CLEAR(clear_module_state->__pyx_n_s_main);
+  Py_CLEAR(clear_module_state->__pyx_n_s_memview);
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+  Py_CLEAR(clear_module_state->__pyx_n_s_pickle);
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+  Py_CLEAR(clear_module_state->__pyx_n_s_pyx_checksum);
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+  Py_CLEAR(clear_module_state->__pyx_n_s_reduce_ex);
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+  Py_CLEAR(clear_module_state->__pyx_n_s_shape);
+  Py_CLEAR(clear_module_state->__pyx_n_s_size);
+  Py_CLEAR(clear_module_state->__pyx_n_s_spec);
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+  Py_CLEAR(clear_module_state->__pyx_n_s_stop);
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+  Py_CLEAR(clear_module_state->__pyx_kp_s_strided_and_direct_or_indirect);
+  Py_CLEAR(clear_module_state->__pyx_kp_s_strided_and_indirect);
+  Py_CLEAR(clear_module_state->__pyx_kp_s_stringsource);
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+  Py_CLEAR(clear_module_state->__pyx_n_s_sys);
+  Py_CLEAR(clear_module_state->__pyx_n_s_test);
+  Py_CLEAR(clear_module_state->__pyx_n_s_triverts);
+  Py_CLEAR(clear_module_state->__pyx_kp_s_unable_to_allocate_array_data);
+  Py_CLEAR(clear_module_state->__pyx_kp_s_unable_to_allocate_shape_and_str);
+  Py_CLEAR(clear_module_state->__pyx_n_s_unpack);
+  Py_CLEAR(clear_module_state->__pyx_n_s_update);
+  Py_CLEAR(clear_module_state->__pyx_n_s_version_info);
+  Py_CLEAR(clear_module_state->__pyx_n_s_voxelize);
+  Py_CLEAR(clear_module_state->__pyx_n_s_voxelize_mesh);
+  Py_CLEAR(clear_module_state->__pyx_kp_s_voxelize_pyx);
+  Py_CLEAR(clear_module_state->__pyx_n_s_voxelize_triangle);
+  Py_CLEAR(clear_module_state->__pyx_int_0);
+  Py_CLEAR(clear_module_state->__pyx_int_1);
+  Py_CLEAR(clear_module_state->__pyx_int_3);
+  Py_CLEAR(clear_module_state->__pyx_int_112105877);
+  Py_CLEAR(clear_module_state->__pyx_int_136983863);
+  Py_CLEAR(clear_module_state->__pyx_int_184977713);
+  Py_CLEAR(clear_module_state->__pyx_int_neg_1);
+  Py_CLEAR(clear_module_state->__pyx_slice__5);
+  Py_CLEAR(clear_module_state->__pyx_tuple__4);
+  Py_CLEAR(clear_module_state->__pyx_tuple__8);
+  Py_CLEAR(clear_module_state->__pyx_tuple__9);
+  Py_CLEAR(clear_module_state->__pyx_tuple__10);
+  Py_CLEAR(clear_module_state->__pyx_tuple__11);
+  Py_CLEAR(clear_module_state->__pyx_tuple__12);
+  Py_CLEAR(clear_module_state->__pyx_tuple__13);
+  Py_CLEAR(clear_module_state->__pyx_tuple__14);
+  Py_CLEAR(clear_module_state->__pyx_tuple__15);
+  Py_CLEAR(clear_module_state->__pyx_tuple__16);
+  Py_CLEAR(clear_module_state->__pyx_tuple__17);
+  Py_CLEAR(clear_module_state->__pyx_tuple__18);
+  Py_CLEAR(clear_module_state->__pyx_tuple__20);
+  Py_CLEAR(clear_module_state->__pyx_tuple__22);
+  Py_CLEAR(clear_module_state->__pyx_codeobj__19);
+  Py_CLEAR(clear_module_state->__pyx_codeobj__21);
+  Py_CLEAR(clear_module_state->__pyx_codeobj__23);
+  return 0;
+}
+#endif
+/* #### Code section: module_state_traverse ### */
+#if CYTHON_USE_MODULE_STATE
+static int __pyx_m_traverse(PyObject *m, visitproc visit, void *arg) {
+  __pyx_mstate *traverse_module_state = __pyx_mstate(m);
+  if (!traverse_module_state) return 0;
+  Py_VISIT(traverse_module_state->__pyx_d);
+  Py_VISIT(traverse_module_state->__pyx_b);
+  Py_VISIT(traverse_module_state->__pyx_cython_runtime);
+  Py_VISIT(traverse_module_state->__pyx_empty_tuple);
+  Py_VISIT(traverse_module_state->__pyx_empty_bytes);
+  Py_VISIT(traverse_module_state->__pyx_empty_unicode);
+  #ifdef __Pyx_CyFunction_USED
+  Py_VISIT(traverse_module_state->__pyx_CyFunctionType);
+  #endif
+  #ifdef __Pyx_FusedFunction_USED
+  Py_VISIT(traverse_module_state->__pyx_FusedFunctionType);
+  #endif
+  Py_VISIT(traverse_module_state->__pyx_array_type);
+  Py_VISIT(traverse_module_state->__pyx_type___pyx_array);
+  Py_VISIT(traverse_module_state->__pyx_MemviewEnum_type);
+  Py_VISIT(traverse_module_state->__pyx_type___pyx_MemviewEnum);
+  Py_VISIT(traverse_module_state->__pyx_memoryview_type);
+  Py_VISIT(traverse_module_state->__pyx_type___pyx_memoryview);
+  Py_VISIT(traverse_module_state->__pyx_memoryviewslice_type);
+  Py_VISIT(traverse_module_state->__pyx_type___pyx_memoryviewslice);
+  Py_VISIT(traverse_module_state->__pyx_kp_u_);
+  Py_VISIT(traverse_module_state->__pyx_n_s_ASCII);
+  Py_VISIT(traverse_module_state->__pyx_kp_s_All_dimensions_preceding_dimensi);
+  Py_VISIT(traverse_module_state->__pyx_n_s_AssertionError);
+  Py_VISIT(traverse_module_state->__pyx_kp_s_Buffer_view_does_not_expose_stri);
+  Py_VISIT(traverse_module_state->__pyx_kp_s_Can_only_create_a_buffer_that_is);
+  Py_VISIT(traverse_module_state->__pyx_kp_s_Cannot_assign_to_read_only_memor);
+  Py_VISIT(traverse_module_state->__pyx_kp_s_Cannot_create_writable_memory_vi);
+  Py_VISIT(traverse_module_state->__pyx_kp_u_Cannot_index_with_type);
+  Py_VISIT(traverse_module_state->__pyx_kp_s_Cannot_transpose_memoryview_with);
+  Py_VISIT(traverse_module_state->__pyx_kp_s_Dimension_d_is_not_direct);
+  Py_VISIT(traverse_module_state->__pyx_n_s_Ellipsis);
+  Py_VISIT(traverse_module_state->__pyx_kp_s_Empty_shape_tuple_for_cython_arr);
+  Py_VISIT(traverse_module_state->__pyx_kp_s_Incompatible_checksums_0x_x_vs_0);
+  Py_VISIT(traverse_module_state->__pyx_n_s_IndexError);
+  Py_VISIT(traverse_module_state->__pyx_kp_s_Index_out_of_bounds_axis_d);
+  Py_VISIT(traverse_module_state->__pyx_kp_s_Indirect_dimensions_not_supporte);
+  Py_VISIT(traverse_module_state->__pyx_kp_u_Invalid_mode_expected_c_or_fortr);
+  Py_VISIT(traverse_module_state->__pyx_kp_u_Invalid_shape_in_axis);
+  Py_VISIT(traverse_module_state->__pyx_n_s_MemoryError);
+  Py_VISIT(traverse_module_state->__pyx_kp_s_MemoryView_of_r_at_0x_x);
+  Py_VISIT(traverse_module_state->__pyx_kp_s_MemoryView_of_r_object);
+  Py_VISIT(traverse_module_state->__pyx_n_b_O);
+  Py_VISIT(traverse_module_state->__pyx_kp_u_Out_of_bounds_on_buffer_access_a);
+  Py_VISIT(traverse_module_state->__pyx_n_s_PickleError);
+  Py_VISIT(traverse_module_state->__pyx_n_s_Sequence);
+  Py_VISIT(traverse_module_state->__pyx_kp_s_Step_may_not_be_zero_axis_d);
+  Py_VISIT(traverse_module_state->__pyx_n_s_TypeError);
+  Py_VISIT(traverse_module_state->__pyx_kp_s_Unable_to_convert_item_to_object);
+  Py_VISIT(traverse_module_state->__pyx_n_s_ValueError);
+  Py_VISIT(traverse_module_state->__pyx_n_s_View_MemoryView);
+  Py_VISIT(traverse_module_state->__pyx_kp_u__2);
+  Py_VISIT(traverse_module_state->__pyx_n_s__24);
+  Py_VISIT(traverse_module_state->__pyx_n_s__3);
+  Py_VISIT(traverse_module_state->__pyx_kp_u__6);
+  Py_VISIT(traverse_module_state->__pyx_kp_u__7);
+  Py_VISIT(traverse_module_state->__pyx_n_s_abc);
+  Py_VISIT(traverse_module_state->__pyx_n_s_allocate_buffer);
+  Py_VISIT(traverse_module_state->__pyx_kp_u_and);
+  Py_VISIT(traverse_module_state->__pyx_n_s_asyncio_coroutines);
+  Py_VISIT(traverse_module_state->__pyx_n_s_base);
+  Py_VISIT(traverse_module_state->__pyx_n_s_c);
+  Py_VISIT(traverse_module_state->__pyx_n_u_c);
+  Py_VISIT(traverse_module_state->__pyx_n_s_class);
+  Py_VISIT(traverse_module_state->__pyx_n_s_class_getitem);
+  Py_VISIT(traverse_module_state->__pyx_n_s_cline_in_traceback);
+  Py_VISIT(traverse_module_state->__pyx_n_s_collections);
+  Py_VISIT(traverse_module_state->__pyx_kp_s_collections_abc);
+  Py_VISIT(traverse_module_state->__pyx_kp_s_contiguous_and_direct);
+  Py_VISIT(traverse_module_state->__pyx_kp_s_contiguous_and_indirect);
+  Py_VISIT(traverse_module_state->__pyx_n_s_count);
+  Py_VISIT(traverse_module_state->__pyx_n_s_dict);
+  Py_VISIT(traverse_module_state->__pyx_kp_u_disable);
+  Py_VISIT(traverse_module_state->__pyx_n_s_dtype_is_object);
+  Py_VISIT(traverse_module_state->__pyx_kp_u_enable);
+  Py_VISIT(traverse_module_state->__pyx_n_s_encode);
+  Py_VISIT(traverse_module_state->__pyx_n_s_enumerate);
+  Py_VISIT(traverse_module_state->__pyx_n_s_error);
+  Py_VISIT(traverse_module_state->__pyx_n_s_faces);
+  Py_VISIT(traverse_module_state->__pyx_n_s_flags);
+  Py_VISIT(traverse_module_state->__pyx_n_s_format);
+  Py_VISIT(traverse_module_state->__pyx_n_s_fortran);
+  Py_VISIT(traverse_module_state->__pyx_n_u_fortran);
+  Py_VISIT(traverse_module_state->__pyx_kp_u_gc);
+  Py_VISIT(traverse_module_state->__pyx_n_s_getstate);
+  Py_VISIT(traverse_module_state->__pyx_kp_u_got);
+  Py_VISIT(traverse_module_state->__pyx_kp_u_got_differing_extents_in_dimensi);
+  Py_VISIT(traverse_module_state->__pyx_n_s_id);
+  Py_VISIT(traverse_module_state->__pyx_n_s_import);
+  Py_VISIT(traverse_module_state->__pyx_n_s_index);
+  Py_VISIT(traverse_module_state->__pyx_n_s_initializing);
+  Py_VISIT(traverse_module_state->__pyx_n_s_is_coroutine);
+  Py_VISIT(traverse_module_state->__pyx_kp_u_isenabled);
+  Py_VISIT(traverse_module_state->__pyx_n_s_itemsize);
+  Py_VISIT(traverse_module_state->__pyx_kp_s_itemsize_0_for_cython_array);
+  Py_VISIT(traverse_module_state->__pyx_n_s_main);
+  Py_VISIT(traverse_module_state->__pyx_n_s_memview);
+  Py_VISIT(traverse_module_state->__pyx_n_s_mode);
+  Py_VISIT(traverse_module_state->__pyx_n_s_name);
+  Py_VISIT(traverse_module_state->__pyx_n_s_name_2);
+  Py_VISIT(traverse_module_state->__pyx_n_s_ndim);
+  Py_VISIT(traverse_module_state->__pyx_n_s_new);
+  Py_VISIT(traverse_module_state->__pyx_kp_s_no_default___reduce___due_to_non);
+  Py_VISIT(traverse_module_state->__pyx_n_s_obj);
+  Py_VISIT(traverse_module_state->__pyx_n_s_occ);
+  Py_VISIT(traverse_module_state->__pyx_n_s_occupancies);
+  Py_VISIT(traverse_module_state->__pyx_n_s_pack);
+  Py_VISIT(traverse_module_state->__pyx_n_s_pickle);
+  Py_VISIT(traverse_module_state->__pyx_n_s_pyx_PickleError);
+  Py_VISIT(traverse_module_state->__pyx_n_s_pyx_checksum);
+  Py_VISIT(traverse_module_state->__pyx_n_s_pyx_result);
+  Py_VISIT(traverse_module_state->__pyx_n_s_pyx_state);
+  Py_VISIT(traverse_module_state->__pyx_n_s_pyx_type);
+  Py_VISIT(traverse_module_state->__pyx_n_s_pyx_unpickle_Enum);
+  Py_VISIT(traverse_module_state->__pyx_n_s_pyx_vtable);
+  Py_VISIT(traverse_module_state->__pyx_n_s_range);
+  Py_VISIT(traverse_module_state->__pyx_n_s_reduce);
+  Py_VISIT(traverse_module_state->__pyx_n_s_reduce_cython);
+  Py_VISIT(traverse_module_state->__pyx_n_s_reduce_ex);
+  Py_VISIT(traverse_module_state->__pyx_n_s_register);
+  Py_VISIT(traverse_module_state->__pyx_n_s_setstate);
+  Py_VISIT(traverse_module_state->__pyx_n_s_setstate_cython);
+  Py_VISIT(traverse_module_state->__pyx_n_s_shape);
+  Py_VISIT(traverse_module_state->__pyx_n_s_size);
+  Py_VISIT(traverse_module_state->__pyx_n_s_spec);
+  Py_VISIT(traverse_module_state->__pyx_n_s_start);
+  Py_VISIT(traverse_module_state->__pyx_n_s_step);
+  Py_VISIT(traverse_module_state->__pyx_n_s_stop);
+  Py_VISIT(traverse_module_state->__pyx_kp_s_strided_and_direct);
+  Py_VISIT(traverse_module_state->__pyx_kp_s_strided_and_direct_or_indirect);
+  Py_VISIT(traverse_module_state->__pyx_kp_s_strided_and_indirect);
+  Py_VISIT(traverse_module_state->__pyx_kp_s_stringsource);
+  Py_VISIT(traverse_module_state->__pyx_n_s_struct);
+  Py_VISIT(traverse_module_state->__pyx_n_s_sys);
+  Py_VISIT(traverse_module_state->__pyx_n_s_test);
+  Py_VISIT(traverse_module_state->__pyx_n_s_triverts);
+  Py_VISIT(traverse_module_state->__pyx_kp_s_unable_to_allocate_array_data);
+  Py_VISIT(traverse_module_state->__pyx_kp_s_unable_to_allocate_shape_and_str);
+  Py_VISIT(traverse_module_state->__pyx_n_s_unpack);
+  Py_VISIT(traverse_module_state->__pyx_n_s_update);
+  Py_VISIT(traverse_module_state->__pyx_n_s_version_info);
+  Py_VISIT(traverse_module_state->__pyx_n_s_voxelize);
+  Py_VISIT(traverse_module_state->__pyx_n_s_voxelize_mesh);
+  Py_VISIT(traverse_module_state->__pyx_kp_s_voxelize_pyx);
+  Py_VISIT(traverse_module_state->__pyx_n_s_voxelize_triangle);
+  Py_VISIT(traverse_module_state->__pyx_int_0);
+  Py_VISIT(traverse_module_state->__pyx_int_1);
+  Py_VISIT(traverse_module_state->__pyx_int_3);
+  Py_VISIT(traverse_module_state->__pyx_int_112105877);
+  Py_VISIT(traverse_module_state->__pyx_int_136983863);
+  Py_VISIT(traverse_module_state->__pyx_int_184977713);
+  Py_VISIT(traverse_module_state->__pyx_int_neg_1);
+  Py_VISIT(traverse_module_state->__pyx_slice__5);
+  Py_VISIT(traverse_module_state->__pyx_tuple__4);
+  Py_VISIT(traverse_module_state->__pyx_tuple__8);
+  Py_VISIT(traverse_module_state->__pyx_tuple__9);
+  Py_VISIT(traverse_module_state->__pyx_tuple__10);
+  Py_VISIT(traverse_module_state->__pyx_tuple__11);
+  Py_VISIT(traverse_module_state->__pyx_tuple__12);
+  Py_VISIT(traverse_module_state->__pyx_tuple__13);
+  Py_VISIT(traverse_module_state->__pyx_tuple__14);
+  Py_VISIT(traverse_module_state->__pyx_tuple__15);
+  Py_VISIT(traverse_module_state->__pyx_tuple__16);
+  Py_VISIT(traverse_module_state->__pyx_tuple__17);
+  Py_VISIT(traverse_module_state->__pyx_tuple__18);
+  Py_VISIT(traverse_module_state->__pyx_tuple__20);
+  Py_VISIT(traverse_module_state->__pyx_tuple__22);
+  Py_VISIT(traverse_module_state->__pyx_codeobj__19);
+  Py_VISIT(traverse_module_state->__pyx_codeobj__21);
+  Py_VISIT(traverse_module_state->__pyx_codeobj__23);
+  return 0;
+}
+#endif
+/* #### Code section: module_state_defines ### */
+#define __pyx_d __pyx_mstate_global->__pyx_d
+#define __pyx_b __pyx_mstate_global->__pyx_b
+#define __pyx_cython_runtime __pyx_mstate_global->__pyx_cython_runtime
+#define __pyx_empty_tuple __pyx_mstate_global->__pyx_empty_tuple
+#define __pyx_empty_bytes __pyx_mstate_global->__pyx_empty_bytes
+#define __pyx_empty_unicode __pyx_mstate_global->__pyx_empty_unicode
+#ifdef __Pyx_CyFunction_USED
+#define __pyx_CyFunctionType __pyx_mstate_global->__pyx_CyFunctionType
+#endif
+#ifdef __Pyx_FusedFunction_USED
+#define __pyx_FusedFunctionType __pyx_mstate_global->__pyx_FusedFunctionType
+#endif
+#ifdef __Pyx_Generator_USED
+#define __pyx_GeneratorType __pyx_mstate_global->__pyx_GeneratorType
+#endif
+#ifdef __Pyx_IterableCoroutine_USED
+#define __pyx_IterableCoroutineType __pyx_mstate_global->__pyx_IterableCoroutineType
+#endif
+#ifdef __Pyx_Coroutine_USED
+#define __pyx_CoroutineAwaitType __pyx_mstate_global->__pyx_CoroutineAwaitType
+#endif
+#ifdef __Pyx_Coroutine_USED
+#define __pyx_CoroutineType __pyx_mstate_global->__pyx_CoroutineType
+#endif
+#if CYTHON_USE_MODULE_STATE
+#endif
+#if CYTHON_USE_MODULE_STATE
+#endif
+#if CYTHON_USE_MODULE_STATE
+#endif
+#if CYTHON_USE_MODULE_STATE
+#endif
+#if CYTHON_USE_MODULE_STATE
+#define __pyx_type___pyx_array __pyx_mstate_global->__pyx_type___pyx_array
+#define __pyx_type___pyx_MemviewEnum __pyx_mstate_global->__pyx_type___pyx_MemviewEnum
+#define __pyx_type___pyx_memoryview __pyx_mstate_global->__pyx_type___pyx_memoryview
+#define __pyx_type___pyx_memoryviewslice __pyx_mstate_global->__pyx_type___pyx_memoryviewslice
+#endif
+#define __pyx_array_type __pyx_mstate_global->__pyx_array_type
+#define __pyx_MemviewEnum_type __pyx_mstate_global->__pyx_MemviewEnum_type
+#define __pyx_memoryview_type __pyx_mstate_global->__pyx_memoryview_type
+#define __pyx_memoryviewslice_type __pyx_mstate_global->__pyx_memoryviewslice_type
+#define __pyx_kp_u_ __pyx_mstate_global->__pyx_kp_u_
+#define __pyx_n_s_ASCII __pyx_mstate_global->__pyx_n_s_ASCII
+#define __pyx_kp_s_All_dimensions_preceding_dimensi __pyx_mstate_global->__pyx_kp_s_All_dimensions_preceding_dimensi
+#define __pyx_n_s_AssertionError __pyx_mstate_global->__pyx_n_s_AssertionError
+#define __pyx_kp_s_Buffer_view_does_not_expose_stri __pyx_mstate_global->__pyx_kp_s_Buffer_view_does_not_expose_stri
+#define __pyx_kp_s_Can_only_create_a_buffer_that_is __pyx_mstate_global->__pyx_kp_s_Can_only_create_a_buffer_that_is
+#define __pyx_kp_s_Cannot_assign_to_read_only_memor __pyx_mstate_global->__pyx_kp_s_Cannot_assign_to_read_only_memor
+#define __pyx_kp_s_Cannot_create_writable_memory_vi __pyx_mstate_global->__pyx_kp_s_Cannot_create_writable_memory_vi
+#define __pyx_kp_u_Cannot_index_with_type __pyx_mstate_global->__pyx_kp_u_Cannot_index_with_type
+#define __pyx_kp_s_Cannot_transpose_memoryview_with __pyx_mstate_global->__pyx_kp_s_Cannot_transpose_memoryview_with
+#define __pyx_kp_s_Dimension_d_is_not_direct __pyx_mstate_global->__pyx_kp_s_Dimension_d_is_not_direct
+#define __pyx_n_s_Ellipsis __pyx_mstate_global->__pyx_n_s_Ellipsis
+#define __pyx_kp_s_Empty_shape_tuple_for_cython_arr __pyx_mstate_global->__pyx_kp_s_Empty_shape_tuple_for_cython_arr
+#define __pyx_kp_s_Incompatible_checksums_0x_x_vs_0 __pyx_mstate_global->__pyx_kp_s_Incompatible_checksums_0x_x_vs_0
+#define __pyx_n_s_IndexError __pyx_mstate_global->__pyx_n_s_IndexError
+#define __pyx_kp_s_Index_out_of_bounds_axis_d __pyx_mstate_global->__pyx_kp_s_Index_out_of_bounds_axis_d
+#define __pyx_kp_s_Indirect_dimensions_not_supporte __pyx_mstate_global->__pyx_kp_s_Indirect_dimensions_not_supporte
+#define __pyx_kp_u_Invalid_mode_expected_c_or_fortr __pyx_mstate_global->__pyx_kp_u_Invalid_mode_expected_c_or_fortr
+#define __pyx_kp_u_Invalid_shape_in_axis __pyx_mstate_global->__pyx_kp_u_Invalid_shape_in_axis
+#define __pyx_n_s_MemoryError __pyx_mstate_global->__pyx_n_s_MemoryError
+#define __pyx_kp_s_MemoryView_of_r_at_0x_x __pyx_mstate_global->__pyx_kp_s_MemoryView_of_r_at_0x_x
+#define __pyx_kp_s_MemoryView_of_r_object __pyx_mstate_global->__pyx_kp_s_MemoryView_of_r_object
+#define __pyx_n_b_O __pyx_mstate_global->__pyx_n_b_O
+#define __pyx_kp_u_Out_of_bounds_on_buffer_access_a __pyx_mstate_global->__pyx_kp_u_Out_of_bounds_on_buffer_access_a
+#define __pyx_n_s_PickleError __pyx_mstate_global->__pyx_n_s_PickleError
+#define __pyx_n_s_Sequence __pyx_mstate_global->__pyx_n_s_Sequence
+#define __pyx_kp_s_Step_may_not_be_zero_axis_d __pyx_mstate_global->__pyx_kp_s_Step_may_not_be_zero_axis_d
+#define __pyx_n_s_TypeError __pyx_mstate_global->__pyx_n_s_TypeError
+#define __pyx_kp_s_Unable_to_convert_item_to_object __pyx_mstate_global->__pyx_kp_s_Unable_to_convert_item_to_object
+#define __pyx_n_s_ValueError __pyx_mstate_global->__pyx_n_s_ValueError
+#define __pyx_n_s_View_MemoryView __pyx_mstate_global->__pyx_n_s_View_MemoryView
+#define __pyx_kp_u__2 __pyx_mstate_global->__pyx_kp_u__2
+#define __pyx_n_s__24 __pyx_mstate_global->__pyx_n_s__24
+#define __pyx_n_s__3 __pyx_mstate_global->__pyx_n_s__3
+#define __pyx_kp_u__6 __pyx_mstate_global->__pyx_kp_u__6
+#define __pyx_kp_u__7 __pyx_mstate_global->__pyx_kp_u__7
+#define __pyx_n_s_abc __pyx_mstate_global->__pyx_n_s_abc
+#define __pyx_n_s_allocate_buffer __pyx_mstate_global->__pyx_n_s_allocate_buffer
+#define __pyx_kp_u_and __pyx_mstate_global->__pyx_kp_u_and
+#define __pyx_n_s_asyncio_coroutines __pyx_mstate_global->__pyx_n_s_asyncio_coroutines
+#define __pyx_n_s_base __pyx_mstate_global->__pyx_n_s_base
+#define __pyx_n_s_c __pyx_mstate_global->__pyx_n_s_c
+#define __pyx_n_u_c __pyx_mstate_global->__pyx_n_u_c
+#define __pyx_n_s_class __pyx_mstate_global->__pyx_n_s_class
+#define __pyx_n_s_class_getitem __pyx_mstate_global->__pyx_n_s_class_getitem
+#define __pyx_n_s_cline_in_traceback __pyx_mstate_global->__pyx_n_s_cline_in_traceback
+#define __pyx_n_s_collections __pyx_mstate_global->__pyx_n_s_collections
+#define __pyx_kp_s_collections_abc __pyx_mstate_global->__pyx_kp_s_collections_abc
+#define __pyx_kp_s_contiguous_and_direct __pyx_mstate_global->__pyx_kp_s_contiguous_and_direct
+#define __pyx_kp_s_contiguous_and_indirect __pyx_mstate_global->__pyx_kp_s_contiguous_and_indirect
+#define __pyx_n_s_count __pyx_mstate_global->__pyx_n_s_count
+#define __pyx_n_s_dict __pyx_mstate_global->__pyx_n_s_dict
+#define __pyx_kp_u_disable __pyx_mstate_global->__pyx_kp_u_disable
+#define __pyx_n_s_dtype_is_object __pyx_mstate_global->__pyx_n_s_dtype_is_object
+#define __pyx_kp_u_enable __pyx_mstate_global->__pyx_kp_u_enable
+#define __pyx_n_s_encode __pyx_mstate_global->__pyx_n_s_encode
+#define __pyx_n_s_enumerate __pyx_mstate_global->__pyx_n_s_enumerate
+#define __pyx_n_s_error __pyx_mstate_global->__pyx_n_s_error
+#define __pyx_n_s_faces __pyx_mstate_global->__pyx_n_s_faces
+#define __pyx_n_s_flags __pyx_mstate_global->__pyx_n_s_flags
+#define __pyx_n_s_format __pyx_mstate_global->__pyx_n_s_format
+#define __pyx_n_s_fortran __pyx_mstate_global->__pyx_n_s_fortran
+#define __pyx_n_u_fortran __pyx_mstate_global->__pyx_n_u_fortran
+#define __pyx_kp_u_gc __pyx_mstate_global->__pyx_kp_u_gc
+#define __pyx_n_s_getstate __pyx_mstate_global->__pyx_n_s_getstate
+#define __pyx_kp_u_got __pyx_mstate_global->__pyx_kp_u_got
+#define __pyx_kp_u_got_differing_extents_in_dimensi __pyx_mstate_global->__pyx_kp_u_got_differing_extents_in_dimensi
+#define __pyx_n_s_id __pyx_mstate_global->__pyx_n_s_id
+#define __pyx_n_s_import __pyx_mstate_global->__pyx_n_s_import
+#define __pyx_n_s_index __pyx_mstate_global->__pyx_n_s_index
+#define __pyx_n_s_initializing __pyx_mstate_global->__pyx_n_s_initializing
+#define __pyx_n_s_is_coroutine __pyx_mstate_global->__pyx_n_s_is_coroutine
+#define __pyx_kp_u_isenabled __pyx_mstate_global->__pyx_kp_u_isenabled
+#define __pyx_n_s_itemsize __pyx_mstate_global->__pyx_n_s_itemsize
+#define __pyx_kp_s_itemsize_0_for_cython_array __pyx_mstate_global->__pyx_kp_s_itemsize_0_for_cython_array
+#define __pyx_n_s_main __pyx_mstate_global->__pyx_n_s_main
+#define __pyx_n_s_memview __pyx_mstate_global->__pyx_n_s_memview
+#define __pyx_n_s_mode __pyx_mstate_global->__pyx_n_s_mode
+#define __pyx_n_s_name __pyx_mstate_global->__pyx_n_s_name
+#define __pyx_n_s_name_2 __pyx_mstate_global->__pyx_n_s_name_2
+#define __pyx_n_s_ndim __pyx_mstate_global->__pyx_n_s_ndim
+#define __pyx_n_s_new __pyx_mstate_global->__pyx_n_s_new
+#define __pyx_kp_s_no_default___reduce___due_to_non __pyx_mstate_global->__pyx_kp_s_no_default___reduce___due_to_non
+#define __pyx_n_s_obj __pyx_mstate_global->__pyx_n_s_obj
+#define __pyx_n_s_occ __pyx_mstate_global->__pyx_n_s_occ
+#define __pyx_n_s_occupancies __pyx_mstate_global->__pyx_n_s_occupancies
+#define __pyx_n_s_pack __pyx_mstate_global->__pyx_n_s_pack
+#define __pyx_n_s_pickle __pyx_mstate_global->__pyx_n_s_pickle
+#define __pyx_n_s_pyx_PickleError __pyx_mstate_global->__pyx_n_s_pyx_PickleError
+#define __pyx_n_s_pyx_checksum __pyx_mstate_global->__pyx_n_s_pyx_checksum
+#define __pyx_n_s_pyx_result __pyx_mstate_global->__pyx_n_s_pyx_result
+#define __pyx_n_s_pyx_state __pyx_mstate_global->__pyx_n_s_pyx_state
+#define __pyx_n_s_pyx_type __pyx_mstate_global->__pyx_n_s_pyx_type
+#define __pyx_n_s_pyx_unpickle_Enum __pyx_mstate_global->__pyx_n_s_pyx_unpickle_Enum
+#define __pyx_n_s_pyx_vtable __pyx_mstate_global->__pyx_n_s_pyx_vtable
+#define __pyx_n_s_range __pyx_mstate_global->__pyx_n_s_range
+#define __pyx_n_s_reduce __pyx_mstate_global->__pyx_n_s_reduce
+#define __pyx_n_s_reduce_cython __pyx_mstate_global->__pyx_n_s_reduce_cython
+#define __pyx_n_s_reduce_ex __pyx_mstate_global->__pyx_n_s_reduce_ex
+#define __pyx_n_s_register __pyx_mstate_global->__pyx_n_s_register
+#define __pyx_n_s_setstate __pyx_mstate_global->__pyx_n_s_setstate
+#define __pyx_n_s_setstate_cython __pyx_mstate_global->__pyx_n_s_setstate_cython
+#define __pyx_n_s_shape __pyx_mstate_global->__pyx_n_s_shape
+#define __pyx_n_s_size __pyx_mstate_global->__pyx_n_s_size
+#define __pyx_n_s_spec __pyx_mstate_global->__pyx_n_s_spec
+#define __pyx_n_s_start __pyx_mstate_global->__pyx_n_s_start
+#define __pyx_n_s_step __pyx_mstate_global->__pyx_n_s_step
+#define __pyx_n_s_stop __pyx_mstate_global->__pyx_n_s_stop
+#define __pyx_kp_s_strided_and_direct __pyx_mstate_global->__pyx_kp_s_strided_and_direct
+#define __pyx_kp_s_strided_and_direct_or_indirect __pyx_mstate_global->__pyx_kp_s_strided_and_direct_or_indirect
+#define __pyx_kp_s_strided_and_indirect __pyx_mstate_global->__pyx_kp_s_strided_and_indirect
+#define __pyx_kp_s_stringsource __pyx_mstate_global->__pyx_kp_s_stringsource
+#define __pyx_n_s_struct __pyx_mstate_global->__pyx_n_s_struct
+#define __pyx_n_s_sys __pyx_mstate_global->__pyx_n_s_sys
+#define __pyx_n_s_test __pyx_mstate_global->__pyx_n_s_test
+#define __pyx_n_s_triverts __pyx_mstate_global->__pyx_n_s_triverts
+#define __pyx_kp_s_unable_to_allocate_array_data __pyx_mstate_global->__pyx_kp_s_unable_to_allocate_array_data
+#define __pyx_kp_s_unable_to_allocate_shape_and_str __pyx_mstate_global->__pyx_kp_s_unable_to_allocate_shape_and_str
+#define __pyx_n_s_unpack __pyx_mstate_global->__pyx_n_s_unpack
+#define __pyx_n_s_update __pyx_mstate_global->__pyx_n_s_update
+#define __pyx_n_s_version_info __pyx_mstate_global->__pyx_n_s_version_info
+#define __pyx_n_s_voxelize __pyx_mstate_global->__pyx_n_s_voxelize
+#define __pyx_n_s_voxelize_mesh __pyx_mstate_global->__pyx_n_s_voxelize_mesh
+#define __pyx_kp_s_voxelize_pyx __pyx_mstate_global->__pyx_kp_s_voxelize_pyx
+#define __pyx_n_s_voxelize_triangle __pyx_mstate_global->__pyx_n_s_voxelize_triangle
+#define __pyx_int_0 __pyx_mstate_global->__pyx_int_0
+#define __pyx_int_1 __pyx_mstate_global->__pyx_int_1
+#define __pyx_int_3 __pyx_mstate_global->__pyx_int_3
+#define __pyx_int_112105877 __pyx_mstate_global->__pyx_int_112105877
+#define __pyx_int_136983863 __pyx_mstate_global->__pyx_int_136983863
+#define __pyx_int_184977713 __pyx_mstate_global->__pyx_int_184977713
+#define __pyx_int_neg_1 __pyx_mstate_global->__pyx_int_neg_1
+#define __pyx_slice__5 __pyx_mstate_global->__pyx_slice__5
+#define __pyx_tuple__4 __pyx_mstate_global->__pyx_tuple__4
+#define __pyx_tuple__8 __pyx_mstate_global->__pyx_tuple__8
+#define __pyx_tuple__9 __pyx_mstate_global->__pyx_tuple__9
+#define __pyx_tuple__10 __pyx_mstate_global->__pyx_tuple__10
+#define __pyx_tuple__11 __pyx_mstate_global->__pyx_tuple__11
+#define __pyx_tuple__12 __pyx_mstate_global->__pyx_tuple__12
+#define __pyx_tuple__13 __pyx_mstate_global->__pyx_tuple__13
+#define __pyx_tuple__14 __pyx_mstate_global->__pyx_tuple__14
+#define __pyx_tuple__15 __pyx_mstate_global->__pyx_tuple__15
+#define __pyx_tuple__16 __pyx_mstate_global->__pyx_tuple__16
+#define __pyx_tuple__17 __pyx_mstate_global->__pyx_tuple__17
+#define __pyx_tuple__18 __pyx_mstate_global->__pyx_tuple__18
+#define __pyx_tuple__20 __pyx_mstate_global->__pyx_tuple__20
+#define __pyx_tuple__22 __pyx_mstate_global->__pyx_tuple__22
+#define __pyx_codeobj__19 __pyx_mstate_global->__pyx_codeobj__19
+#define __pyx_codeobj__21 __pyx_mstate_global->__pyx_codeobj__21
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+/* "View.MemoryView":131
+ *         cdef bint dtype_is_object
  * 
+ *     def __cinit__(array self, tuple shape, Py_ssize_t itemsize, format not None,             # <<<<<<<<<<<<<<
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+static int __pyx_array___cinit__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
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+  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
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   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
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   {
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         case  0: break;
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+          PyObject* value = __Pyx_GetKwValue_VARARGS(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_mode);
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+          else if (unlikely(PyErr_Occurred())) __PYX_ERR(1, 131, __pyx_L3_error)
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+    __pyx_v_shape = ((PyObject*)values[0]);
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+    } else {
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   /* function exit code */
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-static void *__pyx_align_pointer(void *__pyx_v_memory, size_t __pyx_v_alignment) {
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-  /* "View.MemoryView":300
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   int __pyx_v_flags;
   int __pyx_v_dtype_is_object;
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   int __pyx_clineno = 0;
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-      switch (pos_args) {
-        case  3: values[2] = PyTuple_GET_ITEM(__pyx_args, 2);
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         CYTHON_FALLTHROUGH;
-        case  2: values[1] = PyTuple_GET_ITEM(__pyx_args, 1);
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         CYTHON_FALLTHROUGH;
-        case  1: values[0] = PyTuple_GET_ITEM(__pyx_args, 0);
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-      kw_args = PyDict_Size(__pyx_kwds);
-      switch (pos_args) {
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-        if (likely((values[0] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_obj)) != 0)) kw_args--;
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-        if (likely((values[1] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_flags)) != 0)) kw_args--;
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-          if (value) { values[2] = value; kw_args--; }
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       }
     } else {
-      switch (PyTuple_GET_SIZE(__pyx_args)) {
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         CYTHON_FALLTHROUGH;
-        case  2: values[1] = PyTuple_GET_ITEM(__pyx_args, 1);
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-  goto __pyx_L4_argument_unpacking_done;
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-  __Pyx_RaiseArgtupleInvalid("__cinit__", 0, 2, 3, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(1, 345, __pyx_L3_error)
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   __pyx_L3_error:;
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@@ -5347,6 +6534,12 @@ static int __pyx_memoryview___cinit__(PyObject *__pyx_v_self, PyObject *__pyx_ar
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   /* function exit code */
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+    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
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 }
@@ -5357,13 +6550,14 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview___cinit_
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   int __pyx_t_2;
   int __pyx_t_3;
-  int __pyx_t_4;
+  Py_intptr_t __pyx_t_4;
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   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
-  __Pyx_RefNannySetupContext("__cinit__", 0);
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-  /* "View.MemoryView":346
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-  /* "View.MemoryView":347
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   __pyx_v_self->flags = __pyx_v_flags;
 
-  /* "View.MemoryView":348
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-  __pyx_t_3 = (__pyx_t_2 != 0);
-  if (!__pyx_t_3) {
+  if (!__pyx_t_2) {
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+    __pyx_t_1 = __pyx_t_2;
     goto __pyx_L4_bool_binop_done;
   }
-  __pyx_t_3 = (__pyx_v_obj != Py_None);
-  __pyx_t_2 = (__pyx_t_3 != 0);
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   __pyx_L4_bool_binop_done:;
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":349
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+    __pyx_t_3 = __Pyx_GetBuffer(__pyx_v_obj, (&__pyx_v_self->view), __pyx_v_flags); if (unlikely(__pyx_t_3 == ((int)-1))) __PYX_ERR(1, 353, __pyx_L1_error)
 
-    /* "View.MemoryView":350
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-    __pyx_t_1 = ((((PyObject *)__pyx_v_self->view.obj) == NULL) != 0);
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     if (__pyx_t_1) {
 
-      /* "View.MemoryView":351
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-      /* "View.MemoryView":352
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  *                 Py_INCREF(Py_None)             # <<<<<<<<<<<<<<
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- *         global __pyx_memoryview_thread_locks_used
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       Py_INCREF(Py_None);
 
-      /* "View.MemoryView":350
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@@ -5451,7 +6643,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview___cinit_
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@@ -5460,101 +6652,120 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview___cinit_
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-  /* "View.MemoryView":355
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  * 
- *         global __pyx_memoryview_thread_locks_used
- *         if __pyx_memoryview_thread_locks_used < THREAD_LOCKS_PREALLOCATED:             # <<<<<<<<<<<<<<
- *             self.lock = __pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used]
- *             __pyx_memoryview_thread_locks_used += 1
+ *         if not __PYX_CYTHON_ATOMICS_ENABLED():             # <<<<<<<<<<<<<<
+ *             global __pyx_memoryview_thread_locks_used
+ *             if __pyx_memoryview_thread_locks_used < 8:
  */
-  __pyx_t_1 = ((__pyx_memoryview_thread_locks_used < 8) != 0);
+  __pyx_t_1 = (!__PYX_CYTHON_ATOMICS_ENABLED());
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":356
- *         global __pyx_memoryview_thread_locks_used
- *         if __pyx_memoryview_thread_locks_used < THREAD_LOCKS_PREALLOCATED:
- *             self.lock = __pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used]             # <<<<<<<<<<<<<<
- *             __pyx_memoryview_thread_locks_used += 1
- *         if self.lock is NULL:
+    /* "View.MemoryView":360
+ *         if not __PYX_CYTHON_ATOMICS_ENABLED():
+ *             global __pyx_memoryview_thread_locks_used
+ *             if __pyx_memoryview_thread_locks_used < 8:             # <<<<<<<<<<<<<<
+ *                 self.lock = __pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used]
+ *                 __pyx_memoryview_thread_locks_used += 1
  */
-    __pyx_v_self->lock = (__pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used]);
+    __pyx_t_1 = (__pyx_memoryview_thread_locks_used < 8);
+    if (__pyx_t_1) {
 
-    /* "View.MemoryView":357
- *         if __pyx_memoryview_thread_locks_used < THREAD_LOCKS_PREALLOCATED:
- *             self.lock = __pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used]
- *             __pyx_memoryview_thread_locks_used += 1             # <<<<<<<<<<<<<<
- *         if self.lock is NULL:
- *             self.lock = PyThread_allocate_lock()
+      /* "View.MemoryView":361
+ *             global __pyx_memoryview_thread_locks_used
+ *             if __pyx_memoryview_thread_locks_used < 8:
+ *                 self.lock = __pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used]             # <<<<<<<<<<<<<<
+ *                 __pyx_memoryview_thread_locks_used += 1
+ *             if self.lock is NULL:
  */
-    __pyx_memoryview_thread_locks_used = (__pyx_memoryview_thread_locks_used + 1);
+      __pyx_v_self->lock = (__pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used]);
 
-    /* "View.MemoryView":355
- * 
- *         global __pyx_memoryview_thread_locks_used
- *         if __pyx_memoryview_thread_locks_used < THREAD_LOCKS_PREALLOCATED:             # <<<<<<<<<<<<<<
- *             self.lock = __pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used]
- *             __pyx_memoryview_thread_locks_used += 1
+      /* "View.MemoryView":362
+ *             if __pyx_memoryview_thread_locks_used < 8:
+ *                 self.lock = __pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used]
+ *                 __pyx_memoryview_thread_locks_used += 1             # <<<<<<<<<<<<<<
+ *             if self.lock is NULL:
+ *                 self.lock = PyThread_allocate_lock()
  */
-  }
+      __pyx_memoryview_thread_locks_used = (__pyx_memoryview_thread_locks_used + 1);
 
-  /* "View.MemoryView":358
- *             self.lock = __pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used]
- *             __pyx_memoryview_thread_locks_used += 1
- *         if self.lock is NULL:             # <<<<<<<<<<<<<<
- *             self.lock = PyThread_allocate_lock()
+      /* "View.MemoryView":360
+ *         if not __PYX_CYTHON_ATOMICS_ENABLED():
+ *             global __pyx_memoryview_thread_locks_used
+ *             if __pyx_memoryview_thread_locks_used < 8:             # <<<<<<<<<<<<<<
+ *                 self.lock = __pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used]
+ *                 __pyx_memoryview_thread_locks_used += 1
+ */
+    }
+
+    /* "View.MemoryView":363
+ *                 self.lock = __pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used]
+ *                 __pyx_memoryview_thread_locks_used += 1
+ *             if self.lock is NULL:             # <<<<<<<<<<<<<<
+ *                 self.lock = PyThread_allocate_lock()
+ *                 if self.lock is NULL:
+ */
+    __pyx_t_1 = (__pyx_v_self->lock == NULL);
+    if (__pyx_t_1) {
+
+      /* "View.MemoryView":364
+ *                 __pyx_memoryview_thread_locks_used += 1
  *             if self.lock is NULL:
+ *                 self.lock = PyThread_allocate_lock()             # <<<<<<<<<<<<<<
+ *                 if self.lock is NULL:
+ *                     raise MemoryError
  */
-  __pyx_t_1 = ((__pyx_v_self->lock == NULL) != 0);
-  if (__pyx_t_1) {
+      __pyx_v_self->lock = PyThread_allocate_lock();
 
-    /* "View.MemoryView":359
- *             __pyx_memoryview_thread_locks_used += 1
- *         if self.lock is NULL:
- *             self.lock = PyThread_allocate_lock()             # <<<<<<<<<<<<<<
+      /* "View.MemoryView":365
  *             if self.lock is NULL:
- *                 raise MemoryError
+ *                 self.lock = PyThread_allocate_lock()
+ *                 if self.lock is NULL:             # <<<<<<<<<<<<<<
+ *                     raise MemoryError
+ * 
  */
-    __pyx_v_self->lock = PyThread_allocate_lock();
+      __pyx_t_1 = (__pyx_v_self->lock == NULL);
+      if (unlikely(__pyx_t_1)) {
 
-    /* "View.MemoryView":360
- *         if self.lock is NULL:
- *             self.lock = PyThread_allocate_lock()
- *             if self.lock is NULL:             # <<<<<<<<<<<<<<
- *                 raise MemoryError
+        /* "View.MemoryView":366
+ *                 self.lock = PyThread_allocate_lock()
+ *                 if self.lock is NULL:
+ *                     raise MemoryError             # <<<<<<<<<<<<<<
  * 
+ *         if flags & PyBUF_FORMAT:
  */
-    __pyx_t_1 = ((__pyx_v_self->lock == NULL) != 0);
-    if (unlikely(__pyx_t_1)) {
+        PyErr_NoMemory(); __PYX_ERR(1, 366, __pyx_L1_error)
 
-      /* "View.MemoryView":361
- *             self.lock = PyThread_allocate_lock()
+        /* "View.MemoryView":365
  *             if self.lock is NULL:
- *                 raise MemoryError             # <<<<<<<<<<<<<<
+ *                 self.lock = PyThread_allocate_lock()
+ *                 if self.lock is NULL:             # <<<<<<<<<<<<<<
+ *                     raise MemoryError
  * 
- *         if flags & PyBUF_FORMAT:
  */
-      PyErr_NoMemory(); __PYX_ERR(1, 361, __pyx_L1_error)
+      }
 
-      /* "View.MemoryView":360
- *         if self.lock is NULL:
- *             self.lock = PyThread_allocate_lock()
+      /* "View.MemoryView":363
+ *                 self.lock = __pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used]
+ *                 __pyx_memoryview_thread_locks_used += 1
  *             if self.lock is NULL:             # <<<<<<<<<<<<<<
- *                 raise MemoryError
- * 
+ *                 self.lock = PyThread_allocate_lock()
+ *                 if self.lock is NULL:
  */
     }
 
     /* "View.MemoryView":358
- *             self.lock = __pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used]
- *             __pyx_memoryview_thread_locks_used += 1
- *         if self.lock is NULL:             # <<<<<<<<<<<<<<
- *             self.lock = PyThread_allocate_lock()
- *             if self.lock is NULL:
+ *                 Py_INCREF(Py_None)
+ * 
+ *         if not __PYX_CYTHON_ATOMICS_ENABLED():             # <<<<<<<<<<<<<<
+ *             global __pyx_memoryview_thread_locks_used
+ *             if __pyx_memoryview_thread_locks_used < 8:
  */
   }
 
-  /* "View.MemoryView":363
- *                 raise MemoryError
+  /* "View.MemoryView":368
+ *                     raise MemoryError
  * 
  *         if flags & PyBUF_FORMAT:             # <<<<<<<<<<<<<<
  *             self.dtype_is_object = (self.view.format[0] == b'O' and self.view.format[1] == b'\0')
@@ -5563,65 +6774,81 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview___cinit_
   __pyx_t_1 = ((__pyx_v_flags & PyBUF_FORMAT) != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":364
+    /* "View.MemoryView":369
  * 
  *         if flags & PyBUF_FORMAT:
  *             self.dtype_is_object = (self.view.format[0] == b'O' and self.view.format[1] == b'\0')             # <<<<<<<<<<<<<<
  *         else:
  *             self.dtype_is_object = dtype_is_object
  */
-    __pyx_t_2 = (((__pyx_v_self->view.format[0]) == 'O') != 0);
+    __pyx_t_2 = ((__pyx_v_self->view.format[0]) == 'O');
     if (__pyx_t_2) {
     } else {
       __pyx_t_1 = __pyx_t_2;
-      goto __pyx_L11_bool_binop_done;
+      goto __pyx_L12_bool_binop_done;
     }
-    __pyx_t_2 = (((__pyx_v_self->view.format[1]) == '\x00') != 0);
+    __pyx_t_2 = ((__pyx_v_self->view.format[1]) == '\x00');
     __pyx_t_1 = __pyx_t_2;
-    __pyx_L11_bool_binop_done:;
+    __pyx_L12_bool_binop_done:;
     __pyx_v_self->dtype_is_object = __pyx_t_1;
 
-    /* "View.MemoryView":363
- *                 raise MemoryError
+    /* "View.MemoryView":368
+ *                     raise MemoryError
  * 
  *         if flags & PyBUF_FORMAT:             # <<<<<<<<<<<<<<
  *             self.dtype_is_object = (self.view.format[0] == b'O' and self.view.format[1] == b'\0')
  *         else:
  */
-    goto __pyx_L10;
+    goto __pyx_L11;
   }
 
-  /* "View.MemoryView":366
+  /* "View.MemoryView":371
  *             self.dtype_is_object = (self.view.format[0] == b'O' and self.view.format[1] == b'\0')
  *         else:
  *             self.dtype_is_object = dtype_is_object             # <<<<<<<<<<<<<<
  * 
- *         self.acquisition_count_aligned_p = <__pyx_atomic_int *> align_pointer(
+ *         assert <Py_intptr_t><void*>(&self.acquisition_count) % sizeof(__pyx_atomic_int_type) == 0
  */
   /*else*/ {
     __pyx_v_self->dtype_is_object = __pyx_v_dtype_is_object;
   }
-  __pyx_L10:;
+  __pyx_L11:;
 
-  /* "View.MemoryView":368
+  /* "View.MemoryView":373
  *             self.dtype_is_object = dtype_is_object
  * 
- *         self.acquisition_count_aligned_p = <__pyx_atomic_int *> align_pointer(             # <<<<<<<<<<<<<<
- *                   <void *> &self.acquisition_count[0], sizeof(__pyx_atomic_int))
+ *         assert <Py_intptr_t><void*>(&self.acquisition_count) % sizeof(__pyx_atomic_int_type) == 0             # <<<<<<<<<<<<<<
  *         self.typeinfo = NULL
+ * 
  */
-  __pyx_v_self->acquisition_count_aligned_p = ((__pyx_atomic_int *)__pyx_align_pointer(((void *)(&(__pyx_v_self->acquisition_count[0]))), (sizeof(__pyx_atomic_int))));
+  #ifndef CYTHON_WITHOUT_ASSERTIONS
+  if (unlikely(__pyx_assertions_enabled())) {
+    __pyx_t_4 = ((Py_intptr_t)((void *)(&__pyx_v_self->acquisition_count)));
+    __pyx_t_5 = (sizeof(__pyx_atomic_int_type));
+    if (unlikely(__pyx_t_5 == 0)) {
+      PyErr_SetString(PyExc_ZeroDivisionError, "integer division or modulo by zero");
+      __PYX_ERR(1, 373, __pyx_L1_error)
+    }
+    __pyx_t_1 = ((__pyx_t_4 % __pyx_t_5) == 0);
+    if (unlikely(!__pyx_t_1)) {
+      __Pyx_Raise(__pyx_builtin_AssertionError, 0, 0, 0);
+      __PYX_ERR(1, 373, __pyx_L1_error)
+    }
+  }
+  #else
+  if ((1)); else __PYX_ERR(1, 373, __pyx_L1_error)
+  #endif
 
-  /* "View.MemoryView":370
- *         self.acquisition_count_aligned_p = <__pyx_atomic_int *> align_pointer(
- *                   <void *> &self.acquisition_count[0], sizeof(__pyx_atomic_int))
+  /* "View.MemoryView":374
+ * 
+ *         assert <Py_intptr_t><void*>(&self.acquisition_count) % sizeof(__pyx_atomic_int_type) == 0
  *         self.typeinfo = NULL             # <<<<<<<<<<<<<<
  * 
  *     def __dealloc__(memoryview self):
  */
   __pyx_v_self->typeinfo = NULL;
 
-  /* "View.MemoryView":345
+  /* "View.MemoryView":349
  *     cdef __Pyx_TypeInfo *typeinfo
  * 
  *     def __cinit__(memoryview self, object obj, int flags, bint dtype_is_object=False):             # <<<<<<<<<<<<<<
@@ -5640,7 +6867,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview___cinit_
   return __pyx_r;
 }
 
-/* "View.MemoryView":372
+/* "View.MemoryView":376
  *         self.typeinfo = NULL
  * 
  *     def __dealloc__(memoryview self):             # <<<<<<<<<<<<<<
@@ -5651,8 +6878,10 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview___cinit_
 /* Python wrapper */
 static void __pyx_memoryview___dealloc__(PyObject *__pyx_v_self); /*proto*/
 static void __pyx_memoryview___dealloc__(PyObject *__pyx_v_self) {
+  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__dealloc__ (wrapper)", 0);
+  __pyx_kwvalues = __Pyx_KwValues_VARARGS(__pyx_args, __pyx_nargs);
   __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_2__dealloc__(((struct __pyx_memoryview_obj *)__pyx_v_self));
 
   /* function exit code */
@@ -5661,17 +6890,14 @@ static void __pyx_memoryview___dealloc__(PyObject *__pyx_v_self) {
 
 static void __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_2__dealloc__(struct __pyx_memoryview_obj *__pyx_v_self) {
   int __pyx_v_i;
-  __Pyx_RefNannyDeclarations
   int __pyx_t_1;
   int __pyx_t_2;
   int __pyx_t_3;
   int __pyx_t_4;
-  int __pyx_t_5;
+  PyThread_type_lock __pyx_t_5;
   PyThread_type_lock __pyx_t_6;
-  PyThread_type_lock __pyx_t_7;
-  __Pyx_RefNannySetupContext("__dealloc__", 0);
 
-  /* "View.MemoryView":373
+  /* "View.MemoryView":377
  * 
  *     def __dealloc__(memoryview self):
  *         if self.obj is not None:             # <<<<<<<<<<<<<<
@@ -5679,10 +6905,9 @@ static void __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_2__deal
  *         elif (<__pyx_buffer *> &self.view).obj == Py_None:
  */
   __pyx_t_1 = (__pyx_v_self->obj != Py_None);
-  __pyx_t_2 = (__pyx_t_1 != 0);
-  if (__pyx_t_2) {
+  if (__pyx_t_1) {
 
-    /* "View.MemoryView":374
+    /* "View.MemoryView":378
  *     def __dealloc__(memoryview self):
  *         if self.obj is not None:
  *             __Pyx_ReleaseBuffer(&self.view)             # <<<<<<<<<<<<<<
@@ -5691,7 +6916,7 @@ static void __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_2__deal
  */
     __Pyx_ReleaseBuffer((&__pyx_v_self->view));
 
-    /* "View.MemoryView":373
+    /* "View.MemoryView":377
  * 
  *     def __dealloc__(memoryview self):
  *         if self.obj is not None:             # <<<<<<<<<<<<<<
@@ -5701,17 +6926,17 @@ static void __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_2__deal
     goto __pyx_L3;
   }
 
-  /* "View.MemoryView":375
+  /* "View.MemoryView":379
  *         if self.obj is not None:
  *             __Pyx_ReleaseBuffer(&self.view)
  *         elif (<__pyx_buffer *> &self.view).obj == Py_None:             # <<<<<<<<<<<<<<
  * 
  *             (<__pyx_buffer *> &self.view).obj = NULL
  */
-  __pyx_t_2 = ((((Py_buffer *)(&__pyx_v_self->view))->obj == Py_None) != 0);
-  if (__pyx_t_2) {
+  __pyx_t_1 = (((Py_buffer *)(&__pyx_v_self->view))->obj == Py_None);
+  if (__pyx_t_1) {
 
-    /* "View.MemoryView":377
+    /* "View.MemoryView":381
  *         elif (<__pyx_buffer *> &self.view).obj == Py_None:
  * 
  *             (<__pyx_buffer *> &self.view).obj = NULL             # <<<<<<<<<<<<<<
@@ -5720,7 +6945,7 @@ static void __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_2__deal
  */
     ((Py_buffer *)(&__pyx_v_self->view))->obj = NULL;
 
-    /* "View.MemoryView":378
+    /* "View.MemoryView":382
  * 
  *             (<__pyx_buffer *> &self.view).obj = NULL
  *             Py_DECREF(Py_None)             # <<<<<<<<<<<<<<
@@ -5729,7 +6954,7 @@ static void __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_2__deal
  */
     Py_DECREF(Py_None);
 
-    /* "View.MemoryView":375
+    /* "View.MemoryView":379
  *         if self.obj is not None:
  *             __Pyx_ReleaseBuffer(&self.view)
  *         elif (<__pyx_buffer *> &self.view).obj == Py_None:             # <<<<<<<<<<<<<<
@@ -5739,39 +6964,39 @@ static void __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_2__deal
   }
   __pyx_L3:;
 
-  /* "View.MemoryView":382
+  /* "View.MemoryView":386
  *         cdef int i
  *         global __pyx_memoryview_thread_locks_used
  *         if self.lock != NULL:             # <<<<<<<<<<<<<<
  *             for i in range(__pyx_memoryview_thread_locks_used):
  *                 if __pyx_memoryview_thread_locks[i] is self.lock:
  */
-  __pyx_t_2 = ((__pyx_v_self->lock != NULL) != 0);
-  if (__pyx_t_2) {
+  __pyx_t_1 = (__pyx_v_self->lock != NULL);
+  if (__pyx_t_1) {
 
-    /* "View.MemoryView":383
+    /* "View.MemoryView":387
  *         global __pyx_memoryview_thread_locks_used
  *         if self.lock != NULL:
  *             for i in range(__pyx_memoryview_thread_locks_used):             # <<<<<<<<<<<<<<
  *                 if __pyx_memoryview_thread_locks[i] is self.lock:
  *                     __pyx_memoryview_thread_locks_used -= 1
  */
-    __pyx_t_3 = __pyx_memoryview_thread_locks_used;
-    __pyx_t_4 = __pyx_t_3;
-    for (__pyx_t_5 = 0; __pyx_t_5 < __pyx_t_4; __pyx_t_5+=1) {
-      __pyx_v_i = __pyx_t_5;
+    __pyx_t_2 = __pyx_memoryview_thread_locks_used;
+    __pyx_t_3 = __pyx_t_2;
+    for (__pyx_t_4 = 0; __pyx_t_4 < __pyx_t_3; __pyx_t_4+=1) {
+      __pyx_v_i = __pyx_t_4;
 
-      /* "View.MemoryView":384
+      /* "View.MemoryView":388
  *         if self.lock != NULL:
  *             for i in range(__pyx_memoryview_thread_locks_used):
  *                 if __pyx_memoryview_thread_locks[i] is self.lock:             # <<<<<<<<<<<<<<
  *                     __pyx_memoryview_thread_locks_used -= 1
  *                     if i != __pyx_memoryview_thread_locks_used:
  */
-      __pyx_t_2 = (((__pyx_memoryview_thread_locks[__pyx_v_i]) == __pyx_v_self->lock) != 0);
-      if (__pyx_t_2) {
+      __pyx_t_1 = ((__pyx_memoryview_thread_locks[__pyx_v_i]) == __pyx_v_self->lock);
+      if (__pyx_t_1) {
 
-        /* "View.MemoryView":385
+        /* "View.MemoryView":389
  *             for i in range(__pyx_memoryview_thread_locks_used):
  *                 if __pyx_memoryview_thread_locks[i] is self.lock:
  *                     __pyx_memoryview_thread_locks_used -= 1             # <<<<<<<<<<<<<<
@@ -5780,37 +7005,37 @@ static void __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_2__deal
  */
         __pyx_memoryview_thread_locks_used = (__pyx_memoryview_thread_locks_used - 1);
 
-        /* "View.MemoryView":386
+        /* "View.MemoryView":390
  *                 if __pyx_memoryview_thread_locks[i] is self.lock:
  *                     __pyx_memoryview_thread_locks_used -= 1
  *                     if i != __pyx_memoryview_thread_locks_used:             # <<<<<<<<<<<<<<
  *                         __pyx_memoryview_thread_locks[i], __pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used] = (
  *                             __pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used], __pyx_memoryview_thread_locks[i])
  */
-        __pyx_t_2 = ((__pyx_v_i != __pyx_memoryview_thread_locks_used) != 0);
-        if (__pyx_t_2) {
+        __pyx_t_1 = (__pyx_v_i != __pyx_memoryview_thread_locks_used);
+        if (__pyx_t_1) {
 
-          /* "View.MemoryView":388
+          /* "View.MemoryView":392
  *                     if i != __pyx_memoryview_thread_locks_used:
  *                         __pyx_memoryview_thread_locks[i], __pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used] = (
  *                             __pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used], __pyx_memoryview_thread_locks[i])             # <<<<<<<<<<<<<<
  *                     break
  *             else:
  */
-          __pyx_t_6 = (__pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used]);
-          __pyx_t_7 = (__pyx_memoryview_thread_locks[__pyx_v_i]);
+          __pyx_t_5 = (__pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used]);
+          __pyx_t_6 = (__pyx_memoryview_thread_locks[__pyx_v_i]);
 
-          /* "View.MemoryView":387
+          /* "View.MemoryView":391
  *                     __pyx_memoryview_thread_locks_used -= 1
  *                     if i != __pyx_memoryview_thread_locks_used:
  *                         __pyx_memoryview_thread_locks[i], __pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used] = (             # <<<<<<<<<<<<<<
  *                             __pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used], __pyx_memoryview_thread_locks[i])
  *                     break
  */
-          (__pyx_memoryview_thread_locks[__pyx_v_i]) = __pyx_t_6;
-          (__pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used]) = __pyx_t_7;
+          (__pyx_memoryview_thread_locks[__pyx_v_i]) = __pyx_t_5;
+          (__pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used]) = __pyx_t_6;
 
-          /* "View.MemoryView":386
+          /* "View.MemoryView":390
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@@ -5819,7 +7044,7 @@ static void __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_2__deal
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-        /* "View.MemoryView":389
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-        /* "View.MemoryView":384
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-      /* "View.MemoryView":391
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-    /* "View.MemoryView":382
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@@ -5859,7 +7084,7 @@ static void __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_2__deal
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-  /* "View.MemoryView":372
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-  /* "View.MemoryView":395
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-  /* "View.MemoryView":397
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-    /* "View.MemoryView":398
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+    __pyx_t_6 = __Pyx_PyIndex_AsSsize_t(__pyx_v_idx); if (unlikely((__pyx_t_6 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(1, 402, __pyx_L1_error)
+    __pyx_t_7 = __pyx_pybuffer_index((&__pyx_v_self->view), __pyx_v_itemp, __pyx_t_6, __pyx_v_dim); if (unlikely(__pyx_t_7 == ((char *)NULL))) __PYX_ERR(1, 402, __pyx_L1_error)
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-    /* "View.MemoryView":397
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-  /* "View.MemoryView":400
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-  /* "View.MemoryView":393
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 }
 
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 static PyObject *__pyx_memoryview___getitem__(PyObject *__pyx_v_self, PyObject *__pyx_v_index) {
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-  PyObject *__pyx_t_5 = NULL;
-  char *__pyx_t_6;
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-    /* "View.MemoryView":405
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 static int __pyx_memoryview___setitem__(PyObject *__pyx_v_self, PyObject *__pyx_v_index, PyObject *__pyx_v_value); /*proto*/
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+        __pyx_t_7 = __Pyx_PyObject_Call(((PyObject *)__pyx_memoryview_type), __pyx_t_8, NULL); if (unlikely(!__pyx_t_7)) __PYX_ERR(1, 438, __pyx_L4_error)
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         __pyx_t_7 = 0;
 
-        /* "View.MemoryView":433
+        /* "View.MemoryView":437
  *     cdef is_slice(self, obj):
  *         if not isinstance(obj, memoryview):
  *             try:             # <<<<<<<<<<<<<<
@@ -6540,7 +7775,7 @@ static PyObject *__pyx_memoryview_is_slice(struct __pyx_memoryview_obj *__pyx_v_
       __Pyx_XDECREF(__pyx_t_7); __pyx_t_7 = 0;
       __Pyx_XDECREF(__pyx_t_8); __pyx_t_8 = 0;
 
-      /* "View.MemoryView":436
+      /* "View.MemoryView":440
  *                 obj = memoryview(obj, self.flags & ~PyBUF_WRITABLE | PyBUF_ANY_CONTIGUOUS,
  *                                  self.dtype_is_object)
  *             except TypeError:             # <<<<<<<<<<<<<<
@@ -6550,12 +7785,12 @@ static PyObject *__pyx_memoryview_is_slice(struct __pyx_memoryview_obj *__pyx_v_
       __pyx_t_9 = __Pyx_PyErr_ExceptionMatches(__pyx_builtin_TypeError);
       if (__pyx_t_9) {
         __Pyx_AddTraceback("View.MemoryView.memoryview.is_slice", __pyx_clineno, __pyx_lineno, __pyx_filename);
-        if (__Pyx_GetException(&__pyx_t_7, &__pyx_t_8, &__pyx_t_6) < 0) __PYX_ERR(1, 436, __pyx_L6_except_error)
-        __Pyx_GOTREF(__pyx_t_7);
-        __Pyx_GOTREF(__pyx_t_8);
-        __Pyx_GOTREF(__pyx_t_6);
+        if (__Pyx_GetException(&__pyx_t_7, &__pyx_t_8, &__pyx_t_6) < 0) __PYX_ERR(1, 440, __pyx_L6_except_error)
+        __Pyx_XGOTREF(__pyx_t_7);
+        __Pyx_XGOTREF(__pyx_t_8);
+        __Pyx_XGOTREF(__pyx_t_6);
 
-        /* "View.MemoryView":437
+        /* "View.MemoryView":441
  *                                  self.dtype_is_object)
  *             except TypeError:
  *                 return None             # <<<<<<<<<<<<<<
@@ -6570,15 +7805,15 @@ static PyObject *__pyx_memoryview_is_slice(struct __pyx_memoryview_obj *__pyx_v_
         goto __pyx_L7_except_return;
       }
       goto __pyx_L6_except_error;
-      __pyx_L6_except_error:;
 
-      /* "View.MemoryView":433
+      /* "View.MemoryView":437
  *     cdef is_slice(self, obj):
  *         if not isinstance(obj, memoryview):
  *             try:             # <<<<<<<<<<<<<<
  *                 obj = memoryview(obj, self.flags & ~PyBUF_WRITABLE | PyBUF_ANY_CONTIGUOUS,
  *                                  self.dtype_is_object)
  */
+      __pyx_L6_except_error:;
       __Pyx_XGIVEREF(__pyx_t_3);
       __Pyx_XGIVEREF(__pyx_t_4);
       __Pyx_XGIVEREF(__pyx_t_5);
@@ -6593,7 +7828,7 @@ static PyObject *__pyx_memoryview_is_slice(struct __pyx_memoryview_obj *__pyx_v_
       __pyx_L9_try_end:;
     }
 
-    /* "View.MemoryView":432
+    /* "View.MemoryView":436
  * 
  *     cdef is_slice(self, obj):
  *         if not isinstance(obj, memoryview):             # <<<<<<<<<<<<<<
@@ -6602,7 +7837,7 @@ static PyObject *__pyx_memoryview_is_slice(struct __pyx_memoryview_obj *__pyx_v_
  */
   }
 
-  /* "View.MemoryView":439
+  /* "View.MemoryView":443
  *                 return None
  * 
  *         return obj             # <<<<<<<<<<<<<<
@@ -6614,7 +7849,7 @@ static PyObject *__pyx_memoryview_is_slice(struct __pyx_memoryview_obj *__pyx_v_
   __pyx_r = __pyx_v_obj;
   goto __pyx_L0;
 
-  /* "View.MemoryView":431
+  /* "View.MemoryView":435
  *             self.setitem_indexed(index, value)
  * 
  *     cdef is_slice(self, obj):             # <<<<<<<<<<<<<<
@@ -6636,7 +7871,7 @@ static PyObject *__pyx_memoryview_is_slice(struct __pyx_memoryview_obj *__pyx_v_
   return __pyx_r;
 }
 
-/* "View.MemoryView":441
+/* "View.MemoryView":445
  *         return obj
  * 
  *     cdef setitem_slice_assignment(self, dst, src):             # <<<<<<<<<<<<<<
@@ -6647,65 +7882,60 @@ static PyObject *__pyx_memoryview_is_slice(struct __pyx_memoryview_obj *__pyx_v_
 static PyObject *__pyx_memoryview_setitem_slice_assignment(struct __pyx_memoryview_obj *__pyx_v_self, PyObject *__pyx_v_dst, PyObject *__pyx_v_src) {
   __Pyx_memviewslice __pyx_v_dst_slice;
   __Pyx_memviewslice __pyx_v_src_slice;
+  __Pyx_memviewslice __pyx_v_msrc;
+  __Pyx_memviewslice __pyx_v_mdst;
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-  __Pyx_memviewslice *__pyx_t_2;
-  PyObject *__pyx_t_3 = NULL;
+  PyObject *__pyx_t_2 = NULL;
+  int __pyx_t_3;
   int __pyx_t_4;
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-  int __pyx_t_6;
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-  __Pyx_RefNannySetupContext("setitem_slice_assignment", 0);
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-  /* "View.MemoryView":445
+  /* "View.MemoryView":448
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  *         cdef __Pyx_memviewslice src_slice
+ *         cdef __Pyx_memviewslice msrc = get_slice_from_memview(src, &src_slice)[0]             # <<<<<<<<<<<<<<
+ *         cdef __Pyx_memviewslice mdst = get_slice_from_memview(dst, &dst_slice)[0]
  * 
- *         memoryview_copy_contents(get_slice_from_memview(src, &src_slice)[0],             # <<<<<<<<<<<<<<
- *                                  get_slice_from_memview(dst, &dst_slice)[0],
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-  /* "View.MemoryView":446
- * 
- *         memoryview_copy_contents(get_slice_from_memview(src, &src_slice)[0],
- *                                  get_slice_from_memview(dst, &dst_slice)[0],             # <<<<<<<<<<<<<<
- *                                  src.ndim, dst.ndim, self.dtype_is_object)
+  /* "View.MemoryView":449
+ *         cdef __Pyx_memviewslice src_slice
+ *         cdef __Pyx_memviewslice msrc = get_slice_from_memview(src, &src_slice)[0]
+ *         cdef __Pyx_memviewslice mdst = get_slice_from_memview(dst, &dst_slice)[0]             # <<<<<<<<<<<<<<
  * 
+ *         memoryview_copy_contents(msrc, mdst, src.ndim, dst.ndim, self.dtype_is_object)
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-  /* "View.MemoryView":447
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- *                                  get_slice_from_memview(dst, &dst_slice)[0],
- *                                  src.ndim, dst.ndim, self.dtype_is_object)             # <<<<<<<<<<<<<<
+  /* "View.MemoryView":451
+ *         cdef __Pyx_memviewslice mdst = get_slice_from_memview(dst, &dst_slice)[0]
+ * 
+ *         memoryview_copy_contents(msrc, mdst, src.ndim, dst.ndim, self.dtype_is_object)             # <<<<<<<<<<<<<<
  * 
  *     cdef setitem_slice_assign_scalar(self, memoryview dst, value):
  */
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_src, __pyx_n_s_ndim); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 447, __pyx_L1_error)
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-  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_src, __pyx_n_s_ndim); if (unlikely(!__pyx_t_2)) __PYX_ERR(1, 451, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_3 = __Pyx_PyInt_As_int(__pyx_t_2); if (unlikely((__pyx_t_3 == (int)-1) && PyErr_Occurred())) __PYX_ERR(1, 451, __pyx_L1_error)
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_dst, __pyx_n_s_ndim); if (unlikely(!__pyx_t_2)) __PYX_ERR(1, 451, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_2);
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+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_t_5 = __pyx_memoryview_copy_contents(__pyx_v_msrc, __pyx_v_mdst, __pyx_t_3, __pyx_t_4, __pyx_v_self->dtype_is_object); if (unlikely(__pyx_t_5 == ((int)-1))) __PYX_ERR(1, 451, __pyx_L1_error)
 
   /* "View.MemoryView":445
- *         cdef __Pyx_memviewslice src_slice
- * 
- *         memoryview_copy_contents(get_slice_from_memview(src, &src_slice)[0],             # <<<<<<<<<<<<<<
- *                                  get_slice_from_memview(dst, &dst_slice)[0],
- *                                  src.ndim, dst.ndim, self.dtype_is_object)
- */
-  __pyx_t_6 = __pyx_memoryview_copy_contents((__pyx_t_1[0]), (__pyx_t_2[0]), __pyx_t_4, __pyx_t_5, __pyx_v_self->dtype_is_object); if (unlikely(__pyx_t_6 == ((int)-1))) __PYX_ERR(1, 445, __pyx_L1_error)
-
-  /* "View.MemoryView":441
  *         return obj
  * 
  *     cdef setitem_slice_assignment(self, dst, src):             # <<<<<<<<<<<<<<
@@ -6717,7 +7947,7 @@ static PyObject *__pyx_memoryview_setitem_slice_assignment(struct __pyx_memoryvi
   __pyx_r = Py_None; __Pyx_INCREF(Py_None);
   goto __pyx_L0;
   __pyx_L1_error:;
-  __Pyx_XDECREF(__pyx_t_3);
+  __Pyx_XDECREF(__pyx_t_2);
   __Pyx_AddTraceback("View.MemoryView.memoryview.setitem_slice_assignment", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = 0;
   __pyx_L0:;
@@ -6726,8 +7956,8 @@ static PyObject *__pyx_memoryview_setitem_slice_assignment(struct __pyx_memoryvi
   return __pyx_r;
 }
 
-/* "View.MemoryView":449
- *                                  src.ndim, dst.ndim, self.dtype_is_object)
+/* "View.MemoryView":453
+ *         memoryview_copy_contents(msrc, mdst, src.ndim, dst.ndim, self.dtype_is_object)
  * 
  *     cdef setitem_slice_assign_scalar(self, memoryview dst, value):             # <<<<<<<<<<<<<<
  *         cdef int array[128]
@@ -6757,9 +7987,9 @@ static PyObject *__pyx_memoryview_setitem_slice_assign_scalar(struct __pyx_memor
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
-  __Pyx_RefNannySetupContext("setitem_slice_assign_scalar", 0);
+  __Pyx_RefNannySetupContext("setitem_slice_assign_scalar", 1);
 
-  /* "View.MemoryView":451
+  /* "View.MemoryView":455
  *     cdef setitem_slice_assign_scalar(self, memoryview dst, value):
  *         cdef int array[128]
  *         cdef void *tmp = NULL             # <<<<<<<<<<<<<<
@@ -6768,27 +7998,27 @@ static PyObject *__pyx_memoryview_setitem_slice_assign_scalar(struct __pyx_memor
  */
   __pyx_v_tmp = NULL;
 
-  /* "View.MemoryView":456
+  /* "View.MemoryView":460
  *         cdef __Pyx_memviewslice *dst_slice
  *         cdef __Pyx_memviewslice tmp_slice
  *         dst_slice = get_slice_from_memview(dst, &tmp_slice)             # <<<<<<<<<<<<<<
  * 
  *         if <size_t>self.view.itemsize > sizeof(array):
  */
-  __pyx_t_1 = __pyx_memoryview_get_slice_from_memoryview(__pyx_v_dst, (&__pyx_v_tmp_slice)); if (unlikely(__pyx_t_1 == ((__Pyx_memviewslice *)NULL))) __PYX_ERR(1, 456, __pyx_L1_error)
+  __pyx_t_1 = __pyx_memoryview_get_slice_from_memoryview(__pyx_v_dst, (&__pyx_v_tmp_slice)); if (unlikely(__pyx_t_1 == ((__Pyx_memviewslice *)NULL))) __PYX_ERR(1, 460, __pyx_L1_error)
   __pyx_v_dst_slice = __pyx_t_1;
 
-  /* "View.MemoryView":458
+  /* "View.MemoryView":462
  *         dst_slice = get_slice_from_memview(dst, &tmp_slice)
  * 
  *         if <size_t>self.view.itemsize > sizeof(array):             # <<<<<<<<<<<<<<
  *             tmp = PyMem_Malloc(self.view.itemsize)
  *             if tmp == NULL:
  */
-  __pyx_t_2 = ((((size_t)__pyx_v_self->view.itemsize) > (sizeof(__pyx_v_array))) != 0);
+  __pyx_t_2 = (((size_t)__pyx_v_self->view.itemsize) > (sizeof(__pyx_v_array)));
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":459
+    /* "View.MemoryView":463
  * 
  *         if <size_t>self.view.itemsize > sizeof(array):
  *             tmp = PyMem_Malloc(self.view.itemsize)             # <<<<<<<<<<<<<<
@@ -6797,26 +8027,26 @@ static PyObject *__pyx_memoryview_setitem_slice_assign_scalar(struct __pyx_memor
  */
     __pyx_v_tmp = PyMem_Malloc(__pyx_v_self->view.itemsize);
 
-    /* "View.MemoryView":460
+    /* "View.MemoryView":464
  *         if <size_t>self.view.itemsize > sizeof(array):
  *             tmp = PyMem_Malloc(self.view.itemsize)
  *             if tmp == NULL:             # <<<<<<<<<<<<<<
  *                 raise MemoryError
  *             item = tmp
  */
-    __pyx_t_2 = ((__pyx_v_tmp == NULL) != 0);
+    __pyx_t_2 = (__pyx_v_tmp == NULL);
     if (unlikely(__pyx_t_2)) {
 
-      /* "View.MemoryView":461
+      /* "View.MemoryView":465
  *             tmp = PyMem_Malloc(self.view.itemsize)
  *             if tmp == NULL:
  *                 raise MemoryError             # <<<<<<<<<<<<<<
  *             item = tmp
  *         else:
  */
-      PyErr_NoMemory(); __PYX_ERR(1, 461, __pyx_L1_error)
+      PyErr_NoMemory(); __PYX_ERR(1, 465, __pyx_L1_error)
 
-      /* "View.MemoryView":460
+      /* "View.MemoryView":464
  *         if <size_t>self.view.itemsize > sizeof(array):
  *             tmp = PyMem_Malloc(self.view.itemsize)
  *             if tmp == NULL:             # <<<<<<<<<<<<<<
@@ -6825,7 +8055,7 @@ static PyObject *__pyx_memoryview_setitem_slice_assign_scalar(struct __pyx_memor
  */
     }
 
-    /* "View.MemoryView":462
+    /* "View.MemoryView":466
  *             if tmp == NULL:
  *                 raise MemoryError
  *             item = tmp             # <<<<<<<<<<<<<<
@@ -6834,7 +8064,7 @@ static PyObject *__pyx_memoryview_setitem_slice_assign_scalar(struct __pyx_memor
  */
     __pyx_v_item = __pyx_v_tmp;
 
-    /* "View.MemoryView":458
+    /* "View.MemoryView":462
  *         dst_slice = get_slice_from_memview(dst, &tmp_slice)
  * 
  *         if <size_t>self.view.itemsize > sizeof(array):             # <<<<<<<<<<<<<<
@@ -6844,7 +8074,7 @@ static PyObject *__pyx_memoryview_setitem_slice_assign_scalar(struct __pyx_memor
     goto __pyx_L3;
   }
 
-  /* "View.MemoryView":464
+  /* "View.MemoryView":468
  *             item = tmp
  *         else:
  *             item = <void *> array             # <<<<<<<<<<<<<<
@@ -6856,7 +8086,7 @@ static PyObject *__pyx_memoryview_setitem_slice_assign_scalar(struct __pyx_memor
   }
   __pyx_L3:;
 
-  /* "View.MemoryView":466
+  /* "View.MemoryView":470
  *             item = <void *> array
  * 
  *         try:             # <<<<<<<<<<<<<<
@@ -6865,17 +8095,16 @@ static PyObject *__pyx_memoryview_setitem_slice_assign_scalar(struct __pyx_memor
  */
   /*try:*/ {
 
-    /* "View.MemoryView":467
+    /* "View.MemoryView":471
  * 
  *         try:
  *             if self.dtype_is_object:             # <<<<<<<<<<<<<<
  *                 (<PyObject **> item)[0] = <PyObject *> value
  *             else:
  */
-    __pyx_t_2 = (__pyx_v_self->dtype_is_object != 0);
-    if (__pyx_t_2) {
+    if (__pyx_v_self->dtype_is_object) {
 
-      /* "View.MemoryView":468
+      /* "View.MemoryView":472
  *         try:
  *             if self.dtype_is_object:
  *                 (<PyObject **> item)[0] = <PyObject *> value             # <<<<<<<<<<<<<<
@@ -6884,7 +8113,7 @@ static PyObject *__pyx_memoryview_setitem_slice_assign_scalar(struct __pyx_memor
  */
       (((PyObject **)__pyx_v_item)[0]) = ((PyObject *)__pyx_v_value);
 
-      /* "View.MemoryView":467
+      /* "View.MemoryView":471
  * 
  *         try:
  *             if self.dtype_is_object:             # <<<<<<<<<<<<<<
@@ -6894,7 +8123,7 @@ static PyObject *__pyx_memoryview_setitem_slice_assign_scalar(struct __pyx_memor
       goto __pyx_L8;
     }
 
-    /* "View.MemoryView":470
+    /* "View.MemoryView":474
  *                 (<PyObject **> item)[0] = <PyObject *> value
  *             else:
  *                 self.assign_item_from_object(<char *> item, value)             # <<<<<<<<<<<<<<
@@ -6902,34 +8131,32 @@ static PyObject *__pyx_memoryview_setitem_slice_assign_scalar(struct __pyx_memor
  * 
  */
     /*else*/ {
-      __pyx_t_3 = ((struct __pyx_vtabstruct_memoryview *)__pyx_v_self->__pyx_vtab)->assign_item_from_object(__pyx_v_self, ((char *)__pyx_v_item), __pyx_v_value); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 470, __pyx_L6_error)
+      __pyx_t_3 = ((struct __pyx_vtabstruct_memoryview *)__pyx_v_self->__pyx_vtab)->assign_item_from_object(__pyx_v_self, ((char *)__pyx_v_item), __pyx_v_value); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 474, __pyx_L6_error)
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     }
     __pyx_L8:;
 
-    /* "View.MemoryView":474
+    /* "View.MemoryView":478
  * 
  * 
  *             if self.view.suboffsets != NULL:             # <<<<<<<<<<<<<<
  *                 assert_direct_dimensions(self.view.suboffsets, self.view.ndim)
  *             slice_assign_scalar(dst_slice, dst.view.ndim, self.view.itemsize,
  */
-    __pyx_t_2 = ((__pyx_v_self->view.suboffsets != NULL) != 0);
+    __pyx_t_2 = (__pyx_v_self->view.suboffsets != NULL);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":475
+      /* "View.MemoryView":479
  * 
  *             if self.view.suboffsets != NULL:
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@@ -7686,18 +8852,18 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   __pyx_t_1 = ((__pyx_v_flags & PyBUF_ND) != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":523
+    /* "View.MemoryView":527
  * 
  *         if flags & PyBUF_ND:
  *             info.shape = self.view.shape             # <<<<<<<<<<<<<<
  *         else:
  *             info.shape = NULL
  */
-    __pyx_t_4 = __pyx_v_self->view.shape;
-    __pyx_v_info->shape = __pyx_t_4;
+    __pyx_t_3 = __pyx_v_self->view.shape;
+    __pyx_v_info->shape = __pyx_t_3;
 
-    /* "View.MemoryView":522
- *             raise ValueError("Cannot create writable memory view from read-only memoryview")
+    /* "View.MemoryView":526
+ *             raise ValueError, "Cannot create writable memory view from read-only memoryview"
  * 
  *         if flags & PyBUF_ND:             # <<<<<<<<<<<<<<
  *             info.shape = self.view.shape
@@ -7706,7 +8872,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
     goto __pyx_L6;
   }
 
-  /* "View.MemoryView":525
+  /* "View.MemoryView":529
  *             info.shape = self.view.shape
  *         else:
  *             info.shape = NULL             # <<<<<<<<<<<<<<
@@ -7718,7 +8884,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   }
   __pyx_L6:;
 
-  /* "View.MemoryView":527
+  /* "View.MemoryView":531
  *             info.shape = NULL
  * 
  *         if flags & PyBUF_STRIDES:             # <<<<<<<<<<<<<<
@@ -7728,17 +8894,17 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   __pyx_t_1 = ((__pyx_v_flags & PyBUF_STRIDES) != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":528
+    /* "View.MemoryView":532
  * 
  *         if flags & PyBUF_STRIDES:
  *             info.strides = self.view.strides             # <<<<<<<<<<<<<<
  *         else:
  *             info.strides = NULL
  */
-    __pyx_t_4 = __pyx_v_self->view.strides;
-    __pyx_v_info->strides = __pyx_t_4;
+    __pyx_t_3 = __pyx_v_self->view.strides;
+    __pyx_v_info->strides = __pyx_t_3;
 
-    /* "View.MemoryView":527
+    /* "View.MemoryView":531
  *             info.shape = NULL
  * 
  *         if flags & PyBUF_STRIDES:             # <<<<<<<<<<<<<<
@@ -7748,7 +8914,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
     goto __pyx_L7;
   }
 
-  /* "View.MemoryView":530
+  /* "View.MemoryView":534
  *             info.strides = self.view.strides
  *         else:
  *             info.strides = NULL             # <<<<<<<<<<<<<<
@@ -7760,7 +8926,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   }
   __pyx_L7:;
 
-  /* "View.MemoryView":532
+  /* "View.MemoryView":536
  *             info.strides = NULL
  * 
  *         if flags & PyBUF_INDIRECT:             # <<<<<<<<<<<<<<
@@ -7770,17 +8936,17 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   __pyx_t_1 = ((__pyx_v_flags & PyBUF_INDIRECT) != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":533
+    /* "View.MemoryView":537
  * 
  *         if flags & PyBUF_INDIRECT:
  *             info.suboffsets = self.view.suboffsets             # <<<<<<<<<<<<<<
  *         else:
  *             info.suboffsets = NULL
  */
-    __pyx_t_4 = __pyx_v_self->view.suboffsets;
-    __pyx_v_info->suboffsets = __pyx_t_4;
+    __pyx_t_3 = __pyx_v_self->view.suboffsets;
+    __pyx_v_info->suboffsets = __pyx_t_3;
 
-    /* "View.MemoryView":532
+    /* "View.MemoryView":536
  *             info.strides = NULL
  * 
  *         if flags & PyBUF_INDIRECT:             # <<<<<<<<<<<<<<
@@ -7790,7 +8956,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
     goto __pyx_L8;
   }
 
-  /* "View.MemoryView":535
+  /* "View.MemoryView":539
  *             info.suboffsets = self.view.suboffsets
  *         else:
  *             info.suboffsets = NULL             # <<<<<<<<<<<<<<
@@ -7802,7 +8968,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   }
   __pyx_L8:;
 
-  /* "View.MemoryView":537
+  /* "View.MemoryView":541
  *             info.suboffsets = NULL
  * 
  *         if flags & PyBUF_FORMAT:             # <<<<<<<<<<<<<<
@@ -7812,17 +8978,17 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   __pyx_t_1 = ((__pyx_v_flags & PyBUF_FORMAT) != 0);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":538
+    /* "View.MemoryView":542
  * 
  *         if flags & PyBUF_FORMAT:
  *             info.format = self.view.format             # <<<<<<<<<<<<<<
  *         else:
  *             info.format = NULL
  */
-    __pyx_t_5 = __pyx_v_self->view.format;
-    __pyx_v_info->format = __pyx_t_5;
+    __pyx_t_4 = __pyx_v_self->view.format;
+    __pyx_v_info->format = __pyx_t_4;
 
-    /* "View.MemoryView":537
+    /* "View.MemoryView":541
  *             info.suboffsets = NULL
  * 
  *         if flags & PyBUF_FORMAT:             # <<<<<<<<<<<<<<
@@ -7832,7 +8998,7 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
     goto __pyx_L9;
   }
 
-  /* "View.MemoryView":540
+  /* "View.MemoryView":544
  *             info.format = self.view.format
  *         else:
  *             info.format = NULL             # <<<<<<<<<<<<<<
@@ -7844,47 +9010,47 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   }
   __pyx_L9:;
 
-  /* "View.MemoryView":542
+  /* "View.MemoryView":546
  *             info.format = NULL
  * 
  *         info.buf = self.view.buf             # <<<<<<<<<<<<<<
  *         info.ndim = self.view.ndim
  *         info.itemsize = self.view.itemsize
  */
-  __pyx_t_6 = __pyx_v_self->view.buf;
-  __pyx_v_info->buf = __pyx_t_6;
+  __pyx_t_5 = __pyx_v_self->view.buf;
+  __pyx_v_info->buf = __pyx_t_5;
 
-  /* "View.MemoryView":543
+  /* "View.MemoryView":547
  * 
  *         info.buf = self.view.buf
  *         info.ndim = self.view.ndim             # <<<<<<<<<<<<<<
  *         info.itemsize = self.view.itemsize
  *         info.len = self.view.len
  */
-  __pyx_t_7 = __pyx_v_self->view.ndim;
-  __pyx_v_info->ndim = __pyx_t_7;
+  __pyx_t_6 = __pyx_v_self->view.ndim;
+  __pyx_v_info->ndim = __pyx_t_6;
 
-  /* "View.MemoryView":544
+  /* "View.MemoryView":548
  *         info.buf = self.view.buf
  *         info.ndim = self.view.ndim
  *         info.itemsize = self.view.itemsize             # <<<<<<<<<<<<<<
  *         info.len = self.view.len
  *         info.readonly = self.view.readonly
  */
-  __pyx_t_8 = __pyx_v_self->view.itemsize;
-  __pyx_v_info->itemsize = __pyx_t_8;
+  __pyx_t_7 = __pyx_v_self->view.itemsize;
+  __pyx_v_info->itemsize = __pyx_t_7;
 
-  /* "View.MemoryView":545
+  /* "View.MemoryView":549
  *         info.ndim = self.view.ndim
  *         info.itemsize = self.view.itemsize
  *         info.len = self.view.len             # <<<<<<<<<<<<<<
  *         info.readonly = self.view.readonly
  *         info.obj = self
  */
-  __pyx_t_8 = __pyx_v_self->view.len;
-  __pyx_v_info->len = __pyx_t_8;
+  __pyx_t_7 = __pyx_v_self->view.len;
+  __pyx_v_info->len = __pyx_t_7;
 
-  /* "View.MemoryView":546
+  /* "View.MemoryView":550
  *         info.itemsize = self.view.itemsize
  *         info.len = self.view.len
  *         info.readonly = self.view.readonly             # <<<<<<<<<<<<<<
@@ -7894,32 +9060,31 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   __pyx_t_1 = __pyx_v_self->view.readonly;
   __pyx_v_info->readonly = __pyx_t_1;
 
-  /* "View.MemoryView":547
+  /* "View.MemoryView":551
  *         info.len = self.view.len
  *         info.readonly = self.view.readonly
  *         info.obj = self             # <<<<<<<<<<<<<<
  * 
- *     __pyx_getbuffer = capsule(<void *> &__pyx_memoryview_getbuffer, "getbuffer(obj, view, flags)")
+ * 
  */
-  __Pyx_INCREF(((PyObject *)__pyx_v_self));
-  __Pyx_GIVEREF(((PyObject *)__pyx_v_self));
+  __Pyx_INCREF((PyObject *)__pyx_v_self);
+  __Pyx_GIVEREF((PyObject *)__pyx_v_self);
   __Pyx_GOTREF(__pyx_v_info->obj);
   __Pyx_DECREF(__pyx_v_info->obj);
   __pyx_v_info->obj = ((PyObject *)__pyx_v_self);
 
-  /* "View.MemoryView":518
+  /* "View.MemoryView":521
+ *             itemp[i] = c
  * 
- *     @cname('getbuffer')
- *     def __getbuffer__(self, Py_buffer *info, int flags):             # <<<<<<<<<<<<<<
+ *     @cname('getbuffer')             # <<<<<<<<<<<<<<
+ *     def __getbuffer__(self, Py_buffer *info, int flags):
  *         if flags & PyBUF_WRITABLE and self.view.readonly:
- *             raise ValueError("Cannot create writable memory view from read-only memoryview")
  */
 
   /* function exit code */
   __pyx_r = 0;
   goto __pyx_L0;
   __pyx_L1_error:;
-  __Pyx_XDECREF(__pyx_t_3);
   __Pyx_AddTraceback("View.MemoryView.memoryview.__getbuffer__", __pyx_clineno, __pyx_lineno, __pyx_filename);
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   if (__pyx_v_info->obj != NULL) {
@@ -7937,20 +9102,22 @@ static int __pyx_memoryview___pyx_pf_15View_dot_MemoryView_10memoryview_8__getbu
   return __pyx_r;
 }
 
-/* "View.MemoryView":553
+/* "View.MemoryView":554
  * 
- *     @property
- *     def T(self):             # <<<<<<<<<<<<<<
+ * 
+ *     @property             # <<<<<<<<<<<<<<
+ *     def T(self):
  *         cdef _memoryviewslice result = memoryview_copy(self)
- *         transpose_memslice(&result.from_slice)
  */
 
 /* Python wrapper */
 static PyObject *__pyx_pw_15View_dot_MemoryView_10memoryview_1T_1__get__(PyObject *__pyx_v_self); /*proto*/
 static PyObject *__pyx_pw_15View_dot_MemoryView_10memoryview_1T_1__get__(PyObject *__pyx_v_self) {
+  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__get__ (wrapper)", 0);
+  __pyx_kwvalues = __Pyx_KwValues_VARARGS(__pyx_args, __pyx_nargs);
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   /* function exit code */
@@ -7967,31 +9134,31 @@ static PyObject *__pyx_pf_15View_dot_MemoryView_10memoryview_1T___get__(struct _
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
-  __Pyx_RefNannySetupContext("__get__", 0);
+  __Pyx_RefNannySetupContext("__get__", 1);
 
-  /* "View.MemoryView":554
+  /* "View.MemoryView":556
  *     @property
  *     def T(self):
  *         cdef _memoryviewslice result = memoryview_copy(self)             # <<<<<<<<<<<<<<
  *         transpose_memslice(&result.from_slice)
  *         return result
  */
-  __pyx_t_1 = __pyx_memoryview_copy_object(__pyx_v_self); if (unlikely(!__pyx_t_1)) __PYX_ERR(1, 554, __pyx_L1_error)
+  __pyx_t_1 = __pyx_memoryview_copy_object(__pyx_v_self); if (unlikely(!__pyx_t_1)) __PYX_ERR(1, 556, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  if (!(likely(((__pyx_t_1) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_1, __pyx_memoryviewslice_type))))) __PYX_ERR(1, 554, __pyx_L1_error)
+  if (!(likely(((__pyx_t_1) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_1, __pyx_memoryviewslice_type))))) __PYX_ERR(1, 556, __pyx_L1_error)
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   __pyx_t_1 = 0;
 
-  /* "View.MemoryView":555
+  /* "View.MemoryView":557
  *     def T(self):
  *         cdef _memoryviewslice result = memoryview_copy(self)
  *         transpose_memslice(&result.from_slice)             # <<<<<<<<<<<<<<
  *         return result
  * 
  */
-  __pyx_t_2 = __pyx_memslice_transpose((&__pyx_v_result->from_slice)); if (unlikely(__pyx_t_2 == ((int)0))) __PYX_ERR(1, 555, __pyx_L1_error)
+  __pyx_t_2 = __pyx_memslice_transpose((&__pyx_v_result->from_slice)); if (unlikely(__pyx_t_2 == ((int)-1))) __PYX_ERR(1, 557, __pyx_L1_error)
 
-  /* "View.MemoryView":556
+  /* "View.MemoryView":558
  *         cdef _memoryviewslice result = memoryview_copy(self)
  *         transpose_memslice(&result.from_slice)
  *         return result             # <<<<<<<<<<<<<<
@@ -7999,16 +9166,16 @@ static PyObject *__pyx_pf_15View_dot_MemoryView_10memoryview_1T___get__(struct _
  *     @property
  */
   __Pyx_XDECREF(__pyx_r);
-  __Pyx_INCREF(((PyObject *)__pyx_v_result));
+  __Pyx_INCREF((PyObject *)__pyx_v_result);
   __pyx_r = ((PyObject *)__pyx_v_result);
   goto __pyx_L0;
 
-  /* "View.MemoryView":553
+  /* "View.MemoryView":554
  * 
- *     @property
- *     def T(self):             # <<<<<<<<<<<<<<
+ * 
+ *     @property             # <<<<<<<<<<<<<<
+ *     def T(self):
  *         cdef _memoryviewslice result = memoryview_copy(self)
- *         transpose_memslice(&result.from_slice)
  */
 
   /* function exit code */
@@ -8023,20 +9190,22 @@ static PyObject *__pyx_pf_15View_dot_MemoryView_10memoryview_1T___get__(struct _
   return __pyx_r;
 }
 
-/* "View.MemoryView":559
- * 
- *     @property
- *     def base(self):             # <<<<<<<<<<<<<<
- *         return self.obj
+/* "View.MemoryView":560
+ *         return result
  * 
+ *     @property             # <<<<<<<<<<<<<<
+ *     def base(self):
+ *         return self._get_base()
  */
 
 /* Python wrapper */
 static PyObject *__pyx_pw_15View_dot_MemoryView_10memoryview_4base_1__get__(PyObject *__pyx_v_self); /*proto*/
 static PyObject *__pyx_pw_15View_dot_MemoryView_10memoryview_4base_1__get__(PyObject *__pyx_v_self) {
+  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__get__ (wrapper)", 0);
+  __pyx_kwvalues = __Pyx_KwValues_VARARGS(__pyx_args, __pyx_nargs);
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   /* function exit code */
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 static PyObject *__pyx_pf_15View_dot_MemoryView_10memoryview_4base___get__(struct __pyx_memoryview_obj *__pyx_v_self) {
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
-  __Pyx_RefNannySetupContext("__get__", 0);
+  PyObject *__pyx_t_1 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
+  __Pyx_RefNannySetupContext("__get__", 1);
 
-  /* "View.MemoryView":560
+  /* "View.MemoryView":562
  *     @property
  *     def base(self):
+ *         return self._get_base()             # <<<<<<<<<<<<<<
+ * 
+ *     cdef _get_base(self):
+ */
+  __Pyx_XDECREF(__pyx_r);
+  __pyx_t_1 = ((struct __pyx_vtabstruct_memoryview *)__pyx_v_self->__pyx_vtab)->_get_base(__pyx_v_self); if (unlikely(!__pyx_t_1)) __PYX_ERR(1, 562, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_r = __pyx_t_1;
+  __pyx_t_1 = 0;
+  goto __pyx_L0;
+
+  /* "View.MemoryView":560
+ *         return result
+ * 
+ *     @property             # <<<<<<<<<<<<<<
+ *     def base(self):
+ *         return self._get_base()
+ */
+
+  /* function exit code */
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_1);
+  __Pyx_AddTraceback("View.MemoryView.memoryview.base.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = NULL;
+  __pyx_L0:;
+  __Pyx_XGIVEREF(__pyx_r);
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+/* "View.MemoryView":564
+ *         return self._get_base()
+ * 
+ *     cdef _get_base(self):             # <<<<<<<<<<<<<<
+ *         return self.obj
+ * 
+ */
+
+static PyObject *__pyx_memoryview__get_base(struct __pyx_memoryview_obj *__pyx_v_self) {
+  PyObject *__pyx_r = NULL;
+  __Pyx_RefNannyDeclarations
+  __Pyx_RefNannySetupContext("_get_base", 1);
+
+  /* "View.MemoryView":565
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+ *     cdef _get_base(self):
  *         return self.obj             # <<<<<<<<<<<<<<
  * 
  *     @property
@@ -8061,10 +9280,10 @@ static PyObject *__pyx_pf_15View_dot_MemoryView_10memoryview_4base___get__(struc
   __pyx_r = __pyx_v_self->obj;
   goto __pyx_L0;
 
-  /* "View.MemoryView":559
+  /* "View.MemoryView":564
+ *         return self._get_base()
  * 
- *     @property
- *     def base(self):             # <<<<<<<<<<<<<<
+ *     cdef _get_base(self):             # <<<<<<<<<<<<<<
  *         return self.obj
  * 
  */
@@ -8076,20 +9295,22 @@ static PyObject *__pyx_pf_15View_dot_MemoryView_10memoryview_4base___get__(struc
   return __pyx_r;
 }
 
-/* "View.MemoryView":563
+/* "View.MemoryView":567
+ *         return self.obj
  * 
- *     @property
- *     def shape(self):             # <<<<<<<<<<<<<<
+ *     @property             # <<<<<<<<<<<<<<
+ *     def shape(self):
  *         return tuple([length for length in self.view.shape[:self.view.ndim]])
- * 
  */
 
 /* Python wrapper */
 static PyObject *__pyx_pw_15View_dot_MemoryView_10memoryview_5shape_1__get__(PyObject *__pyx_v_self); /*proto*/
 static PyObject *__pyx_pw_15View_dot_MemoryView_10memoryview_5shape_1__get__(PyObject *__pyx_v_self) {
+  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__get__ (wrapper)", 0);
+  __pyx_kwvalues = __Pyx_KwValues_VARARGS(__pyx_args, __pyx_nargs);
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   /* function exit code */
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 }
 
 static PyObject *__pyx_pf_15View_dot_MemoryView_10memoryview_5shape___get__(struct __pyx_memoryview_obj *__pyx_v_self) {
-  Py_ssize_t __pyx_v_length;
+  Py_ssize_t __pyx_7genexpr__pyx_v_length;
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
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   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
-  __Pyx_RefNannySetupContext("__get__", 0);
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-  /* "View.MemoryView":564
+  /* "View.MemoryView":569
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   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) __PYX_ERR(1, 564, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_1);
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 static PyObject *__pyx_pw_15View_dot_MemoryView_10memoryview_6nbytes_1__get__(PyObject *__pyx_v_self) {
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 /* Python wrapper */
 static PyObject *__pyx_memoryview___str__(PyObject *__pyx_v_self); /*proto*/
 static PyObject *__pyx_memoryview___str__(PyObject *__pyx_v_self) {
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-static PyObject *__pyx_memoryview_is_c_contig(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused) {
+static PyObject *__pyx_memoryview_is_c_contig(PyObject *__pyx_v_self, 
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+PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
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+#if CYTHON_METH_FASTCALL
+PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
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+PyObject *__pyx_args, PyObject *__pyx_kwds
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-static PyObject *__pyx_memoryview_is_f_contig(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused) {
+static PyObject *__pyx_memoryview_is_f_contig(PyObject *__pyx_v_self, 
+#if CYTHON_METH_FASTCALL
+PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
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+PyObject *__pyx_args, PyObject *__pyx_kwds
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+#if CYTHON_METH_FASTCALL
+PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
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+PyObject *__pyx_args, PyObject *__pyx_kwds
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+  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
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-static PyObject *__pyx_memoryview_copy(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused) {
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+PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
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+#if CYTHON_METH_FASTCALL
+PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
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+PyObject *__pyx_args, PyObject *__pyx_kwds
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+  __pyx_t_2 = __pyx_memoryview_copy_object_from_slice(__pyx_v_self, (&__pyx_v_mslice)); if (unlikely(!__pyx_t_2)) __PYX_ERR(1, 646, __pyx_L1_error)
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 }
 
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-static PyObject *__pyx_memoryview_copy_fortran(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused) {
+static PyObject *__pyx_memoryview_copy_fortran(PyObject *__pyx_v_self, 
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+PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
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+PyObject *__pyx_args, PyObject *__pyx_kwds
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 /* "(tree fragment)":3
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-      __PYX_ERR(1, 722, __pyx_L1_error)
+  if (unlikely(__pyx_assertions_enabled())) {
+    __pyx_t_1 = (__pyx_v_memview->view.ndim > 0);
+    if (unlikely(!__pyx_t_1)) {
+      __Pyx_Raise(__pyx_builtin_AssertionError, 0, 0, 0);
+      __PYX_ERR(1, 723, __pyx_L1_error)
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+  #else
+  if ((1)); else __PYX_ERR(1, 723, __pyx_L1_error)
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-  /* "View.MemoryView":724
+  /* "View.MemoryView":725
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  * 
  *     if isinstance(memview, _memoryviewslice):             # <<<<<<<<<<<<<<
@@ -10206,23 +11570,22 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
  *         p_src = &memviewsliceobj.from_slice
  */
   __pyx_t_1 = __Pyx_TypeCheck(((PyObject *)__pyx_v_memview), __pyx_memoryviewslice_type); 
-  __pyx_t_2 = (__pyx_t_1 != 0);
-  if (__pyx_t_2) {
+  if (__pyx_t_1) {
 
-    /* "View.MemoryView":725
+    /* "View.MemoryView":726
  * 
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  *         p_src = &memviewsliceobj.from_slice
  *     else:
  */
-    if (!(likely(((((PyObject *)__pyx_v_memview)) == Py_None) || likely(__Pyx_TypeTest(((PyObject *)__pyx_v_memview), __pyx_memoryviewslice_type))))) __PYX_ERR(1, 725, __pyx_L1_error)
-    __pyx_t_3 = ((PyObject *)__pyx_v_memview);
-    __Pyx_INCREF(__pyx_t_3);
-    __pyx_v_memviewsliceobj = ((struct __pyx_memoryviewslice_obj *)__pyx_t_3);
-    __pyx_t_3 = 0;
+    if (!(likely(((((PyObject *)__pyx_v_memview)) == Py_None) || likely(__Pyx_TypeTest(((PyObject *)__pyx_v_memview), __pyx_memoryviewslice_type))))) __PYX_ERR(1, 726, __pyx_L1_error)
+    __pyx_t_2 = ((PyObject *)__pyx_v_memview);
+    __Pyx_INCREF(__pyx_t_2);
+    __pyx_v_memviewsliceobj = ((struct __pyx_memoryviewslice_obj *)__pyx_t_2);
+    __pyx_t_2 = 0;
 
-    /* "View.MemoryView":726
+    /* "View.MemoryView":727
  *     if isinstance(memview, _memoryviewslice):
  *         memviewsliceobj = memview
  *         p_src = &memviewsliceobj.from_slice             # <<<<<<<<<<<<<<
@@ -10231,7 +11594,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
  */
     __pyx_v_p_src = (&__pyx_v_memviewsliceobj->from_slice);
 
-    /* "View.MemoryView":724
+    /* "View.MemoryView":725
  *     assert memview.view.ndim > 0
  * 
  *     if isinstance(memview, _memoryviewslice):             # <<<<<<<<<<<<<<
@@ -10241,7 +11604,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
     goto __pyx_L3;
   }
 
-  /* "View.MemoryView":728
+  /* "View.MemoryView":729
  *         p_src = &memviewsliceobj.from_slice
  *     else:
  *         slice_copy(memview, &src)             # <<<<<<<<<<<<<<
@@ -10251,7 +11614,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
   /*else*/ {
     __pyx_memoryview_slice_copy(__pyx_v_memview, (&__pyx_v_src));
 
-    /* "View.MemoryView":729
+    /* "View.MemoryView":730
  *     else:
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@@ -10262,146 +11625,159 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
   }
   __pyx_L3:;
 
-  /* "View.MemoryView":735
+  /* "View.MemoryView":736
  * 
  * 
  *     dst.memview = p_src.memview             # <<<<<<<<<<<<<<
  *     dst.data = p_src.data
  * 
  */
-  __pyx_t_4 = __pyx_v_p_src->memview;
-  __pyx_v_dst.memview = __pyx_t_4;
+  __pyx_t_3 = __pyx_v_p_src->memview;
+  __pyx_v_dst.memview = __pyx_t_3;
 
-  /* "View.MemoryView":736
+  /* "View.MemoryView":737
  * 
  *     dst.memview = p_src.memview
  *     dst.data = p_src.data             # <<<<<<<<<<<<<<
  * 
  * 
  */
-  __pyx_t_5 = __pyx_v_p_src->data;
-  __pyx_v_dst.data = __pyx_t_5;
+  __pyx_t_4 = __pyx_v_p_src->data;
+  __pyx_v_dst.data = __pyx_t_4;
 
-  /* "View.MemoryView":741
+  /* "View.MemoryView":742
  * 
  * 
  *     cdef __Pyx_memviewslice *p_dst = &dst             # <<<<<<<<<<<<<<
  *     cdef int *p_suboffset_dim = &suboffset_dim
- *     cdef Py_ssize_t start, stop, step
+ *     cdef Py_ssize_t start, stop, step, cindex
  */
   __pyx_v_p_dst = (&__pyx_v_dst);
 
-  /* "View.MemoryView":742
+  /* "View.MemoryView":743
  * 
  *     cdef __Pyx_memviewslice *p_dst = &dst
  *     cdef int *p_suboffset_dim = &suboffset_dim             # <<<<<<<<<<<<<<
- *     cdef Py_ssize_t start, stop, step
+ *     cdef Py_ssize_t start, stop, step, cindex
  *     cdef bint have_start, have_stop, have_step
  */
   __pyx_v_p_suboffset_dim = (&__pyx_v_suboffset_dim);
 
-  /* "View.MemoryView":746
+  /* "View.MemoryView":747
  *     cdef bint have_start, have_stop, have_step
  * 
  *     for dim, index in enumerate(indices):             # <<<<<<<<<<<<<<
  *         if PyIndex_Check(index):
- *             slice_memviewslice(
+ *             cindex = index
  */
-  __pyx_t_6 = 0;
+  __pyx_t_5 = 0;
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-    __pyx_t_3 = __pyx_v_indices; __Pyx_INCREF(__pyx_t_3); __pyx_t_7 = 0;
-    __pyx_t_8 = NULL;
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-    __pyx_t_8 = Py_TYPE(__pyx_t_3)->tp_iternext; if (unlikely(!__pyx_t_8)) __PYX_ERR(1, 746, __pyx_L1_error)
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-        __Pyx_GOTREF(__pyx_t_9);
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-        if (__pyx_t_7 >= PyTuple_GET_SIZE(__pyx_t_3)) break;
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-        __Pyx_GOTREF(__pyx_t_9);
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+        __Pyx_GOTREF(__pyx_t_8);
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-      if (unlikely(!__pyx_t_9)) {
+      __pyx_t_8 = __pyx_t_7(__pyx_t_2);
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-      __Pyx_GOTREF(__pyx_t_9);
+      __Pyx_GOTREF(__pyx_t_8);
     }
-    __Pyx_XDECREF_SET(__pyx_v_index, __pyx_t_9);
-    __pyx_t_9 = 0;
-    __pyx_v_dim = __pyx_t_6;
-    __pyx_t_6 = (__pyx_t_6 + 1);
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-    /* "View.MemoryView":747
+    /* "View.MemoryView":748
  * 
  *     for dim, index in enumerate(indices):
  *         if PyIndex_Check(index):             # <<<<<<<<<<<<<<
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  *             slice_memviewslice(
- *                 p_dst, p_src.shape[dim], p_src.strides[dim], p_src.suboffsets[dim],
  */
-    __pyx_t_2 = (PyIndex_Check(__pyx_v_index) != 0);
-    if (__pyx_t_2) {
+    __pyx_t_1 = (PyIndex_Check(__pyx_v_index) != 0);
+    if (__pyx_t_1) {
 
-      /* "View.MemoryView":751
+      /* "View.MemoryView":749
+ *     for dim, index in enumerate(indices):
+ *         if PyIndex_Check(index):
+ *             cindex = index             # <<<<<<<<<<<<<<
+ *             slice_memviewslice(
  *                 p_dst, p_src.shape[dim], p_src.strides[dim], p_src.suboffsets[dim],
- *                 dim, new_ndim, p_suboffset_dim,
- *                 index, 0, 0, # start, stop, step             # <<<<<<<<<<<<<<
- *                 0, 0, 0, # have_{start,stop,step}
- *                 False)
  */
-      __pyx_t_10 = __Pyx_PyIndex_AsSsize_t(__pyx_v_index); if (unlikely((__pyx_t_10 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(1, 751, __pyx_L1_error)
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+      __pyx_v_cindex = __pyx_t_9;
 
-      /* "View.MemoryView":748
- *     for dim, index in enumerate(indices):
+      /* "View.MemoryView":750
  *         if PyIndex_Check(index):
+ *             cindex = index
  *             slice_memviewslice(             # <<<<<<<<<<<<<<
  *                 p_dst, p_src.shape[dim], p_src.strides[dim], p_src.suboffsets[dim],
  *                 dim, new_ndim, p_suboffset_dim,
  */
-      __pyx_t_11 = __pyx_memoryview_slice_memviewslice(__pyx_v_p_dst, (__pyx_v_p_src->shape[__pyx_v_dim]), (__pyx_v_p_src->strides[__pyx_v_dim]), (__pyx_v_p_src->suboffsets[__pyx_v_dim]), __pyx_v_dim, __pyx_v_new_ndim, __pyx_v_p_suboffset_dim, __pyx_t_10, 0, 0, 0, 0, 0, 0); if (unlikely(__pyx_t_11 == ((int)-1))) __PYX_ERR(1, 748, __pyx_L1_error)
+      __pyx_t_10 = __pyx_memoryview_slice_memviewslice(__pyx_v_p_dst, (__pyx_v_p_src->shape[__pyx_v_dim]), (__pyx_v_p_src->strides[__pyx_v_dim]), (__pyx_v_p_src->suboffsets[__pyx_v_dim]), __pyx_v_dim, __pyx_v_new_ndim, __pyx_v_p_suboffset_dim, __pyx_v_cindex, 0, 0, 0, 0, 0, 0); if (unlikely(__pyx_t_10 == ((int)-1))) __PYX_ERR(1, 750, __pyx_L1_error)
 
-      /* "View.MemoryView":747
+      /* "View.MemoryView":748
  * 
  *     for dim, index in enumerate(indices):
  *         if PyIndex_Check(index):             # <<<<<<<<<<<<<<
+ *             cindex = index
  *             slice_memviewslice(
- *                 p_dst, p_src.shape[dim], p_src.strides[dim], p_src.suboffsets[dim],
  */
       goto __pyx_L6;
     }
 
-    /* "View.MemoryView":754
+    /* "View.MemoryView":756
  *                 0, 0, 0, # have_{start,stop,step}
  *                 False)
  *         elif index is None:             # <<<<<<<<<<<<<<
  *             p_dst.shape[new_ndim] = 1
  *             p_dst.strides[new_ndim] = 0
  */
-    __pyx_t_2 = (__pyx_v_index == Py_None);
-    __pyx_t_1 = (__pyx_t_2 != 0);
+    __pyx_t_1 = (__pyx_v_index == Py_None);
     if (__pyx_t_1) {
 
-      /* "View.MemoryView":755
+      /* "View.MemoryView":757
  *                 False)
  *         elif index is None:
  *             p_dst.shape[new_ndim] = 1             # <<<<<<<<<<<<<<
@@ -10410,7 +11786,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
  */
       (__pyx_v_p_dst->shape[__pyx_v_new_ndim]) = 1;
 
-      /* "View.MemoryView":756
+      /* "View.MemoryView":758
  *         elif index is None:
  *             p_dst.shape[new_ndim] = 1
  *             p_dst.strides[new_ndim] = 0             # <<<<<<<<<<<<<<
@@ -10419,7 +11795,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
  */
       (__pyx_v_p_dst->strides[__pyx_v_new_ndim]) = 0;
 
-      /* "View.MemoryView":757
+      /* "View.MemoryView":759
  *             p_dst.shape[new_ndim] = 1
  *             p_dst.strides[new_ndim] = 0
  *             p_dst.suboffsets[new_ndim] = -1             # <<<<<<<<<<<<<<
@@ -10428,7 +11804,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
  */
       (__pyx_v_p_dst->suboffsets[__pyx_v_new_ndim]) = -1L;
 
-      /* "View.MemoryView":758
+      /* "View.MemoryView":760
  *             p_dst.strides[new_ndim] = 0
  *             p_dst.suboffsets[new_ndim] = -1
  *             new_ndim += 1             # <<<<<<<<<<<<<<
@@ -10437,7 +11813,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
  */
       __pyx_v_new_ndim = (__pyx_v_new_ndim + 1);
 
-      /* "View.MemoryView":754
+      /* "View.MemoryView":756
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  *         elif index is None:             # <<<<<<<<<<<<<<
@@ -10447,7 +11823,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
       goto __pyx_L6;
     }
 
-    /* "View.MemoryView":760
+    /* "View.MemoryView":762
  *             new_ndim += 1
  *         else:
  *             start = index.start or 0             # <<<<<<<<<<<<<<
@@ -10455,114 +11831,114 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
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+        __pyx_t_9 = __pyx_t_11;
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-      __pyx_t_10 = 0;
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-      /* "View.MemoryView":761
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-      __pyx_t_10 = 0;
+      __pyx_t_9 = 0;
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-      __pyx_v_stop = __pyx_t_10;
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-      /* "View.MemoryView":762
+      /* "View.MemoryView":764
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-      __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_9); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(1, 762, __pyx_L1_error)
+      __pyx_t_8 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_step); if (unlikely(!__pyx_t_8)) __PYX_ERR(1, 764, __pyx_L1_error)
+      __Pyx_GOTREF(__pyx_t_8);
+      __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_8); if (unlikely((__pyx_t_1 < 0))) __PYX_ERR(1, 764, __pyx_L1_error)
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-        __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+        __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
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-        __pyx_t_12 = __Pyx_PyIndex_AsSsize_t(__pyx_t_9); if (unlikely((__pyx_t_12 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(1, 762, __pyx_L1_error)
-        __pyx_t_10 = __pyx_t_12;
-        __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+        __pyx_t_11 = __Pyx_PyIndex_AsSsize_t(__pyx_t_8); if (unlikely((__pyx_t_11 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(1, 764, __pyx_L1_error)
+        __pyx_t_9 = __pyx_t_11;
+        __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
         goto __pyx_L11_bool_binop_done;
       }
-      __pyx_t_10 = 0;
+      __pyx_t_9 = 0;
       __pyx_L11_bool_binop_done:;
-      __pyx_v_step = __pyx_t_10;
+      __pyx_v_step = __pyx_t_9;
 
-      /* "View.MemoryView":764
+      /* "View.MemoryView":766
  *             step = index.step or 0
  * 
  *             have_start = index.start is not None             # <<<<<<<<<<<<<<
  *             have_stop = index.stop is not None
  *             have_step = index.step is not None
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-      __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_start); if (unlikely(!__pyx_t_9)) __PYX_ERR(1, 764, __pyx_L1_error)
-      __Pyx_GOTREF(__pyx_t_9);
-      __pyx_t_1 = (__pyx_t_9 != Py_None);
-      __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+      __pyx_t_8 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_start); if (unlikely(!__pyx_t_8)) __PYX_ERR(1, 766, __pyx_L1_error)
+      __Pyx_GOTREF(__pyx_t_8);
+      __pyx_t_1 = (__pyx_t_8 != Py_None);
+      __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
       __pyx_v_have_start = __pyx_t_1;
 
-      /* "View.MemoryView":765
+      /* "View.MemoryView":767
  * 
  *             have_start = index.start is not None
  *             have_stop = index.stop is not None             # <<<<<<<<<<<<<<
  *             have_step = index.step is not None
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-      __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_stop); if (unlikely(!__pyx_t_9)) __PYX_ERR(1, 765, __pyx_L1_error)
-      __Pyx_GOTREF(__pyx_t_9);
-      __pyx_t_1 = (__pyx_t_9 != Py_None);
-      __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+      __pyx_t_8 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_stop); if (unlikely(!__pyx_t_8)) __PYX_ERR(1, 767, __pyx_L1_error)
+      __Pyx_GOTREF(__pyx_t_8);
+      __pyx_t_1 = (__pyx_t_8 != Py_None);
+      __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
       __pyx_v_have_stop = __pyx_t_1;
 
-      /* "View.MemoryView":766
+      /* "View.MemoryView":768
  *             have_start = index.start is not None
  *             have_stop = index.stop is not None
  *             have_step = index.step is not None             # <<<<<<<<<<<<<<
  * 
  *             slice_memviewslice(
  */
-      __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_step); if (unlikely(!__pyx_t_9)) __PYX_ERR(1, 766, __pyx_L1_error)
-      __Pyx_GOTREF(__pyx_t_9);
-      __pyx_t_1 = (__pyx_t_9 != Py_None);
-      __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+      __pyx_t_8 = __Pyx_PyObject_GetAttrStr(__pyx_v_index, __pyx_n_s_step); if (unlikely(!__pyx_t_8)) __PYX_ERR(1, 768, __pyx_L1_error)
+      __Pyx_GOTREF(__pyx_t_8);
+      __pyx_t_1 = (__pyx_t_8 != Py_None);
+      __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
       __pyx_v_have_step = __pyx_t_1;
 
-      /* "View.MemoryView":768
+      /* "View.MemoryView":770
  *             have_step = index.step is not None
  * 
  *             slice_memviewslice(             # <<<<<<<<<<<<<<
  *                 p_dst, p_src.shape[dim], p_src.strides[dim], p_src.suboffsets[dim],
  *                 dim, new_ndim, p_suboffset_dim,
  */
-      __pyx_t_11 = __pyx_memoryview_slice_memviewslice(__pyx_v_p_dst, (__pyx_v_p_src->shape[__pyx_v_dim]), (__pyx_v_p_src->strides[__pyx_v_dim]), (__pyx_v_p_src->suboffsets[__pyx_v_dim]), __pyx_v_dim, __pyx_v_new_ndim, __pyx_v_p_suboffset_dim, __pyx_v_start, __pyx_v_stop, __pyx_v_step, __pyx_v_have_start, __pyx_v_have_stop, __pyx_v_have_step, 1); if (unlikely(__pyx_t_11 == ((int)-1))) __PYX_ERR(1, 768, __pyx_L1_error)
+      __pyx_t_10 = __pyx_memoryview_slice_memviewslice(__pyx_v_p_dst, (__pyx_v_p_src->shape[__pyx_v_dim]), (__pyx_v_p_src->strides[__pyx_v_dim]), (__pyx_v_p_src->suboffsets[__pyx_v_dim]), __pyx_v_dim, __pyx_v_new_ndim, __pyx_v_p_suboffset_dim, __pyx_v_start, __pyx_v_stop, __pyx_v_step, __pyx_v_have_start, __pyx_v_have_stop, __pyx_v_have_step, 1); if (unlikely(__pyx_t_10 == ((int)-1))) __PYX_ERR(1, 770, __pyx_L1_error)
 
-      /* "View.MemoryView":774
+      /* "View.MemoryView":776
  *                 have_start, have_stop, have_step,
  *                 True)
  *             new_ndim += 1             # <<<<<<<<<<<<<<
@@ -10573,17 +11949,17 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
     }
     __pyx_L6:;
 
-    /* "View.MemoryView":746
+    /* "View.MemoryView":747
  *     cdef bint have_start, have_stop, have_step
  * 
  *     for dim, index in enumerate(indices):             # <<<<<<<<<<<<<<
  *         if PyIndex_Check(index):
- *             slice_memviewslice(
+ *             cindex = index
  */
   }
-  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "View.MemoryView":776
+  /* "View.MemoryView":778
  *             new_ndim += 1
  * 
  *     if isinstance(memview, _memoryviewslice):             # <<<<<<<<<<<<<<
@@ -10591,51 +11967,50 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
  *                                     memviewsliceobj.to_object_func,
  */
   __pyx_t_1 = __Pyx_TypeCheck(((PyObject *)__pyx_v_memview), __pyx_memoryviewslice_type); 
-  __pyx_t_2 = (__pyx_t_1 != 0);
-  if (__pyx_t_2) {
+  if (__pyx_t_1) {
 
-    /* "View.MemoryView":777
+    /* "View.MemoryView":779
  * 
  *     if isinstance(memview, _memoryviewslice):
  *         return memoryview_fromslice(dst, new_ndim,             # <<<<<<<<<<<<<<
  *                                     memviewsliceobj.to_object_func,
  *                                     memviewsliceobj.to_dtype_func,
  */
-    __Pyx_XDECREF(((PyObject *)__pyx_r));
+    __Pyx_XDECREF((PyObject *)__pyx_r);
 
-    /* "View.MemoryView":778
+    /* "View.MemoryView":780
  *     if isinstance(memview, _memoryviewslice):
  *         return memoryview_fromslice(dst, new_ndim,
  *                                     memviewsliceobj.to_object_func,             # <<<<<<<<<<<<<<
  *                                     memviewsliceobj.to_dtype_func,
  *                                     memview.dtype_is_object)
  */
-    if (unlikely(!__pyx_v_memviewsliceobj)) { __Pyx_RaiseUnboundLocalError("memviewsliceobj"); __PYX_ERR(1, 778, __pyx_L1_error) }
+    if (unlikely(!__pyx_v_memviewsliceobj)) { __Pyx_RaiseUnboundLocalError("memviewsliceobj"); __PYX_ERR(1, 780, __pyx_L1_error) }
 
-    /* "View.MemoryView":779
+    /* "View.MemoryView":781
  *         return memoryview_fromslice(dst, new_ndim,
  *                                     memviewsliceobj.to_object_func,
  *                                     memviewsliceobj.to_dtype_func,             # <<<<<<<<<<<<<<
  *                                     memview.dtype_is_object)
  *     else:
  */
-    if (unlikely(!__pyx_v_memviewsliceobj)) { __Pyx_RaiseUnboundLocalError("memviewsliceobj"); __PYX_ERR(1, 779, __pyx_L1_error) }
+    if (unlikely(!__pyx_v_memviewsliceobj)) { __Pyx_RaiseUnboundLocalError("memviewsliceobj"); __PYX_ERR(1, 781, __pyx_L1_error) }
 
-    /* "View.MemoryView":777
+    /* "View.MemoryView":779
  * 
  *     if isinstance(memview, _memoryviewslice):
  *         return memoryview_fromslice(dst, new_ndim,             # <<<<<<<<<<<<<<
  *                                     memviewsliceobj.to_object_func,
  *                                     memviewsliceobj.to_dtype_func,
  */
-    __pyx_t_3 = __pyx_memoryview_fromslice(__pyx_v_dst, __pyx_v_new_ndim, __pyx_v_memviewsliceobj->to_object_func, __pyx_v_memviewsliceobj->to_dtype_func, __pyx_v_memview->dtype_is_object); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 777, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_3);
-    if (!(likely(((__pyx_t_3) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_3, __pyx_memoryview_type))))) __PYX_ERR(1, 777, __pyx_L1_error)
-    __pyx_r = ((struct __pyx_memoryview_obj *)__pyx_t_3);
-    __pyx_t_3 = 0;
+    __pyx_t_2 = __pyx_memoryview_fromslice(__pyx_v_dst, __pyx_v_new_ndim, __pyx_v_memviewsliceobj->to_object_func, __pyx_v_memviewsliceobj->to_dtype_func, __pyx_v_memview->dtype_is_object); if (unlikely(!__pyx_t_2)) __PYX_ERR(1, 779, __pyx_L1_error)
+    __Pyx_GOTREF(__pyx_t_2);
+    if (!(likely(((__pyx_t_2) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_2, __pyx_memoryview_type))))) __PYX_ERR(1, 779, __pyx_L1_error)
+    __pyx_r = ((struct __pyx_memoryview_obj *)__pyx_t_2);
+    __pyx_t_2 = 0;
     goto __pyx_L0;
 
-    /* "View.MemoryView":776
+    /* "View.MemoryView":778
  *             new_ndim += 1
  * 
  *     if isinstance(memview, _memoryviewslice):             # <<<<<<<<<<<<<<
@@ -10644,7 +12019,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
  */
   }
 
-  /* "View.MemoryView":782
+  /* "View.MemoryView":784
  *                                     memview.dtype_is_object)
  *     else:
  *         return memoryview_fromslice(dst, new_ndim, NULL, NULL,             # <<<<<<<<<<<<<<
@@ -10652,32 +12027,32 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
  * 
  */
   /*else*/ {
-    __Pyx_XDECREF(((PyObject *)__pyx_r));
+    __Pyx_XDECREF((PyObject *)__pyx_r);
 
-    /* "View.MemoryView":783
+    /* "View.MemoryView":785
  *     else:
  *         return memoryview_fromslice(dst, new_ndim, NULL, NULL,
  *                                     memview.dtype_is_object)             # <<<<<<<<<<<<<<
  * 
  * 
  */
-    __pyx_t_3 = __pyx_memoryview_fromslice(__pyx_v_dst, __pyx_v_new_ndim, NULL, NULL, __pyx_v_memview->dtype_is_object); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 782, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_3);
+    __pyx_t_2 = __pyx_memoryview_fromslice(__pyx_v_dst, __pyx_v_new_ndim, NULL, NULL, __pyx_v_memview->dtype_is_object); if (unlikely(!__pyx_t_2)) __PYX_ERR(1, 784, __pyx_L1_error)
+    __Pyx_GOTREF(__pyx_t_2);
 
-    /* "View.MemoryView":782
+    /* "View.MemoryView":784
  *                                     memview.dtype_is_object)
  *     else:
  *         return memoryview_fromslice(dst, new_ndim, NULL, NULL,             # <<<<<<<<<<<<<<
  *                                     memview.dtype_is_object)
  * 
  */
-    if (!(likely(((__pyx_t_3) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_3, __pyx_memoryview_type))))) __PYX_ERR(1, 782, __pyx_L1_error)
-    __pyx_r = ((struct __pyx_memoryview_obj *)__pyx_t_3);
-    __pyx_t_3 = 0;
+    if (!(likely(((__pyx_t_2) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_2, __pyx_memoryview_type))))) __PYX_ERR(1, 784, __pyx_L1_error)
+    __pyx_r = ((struct __pyx_memoryview_obj *)__pyx_t_2);
+    __pyx_t_2 = 0;
     goto __pyx_L0;
   }
 
-  /* "View.MemoryView":710
+  /* "View.MemoryView":711
  * 
  * @cname('__pyx_memview_slice')
  * cdef memoryview memview_slice(memoryview memview, object indices):             # <<<<<<<<<<<<<<
@@ -10687,8 +12062,8 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
 
   /* function exit code */
   __pyx_L1_error:;
-  __Pyx_XDECREF(__pyx_t_3);
-  __Pyx_XDECREF(__pyx_t_9);
+  __Pyx_XDECREF(__pyx_t_2);
+  __Pyx_XDECREF(__pyx_t_8);
   __Pyx_AddTraceback("View.MemoryView.memview_slice", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = 0;
   __pyx_L0:;
@@ -10699,7 +12074,7 @@ static struct __pyx_memoryview_obj *__pyx_memview_slice(struct __pyx_memoryview_
   return __pyx_r;
 }
 
-/* "View.MemoryView":807
+/* "View.MemoryView":793
  * 
  * @cname('__pyx_memoryview_slice_memviewslice')
  * cdef int slice_memviewslice(             # <<<<<<<<<<<<<<
@@ -10717,37 +12092,40 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
+  #ifdef WITH_THREAD
+  PyGILState_STATE __pyx_gilstate_save;
+  #endif
 
-  /* "View.MemoryView":827
+  /* "View.MemoryView":813
  *     cdef bint negative_step
  * 
  *     if not is_slice:             # <<<<<<<<<<<<<<
  * 
  *         if start < 0:
  */
-  __pyx_t_1 = ((!(__pyx_v_is_slice != 0)) != 0);
+  __pyx_t_1 = (!__pyx_v_is_slice);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":829
+    /* "View.MemoryView":815
  *     if not is_slice:
  * 
  *         if start < 0:             # <<<<<<<<<<<<<<
  *             start += shape
  *         if not 0 <= start < shape:
  */
-    __pyx_t_1 = ((__pyx_v_start < 0) != 0);
+    __pyx_t_1 = (__pyx_v_start < 0);
     if (__pyx_t_1) {
 
-      /* "View.MemoryView":830
+      /* "View.MemoryView":816
  * 
  *         if start < 0:
  *             start += shape             # <<<<<<<<<<<<<<
  *         if not 0 <= start < shape:
- *             _err_dim(IndexError, "Index out of bounds (axis %d)", dim)
+ *             _err_dim(PyExc_IndexError, "Index out of bounds (axis %d)", dim)
  */
       __pyx_v_start = (__pyx_v_start + __pyx_v_shape);
 
-      /* "View.MemoryView":829
+      /* "View.MemoryView":815
  *     if not is_slice:
  * 
  *         if start < 0:             # <<<<<<<<<<<<<<
@@ -10756,39 +12134,39 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
     }
 
-    /* "View.MemoryView":831
+    /* "View.MemoryView":817
  *         if start < 0:
  *             start += shape
  *         if not 0 <= start < shape:             # <<<<<<<<<<<<<<
- *             _err_dim(IndexError, "Index out of bounds (axis %d)", dim)
+ *             _err_dim(PyExc_IndexError, "Index out of bounds (axis %d)", dim)
  *     else:
  */
     __pyx_t_1 = (0 <= __pyx_v_start);
     if (__pyx_t_1) {
       __pyx_t_1 = (__pyx_v_start < __pyx_v_shape);
     }
-    __pyx_t_2 = ((!(__pyx_t_1 != 0)) != 0);
+    __pyx_t_2 = (!__pyx_t_1);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":832
+      /* "View.MemoryView":818
  *             start += shape
  *         if not 0 <= start < shape:
- *             _err_dim(IndexError, "Index out of bounds (axis %d)", dim)             # <<<<<<<<<<<<<<
+ *             _err_dim(PyExc_IndexError, "Index out of bounds (axis %d)", dim)             # <<<<<<<<<<<<<<
  *     else:
  * 
  */
-      __pyx_t_3 = __pyx_memoryview_err_dim(__pyx_builtin_IndexError, ((char *)"Index out of bounds (axis %d)"), __pyx_v_dim); if (unlikely(__pyx_t_3 == ((int)-1))) __PYX_ERR(1, 832, __pyx_L1_error)
+      __pyx_t_3 = __pyx_memoryview_err_dim(PyExc_IndexError, __pyx_kp_s_Index_out_of_bounds_axis_d, __pyx_v_dim); if (unlikely(__pyx_t_3 == ((int)-1))) __PYX_ERR(1, 818, __pyx_L1_error)
 
-      /* "View.MemoryView":831
+      /* "View.MemoryView":817
  *         if start < 0:
  *             start += shape
  *         if not 0 <= start < shape:             # <<<<<<<<<<<<<<
- *             _err_dim(IndexError, "Index out of bounds (axis %d)", dim)
+ *             _err_dim(PyExc_IndexError, "Index out of bounds (axis %d)", dim)
  *     else:
  */
     }
 
-    /* "View.MemoryView":827
+    /* "View.MemoryView":813
  *     cdef bint negative_step
  * 
  *     if not is_slice:             # <<<<<<<<<<<<<<
@@ -10798,62 +12176,86 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     goto __pyx_L3;
   }
 
-  /* "View.MemoryView":835
+  /* "View.MemoryView":821
  *     else:
  * 
- *         negative_step = have_step != 0 and step < 0             # <<<<<<<<<<<<<<
- * 
- *         if have_step and step == 0:
+ *         if have_step:             # <<<<<<<<<<<<<<
+ *             negative_step = step < 0
+ *             if step == 0:
  */
   /*else*/ {
-    __pyx_t_1 = ((__pyx_v_have_step != 0) != 0);
-    if (__pyx_t_1) {
-    } else {
-      __pyx_t_2 = __pyx_t_1;
-      goto __pyx_L6_bool_binop_done;
-    }
-    __pyx_t_1 = ((__pyx_v_step < 0) != 0);
-    __pyx_t_2 = __pyx_t_1;
-    __pyx_L6_bool_binop_done:;
-    __pyx_v_negative_step = __pyx_t_2;
+    __pyx_t_2 = (__pyx_v_have_step != 0);
+    if (__pyx_t_2) {
 
-    /* "View.MemoryView":837
- *         negative_step = have_step != 0 and step < 0
+      /* "View.MemoryView":822
  * 
- *         if have_step and step == 0:             # <<<<<<<<<<<<<<
- *             _err_dim(ValueError, "Step may not be zero (axis %d)", dim)
+ *         if have_step:
+ *             negative_step = step < 0             # <<<<<<<<<<<<<<
+ *             if step == 0:
+ *                 _err_dim(PyExc_ValueError, "Step may not be zero (axis %d)", dim)
+ */
+      __pyx_v_negative_step = (__pyx_v_step < 0);
+
+      /* "View.MemoryView":823
+ *         if have_step:
+ *             negative_step = step < 0
+ *             if step == 0:             # <<<<<<<<<<<<<<
+ *                 _err_dim(PyExc_ValueError, "Step may not be zero (axis %d)", dim)
+ *         else:
+ */
+      __pyx_t_2 = (__pyx_v_step == 0);
+      if (__pyx_t_2) {
+
+        /* "View.MemoryView":824
+ *             negative_step = step < 0
+ *             if step == 0:
+ *                 _err_dim(PyExc_ValueError, "Step may not be zero (axis %d)", dim)             # <<<<<<<<<<<<<<
+ *         else:
+ *             negative_step = False
+ */
+        __pyx_t_3 = __pyx_memoryview_err_dim(PyExc_ValueError, __pyx_kp_s_Step_may_not_be_zero_axis_d, __pyx_v_dim); if (unlikely(__pyx_t_3 == ((int)-1))) __PYX_ERR(1, 824, __pyx_L1_error)
+
+        /* "View.MemoryView":823
+ *         if have_step:
+ *             negative_step = step < 0
+ *             if step == 0:             # <<<<<<<<<<<<<<
+ *                 _err_dim(PyExc_ValueError, "Step may not be zero (axis %d)", dim)
+ *         else:
+ */
+      }
+
+      /* "View.MemoryView":821
+ *     else:
  * 
+ *         if have_step:             # <<<<<<<<<<<<<<
+ *             negative_step = step < 0
+ *             if step == 0:
  */
-    __pyx_t_1 = (__pyx_v_have_step != 0);
-    if (__pyx_t_1) {
-    } else {
-      __pyx_t_2 = __pyx_t_1;
-      goto __pyx_L9_bool_binop_done;
+      goto __pyx_L6;
     }
-    __pyx_t_1 = ((__pyx_v_step == 0) != 0);
-    __pyx_t_2 = __pyx_t_1;
-    __pyx_L9_bool_binop_done:;
-    if (__pyx_t_2) {
 
-      /* "View.MemoryView":838
- * 
- *         if have_step and step == 0:
- *             _err_dim(ValueError, "Step may not be zero (axis %d)", dim)             # <<<<<<<<<<<<<<
- * 
+    /* "View.MemoryView":826
+ *                 _err_dim(PyExc_ValueError, "Step may not be zero (axis %d)", dim)
+ *         else:
+ *             negative_step = False             # <<<<<<<<<<<<<<
+ *             step = 1
  * 
  */
-      __pyx_t_3 = __pyx_memoryview_err_dim(__pyx_builtin_ValueError, ((char *)"Step may not be zero (axis %d)"), __pyx_v_dim); if (unlikely(__pyx_t_3 == ((int)-1))) __PYX_ERR(1, 838, __pyx_L1_error)
+    /*else*/ {
+      __pyx_v_negative_step = 0;
 
-      /* "View.MemoryView":837
- *         negative_step = have_step != 0 and step < 0
+      /* "View.MemoryView":827
+ *         else:
+ *             negative_step = False
+ *             step = 1             # <<<<<<<<<<<<<<
  * 
- *         if have_step and step == 0:             # <<<<<<<<<<<<<<
- *             _err_dim(ValueError, "Step may not be zero (axis %d)", dim)
  * 
  */
+      __pyx_v_step = 1;
     }
+    __pyx_L6:;
 
-    /* "View.MemoryView":841
+    /* "View.MemoryView":830
  * 
  * 
  *         if have_start:             # <<<<<<<<<<<<<<
@@ -10863,17 +12265,17 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     __pyx_t_2 = (__pyx_v_have_start != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":842
+      /* "View.MemoryView":831
  * 
  *         if have_start:
  *             if start < 0:             # <<<<<<<<<<<<<<
  *                 start += shape
  *                 if start < 0:
  */
-      __pyx_t_2 = ((__pyx_v_start < 0) != 0);
+      __pyx_t_2 = (__pyx_v_start < 0);
       if (__pyx_t_2) {
 
-        /* "View.MemoryView":843
+        /* "View.MemoryView":832
  *         if have_start:
  *             if start < 0:
  *                 start += shape             # <<<<<<<<<<<<<<
@@ -10882,17 +12284,17 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
         __pyx_v_start = (__pyx_v_start + __pyx_v_shape);
 
-        /* "View.MemoryView":844
+        /* "View.MemoryView":833
  *             if start < 0:
  *                 start += shape
  *                 if start < 0:             # <<<<<<<<<<<<<<
  *                     start = 0
  *             elif start >= shape:
  */
-        __pyx_t_2 = ((__pyx_v_start < 0) != 0);
+        __pyx_t_2 = (__pyx_v_start < 0);
         if (__pyx_t_2) {
 
-          /* "View.MemoryView":845
+          /* "View.MemoryView":834
  *                 start += shape
  *                 if start < 0:
  *                     start = 0             # <<<<<<<<<<<<<<
@@ -10901,7 +12303,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
           __pyx_v_start = 0;
 
-          /* "View.MemoryView":844
+          /* "View.MemoryView":833
  *             if start < 0:
  *                 start += shape
  *                 if start < 0:             # <<<<<<<<<<<<<<
@@ -10910,37 +12312,36 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
         }
 
-        /* "View.MemoryView":842
+        /* "View.MemoryView":831
  * 
  *         if have_start:
  *             if start < 0:             # <<<<<<<<<<<<<<
  *                 start += shape
  *                 if start < 0:
  */
-        goto __pyx_L12;
+        goto __pyx_L9;
       }
 
-      /* "View.MemoryView":846
+      /* "View.MemoryView":835
  *                 if start < 0:
  *                     start = 0
  *             elif start >= shape:             # <<<<<<<<<<<<<<
  *                 if negative_step:
  *                     start = shape - 1
  */
-      __pyx_t_2 = ((__pyx_v_start >= __pyx_v_shape) != 0);
+      __pyx_t_2 = (__pyx_v_start >= __pyx_v_shape);
       if (__pyx_t_2) {
 
-        /* "View.MemoryView":847
+        /* "View.MemoryView":836
  *                     start = 0
  *             elif start >= shape:
  *                 if negative_step:             # <<<<<<<<<<<<<<
  *                     start = shape - 1
  *                 else:
  */
-        __pyx_t_2 = (__pyx_v_negative_step != 0);
-        if (__pyx_t_2) {
+        if (__pyx_v_negative_step) {
 
-          /* "View.MemoryView":848
+          /* "View.MemoryView":837
  *             elif start >= shape:
  *                 if negative_step:
  *                     start = shape - 1             # <<<<<<<<<<<<<<
@@ -10949,17 +12350,17 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
           __pyx_v_start = (__pyx_v_shape - 1);
 
-          /* "View.MemoryView":847
+          /* "View.MemoryView":836
  *                     start = 0
  *             elif start >= shape:
  *                 if negative_step:             # <<<<<<<<<<<<<<
  *                     start = shape - 1
  *                 else:
  */
-          goto __pyx_L14;
+          goto __pyx_L11;
         }
 
-        /* "View.MemoryView":850
+        /* "View.MemoryView":839
  *                     start = shape - 1
  *                 else:
  *                     start = shape             # <<<<<<<<<<<<<<
@@ -10969,9 +12370,9 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
         /*else*/ {
           __pyx_v_start = __pyx_v_shape;
         }
-        __pyx_L14:;
+        __pyx_L11:;
 
-        /* "View.MemoryView":846
+        /* "View.MemoryView":835
  *                 if start < 0:
  *                     start = 0
  *             elif start >= shape:             # <<<<<<<<<<<<<<
@@ -10979,19 +12380,19 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  *                     start = shape - 1
  */
       }
-      __pyx_L12:;
+      __pyx_L9:;
 
-      /* "View.MemoryView":841
+      /* "View.MemoryView":830
  * 
  * 
  *         if have_start:             # <<<<<<<<<<<<<<
  *             if start < 0:
  *                 start += shape
  */
-      goto __pyx_L11;
+      goto __pyx_L8;
     }
 
-    /* "View.MemoryView":852
+    /* "View.MemoryView":841
  *                     start = shape
  *         else:
  *             if negative_step:             # <<<<<<<<<<<<<<
@@ -10999,10 +12400,9 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  *             else:
  */
     /*else*/ {
-      __pyx_t_2 = (__pyx_v_negative_step != 0);
-      if (__pyx_t_2) {
+      if (__pyx_v_negative_step) {
 
-        /* "View.MemoryView":853
+        /* "View.MemoryView":842
  *         else:
  *             if negative_step:
  *                 start = shape - 1             # <<<<<<<<<<<<<<
@@ -11011,17 +12411,17 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
         __pyx_v_start = (__pyx_v_shape - 1);
 
-        /* "View.MemoryView":852
+        /* "View.MemoryView":841
  *                     start = shape
  *         else:
  *             if negative_step:             # <<<<<<<<<<<<<<
  *                 start = shape - 1
  *             else:
  */
-        goto __pyx_L15;
+        goto __pyx_L12;
       }
 
-      /* "View.MemoryView":855
+      /* "View.MemoryView":844
  *                 start = shape - 1
  *             else:
  *                 start = 0             # <<<<<<<<<<<<<<
@@ -11031,11 +12431,11 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
       /*else*/ {
         __pyx_v_start = 0;
       }
-      __pyx_L15:;
+      __pyx_L12:;
     }
-    __pyx_L11:;
+    __pyx_L8:;
 
-    /* "View.MemoryView":857
+    /* "View.MemoryView":846
  *                 start = 0
  * 
  *         if have_stop:             # <<<<<<<<<<<<<<
@@ -11045,17 +12445,17 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     __pyx_t_2 = (__pyx_v_have_stop != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":858
+      /* "View.MemoryView":847
  * 
  *         if have_stop:
  *             if stop < 0:             # <<<<<<<<<<<<<<
  *                 stop += shape
  *                 if stop < 0:
  */
-      __pyx_t_2 = ((__pyx_v_stop < 0) != 0);
+      __pyx_t_2 = (__pyx_v_stop < 0);
       if (__pyx_t_2) {
 
-        /* "View.MemoryView":859
+        /* "View.MemoryView":848
  *         if have_stop:
  *             if stop < 0:
  *                 stop += shape             # <<<<<<<<<<<<<<
@@ -11064,17 +12464,17 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
         __pyx_v_stop = (__pyx_v_stop + __pyx_v_shape);
 
-        /* "View.MemoryView":860
+        /* "View.MemoryView":849
  *             if stop < 0:
  *                 stop += shape
  *                 if stop < 0:             # <<<<<<<<<<<<<<
  *                     stop = 0
  *             elif stop > shape:
  */
-        __pyx_t_2 = ((__pyx_v_stop < 0) != 0);
+        __pyx_t_2 = (__pyx_v_stop < 0);
         if (__pyx_t_2) {
 
-          /* "View.MemoryView":861
+          /* "View.MemoryView":850
  *                 stop += shape
  *                 if stop < 0:
  *                     stop = 0             # <<<<<<<<<<<<<<
@@ -11083,7 +12483,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
           __pyx_v_stop = 0;
 
-          /* "View.MemoryView":860
+          /* "View.MemoryView":849
  *             if stop < 0:
  *                 stop += shape
  *                 if stop < 0:             # <<<<<<<<<<<<<<
@@ -11092,27 +12492,27 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
         }
 
-        /* "View.MemoryView":858
+        /* "View.MemoryView":847
  * 
  *         if have_stop:
  *             if stop < 0:             # <<<<<<<<<<<<<<
  *                 stop += shape
  *                 if stop < 0:
  */
-        goto __pyx_L17;
+        goto __pyx_L14;
       }
 
-      /* "View.MemoryView":862
+      /* "View.MemoryView":851
  *                 if stop < 0:
  *                     stop = 0
  *             elif stop > shape:             # <<<<<<<<<<<<<<
  *                 stop = shape
  *         else:
  */
-      __pyx_t_2 = ((__pyx_v_stop > __pyx_v_shape) != 0);
+      __pyx_t_2 = (__pyx_v_stop > __pyx_v_shape);
       if (__pyx_t_2) {
 
-        /* "View.MemoryView":863
+        /* "View.MemoryView":852
  *                     stop = 0
  *             elif stop > shape:
  *                 stop = shape             # <<<<<<<<<<<<<<
@@ -11121,7 +12521,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
         __pyx_v_stop = __pyx_v_shape;
 
-        /* "View.MemoryView":862
+        /* "View.MemoryView":851
  *                 if stop < 0:
  *                     stop = 0
  *             elif stop > shape:             # <<<<<<<<<<<<<<
@@ -11129,19 +12529,19 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  *         else:
  */
       }
-      __pyx_L17:;
+      __pyx_L14:;
 
-      /* "View.MemoryView":857
+      /* "View.MemoryView":846
  *                 start = 0
  * 
  *         if have_stop:             # <<<<<<<<<<<<<<
  *             if stop < 0:
  *                 stop += shape
  */
-      goto __pyx_L16;
+      goto __pyx_L13;
     }
 
-    /* "View.MemoryView":865
+    /* "View.MemoryView":854
  *                 stop = shape
  *         else:
  *             if negative_step:             # <<<<<<<<<<<<<<
@@ -11149,10 +12549,9 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  *             else:
  */
     /*else*/ {
-      __pyx_t_2 = (__pyx_v_negative_step != 0);
-      if (__pyx_t_2) {
+      if (__pyx_v_negative_step) {
 
-        /* "View.MemoryView":866
+        /* "View.MemoryView":855
  *         else:
  *             if negative_step:
  *                 stop = -1             # <<<<<<<<<<<<<<
@@ -11161,59 +12560,31 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
         __pyx_v_stop = -1L;
 
-        /* "View.MemoryView":865
+        /* "View.MemoryView":854
  *                 stop = shape
  *         else:
  *             if negative_step:             # <<<<<<<<<<<<<<
  *                 stop = -1
  *             else:
  */
-        goto __pyx_L19;
+        goto __pyx_L16;
       }
 
-      /* "View.MemoryView":868
+      /* "View.MemoryView":857
  *                 stop = -1
  *             else:
  *                 stop = shape             # <<<<<<<<<<<<<<
  * 
- *         if not have_step:
+ * 
  */
       /*else*/ {
         __pyx_v_stop = __pyx_v_shape;
       }
-      __pyx_L19:;
-    }
-    __pyx_L16:;
-
-    /* "View.MemoryView":870
- *                 stop = shape
- * 
- *         if not have_step:             # <<<<<<<<<<<<<<
- *             step = 1
- * 
- */
-    __pyx_t_2 = ((!(__pyx_v_have_step != 0)) != 0);
-    if (__pyx_t_2) {
-
-      /* "View.MemoryView":871
- * 
- *         if not have_step:
- *             step = 1             # <<<<<<<<<<<<<<
- * 
- * 
- */
-      __pyx_v_step = 1;
-
-      /* "View.MemoryView":870
- *                 stop = shape
- * 
- *         if not have_step:             # <<<<<<<<<<<<<<
- *             step = 1
- * 
- */
+      __pyx_L16:;
     }
+    __pyx_L13:;
 
-    /* "View.MemoryView":875
+    /* "View.MemoryView":861
  * 
  *         with cython.cdivision(True):
  *             new_shape = (stop - start) // step             # <<<<<<<<<<<<<<
@@ -11222,7 +12593,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
     __pyx_v_new_shape = ((__pyx_v_stop - __pyx_v_start) / __pyx_v_step);
 
-    /* "View.MemoryView":877
+    /* "View.MemoryView":863
  *             new_shape = (stop - start) // step
  * 
  *             if (stop - start) - step * new_shape:             # <<<<<<<<<<<<<<
@@ -11232,7 +12603,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     __pyx_t_2 = (((__pyx_v_stop - __pyx_v_start) - (__pyx_v_step * __pyx_v_new_shape)) != 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":878
+      /* "View.MemoryView":864
  * 
  *             if (stop - start) - step * new_shape:
  *                 new_shape += 1             # <<<<<<<<<<<<<<
@@ -11241,7 +12612,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
       __pyx_v_new_shape = (__pyx_v_new_shape + 1);
 
-      /* "View.MemoryView":877
+      /* "View.MemoryView":863
  *             new_shape = (stop - start) // step
  * 
  *             if (stop - start) - step * new_shape:             # <<<<<<<<<<<<<<
@@ -11250,17 +12621,17 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
     }
 
-    /* "View.MemoryView":880
+    /* "View.MemoryView":866
  *                 new_shape += 1
  * 
  *         if new_shape < 0:             # <<<<<<<<<<<<<<
  *             new_shape = 0
  * 
  */
-    __pyx_t_2 = ((__pyx_v_new_shape < 0) != 0);
+    __pyx_t_2 = (__pyx_v_new_shape < 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":881
+      /* "View.MemoryView":867
  * 
  *         if new_shape < 0:
  *             new_shape = 0             # <<<<<<<<<<<<<<
@@ -11269,7 +12640,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
       __pyx_v_new_shape = 0;
 
-      /* "View.MemoryView":880
+      /* "View.MemoryView":866
  *                 new_shape += 1
  * 
  *         if new_shape < 0:             # <<<<<<<<<<<<<<
@@ -11278,7 +12649,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
     }
 
-    /* "View.MemoryView":884
+    /* "View.MemoryView":870
  * 
  * 
  *         dst.strides[new_ndim] = stride * step             # <<<<<<<<<<<<<<
@@ -11287,7 +12658,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
     (__pyx_v_dst->strides[__pyx_v_new_ndim]) = (__pyx_v_stride * __pyx_v_step);
 
-    /* "View.MemoryView":885
+    /* "View.MemoryView":871
  * 
  *         dst.strides[new_ndim] = stride * step
  *         dst.shape[new_ndim] = new_shape             # <<<<<<<<<<<<<<
@@ -11296,7 +12667,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
     (__pyx_v_dst->shape[__pyx_v_new_ndim]) = __pyx_v_new_shape;
 
-    /* "View.MemoryView":886
+    /* "View.MemoryView":872
  *         dst.strides[new_ndim] = stride * step
  *         dst.shape[new_ndim] = new_shape
  *         dst.suboffsets[new_ndim] = suboffset             # <<<<<<<<<<<<<<
@@ -11307,17 +12678,17 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
   }
   __pyx_L3:;
 
-  /* "View.MemoryView":889
+  /* "View.MemoryView":875
  * 
  * 
  *     if suboffset_dim[0] < 0:             # <<<<<<<<<<<<<<
  *         dst.data += start * stride
  *     else:
  */
-  __pyx_t_2 = (((__pyx_v_suboffset_dim[0]) < 0) != 0);
+  __pyx_t_2 = ((__pyx_v_suboffset_dim[0]) < 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":890
+    /* "View.MemoryView":876
  * 
  *     if suboffset_dim[0] < 0:
  *         dst.data += start * stride             # <<<<<<<<<<<<<<
@@ -11326,17 +12697,17 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
     __pyx_v_dst->data = (__pyx_v_dst->data + (__pyx_v_start * __pyx_v_stride));
 
-    /* "View.MemoryView":889
+    /* "View.MemoryView":875
  * 
  * 
  *     if suboffset_dim[0] < 0:             # <<<<<<<<<<<<<<
  *         dst.data += start * stride
  *     else:
  */
-    goto __pyx_L23;
+    goto __pyx_L19;
   }
 
-  /* "View.MemoryView":892
+  /* "View.MemoryView":878
  *         dst.data += start * stride
  *     else:
  *         dst.suboffsets[suboffset_dim[0]] += start * stride             # <<<<<<<<<<<<<<
@@ -11347,88 +12718,88 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     __pyx_t_3 = (__pyx_v_suboffset_dim[0]);
     (__pyx_v_dst->suboffsets[__pyx_t_3]) = ((__pyx_v_dst->suboffsets[__pyx_t_3]) + (__pyx_v_start * __pyx_v_stride));
   }
-  __pyx_L23:;
+  __pyx_L19:;
 
-  /* "View.MemoryView":894
+  /* "View.MemoryView":880
  *         dst.suboffsets[suboffset_dim[0]] += start * stride
  * 
  *     if suboffset >= 0:             # <<<<<<<<<<<<<<
  *         if not is_slice:
  *             if new_ndim == 0:
  */
-  __pyx_t_2 = ((__pyx_v_suboffset >= 0) != 0);
+  __pyx_t_2 = (__pyx_v_suboffset >= 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":895
+    /* "View.MemoryView":881
  * 
  *     if suboffset >= 0:
  *         if not is_slice:             # <<<<<<<<<<<<<<
  *             if new_ndim == 0:
  *                 dst.data = (<char **> dst.data)[0] + suboffset
  */
-    __pyx_t_2 = ((!(__pyx_v_is_slice != 0)) != 0);
+    __pyx_t_2 = (!__pyx_v_is_slice);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":896
+      /* "View.MemoryView":882
  *     if suboffset >= 0:
  *         if not is_slice:
  *             if new_ndim == 0:             # <<<<<<<<<<<<<<
  *                 dst.data = (<char **> dst.data)[0] + suboffset
  *             else:
  */
-      __pyx_t_2 = ((__pyx_v_new_ndim == 0) != 0);
+      __pyx_t_2 = (__pyx_v_new_ndim == 0);
       if (__pyx_t_2) {
 
-        /* "View.MemoryView":897
+        /* "View.MemoryView":883
  *         if not is_slice:
  *             if new_ndim == 0:
  *                 dst.data = (<char **> dst.data)[0] + suboffset             # <<<<<<<<<<<<<<
  *             else:
- *                 _err_dim(IndexError, "All dimensions preceding dimension %d "
+ *                 _err_dim(PyExc_IndexError, "All dimensions preceding dimension %d "
  */
         __pyx_v_dst->data = ((((char **)__pyx_v_dst->data)[0]) + __pyx_v_suboffset);
 
-        /* "View.MemoryView":896
+        /* "View.MemoryView":882
  *     if suboffset >= 0:
  *         if not is_slice:
  *             if new_ndim == 0:             # <<<<<<<<<<<<<<
  *                 dst.data = (<char **> dst.data)[0] + suboffset
  *             else:
  */
-        goto __pyx_L26;
+        goto __pyx_L22;
       }
 
-      /* "View.MemoryView":899
+      /* "View.MemoryView":885
  *                 dst.data = (<char **> dst.data)[0] + suboffset
  *             else:
- *                 _err_dim(IndexError, "All dimensions preceding dimension %d "             # <<<<<<<<<<<<<<
+ *                 _err_dim(PyExc_IndexError, "All dimensions preceding dimension %d "             # <<<<<<<<<<<<<<
  *                                      "must be indexed and not sliced", dim)
  *         else:
  */
       /*else*/ {
 
-        /* "View.MemoryView":900
+        /* "View.MemoryView":886
  *             else:
- *                 _err_dim(IndexError, "All dimensions preceding dimension %d "
+ *                 _err_dim(PyExc_IndexError, "All dimensions preceding dimension %d "
  *                                      "must be indexed and not sliced", dim)             # <<<<<<<<<<<<<<
  *         else:
  *             suboffset_dim[0] = new_ndim
  */
-        __pyx_t_3 = __pyx_memoryview_err_dim(__pyx_builtin_IndexError, ((char *)"All dimensions preceding dimension %d must be indexed and not sliced"), __pyx_v_dim); if (unlikely(__pyx_t_3 == ((int)-1))) __PYX_ERR(1, 899, __pyx_L1_error)
+        __pyx_t_3 = __pyx_memoryview_err_dim(PyExc_IndexError, __pyx_kp_s_All_dimensions_preceding_dimensi, __pyx_v_dim); if (unlikely(__pyx_t_3 == ((int)-1))) __PYX_ERR(1, 885, __pyx_L1_error)
       }
-      __pyx_L26:;
+      __pyx_L22:;
 
-      /* "View.MemoryView":895
+      /* "View.MemoryView":881
  * 
  *     if suboffset >= 0:
  *         if not is_slice:             # <<<<<<<<<<<<<<
  *             if new_ndim == 0:
  *                 dst.data = (<char **> dst.data)[0] + suboffset
  */
-      goto __pyx_L25;
+      goto __pyx_L21;
     }
 
-    /* "View.MemoryView":902
+    /* "View.MemoryView":888
  *                                      "must be indexed and not sliced", dim)
  *         else:
  *             suboffset_dim[0] = new_ndim             # <<<<<<<<<<<<<<
@@ -11438,9 +12809,9 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
     /*else*/ {
       (__pyx_v_suboffset_dim[0]) = __pyx_v_new_ndim;
     }
-    __pyx_L25:;
+    __pyx_L21:;
 
-    /* "View.MemoryView":894
+    /* "View.MemoryView":880
  *         dst.suboffsets[suboffset_dim[0]] += start * stride
  * 
  *     if suboffset >= 0:             # <<<<<<<<<<<<<<
@@ -11449,7 +12820,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
  */
   }
 
-  /* "View.MemoryView":904
+  /* "View.MemoryView":890
  *             suboffset_dim[0] = new_ndim
  * 
  *     return 0             # <<<<<<<<<<<<<<
@@ -11459,7 +12830,7 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
   __pyx_r = 0;
   goto __pyx_L0;
 
-  /* "View.MemoryView":807
+  /* "View.MemoryView":793
  * 
  * @cname('__pyx_memoryview_slice_memviewslice')
  * cdef int slice_memviewslice(             # <<<<<<<<<<<<<<
@@ -11469,21 +12840,19 @@ static int __pyx_memoryview_slice_memviewslice(__Pyx_memviewslice *__pyx_v_dst,
 
   /* function exit code */
   __pyx_L1_error:;
-  {
-    #ifdef WITH_THREAD
-    PyGILState_STATE __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
-    #endif
-    __Pyx_AddTraceback("View.MemoryView.slice_memviewslice", __pyx_clineno, __pyx_lineno, __pyx_filename);
-    #ifdef WITH_THREAD
-    __Pyx_PyGILState_Release(__pyx_gilstate_save);
-    #endif
-  }
+  #ifdef WITH_THREAD
+  __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
+  #endif
+  __Pyx_AddTraceback("View.MemoryView.slice_memviewslice", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = -1;
+  #ifdef WITH_THREAD
+  __Pyx_PyGILState_Release(__pyx_gilstate_save);
+  #endif
   __pyx_L0:;
   return __pyx_r;
 }
 
-/* "View.MemoryView":910
+/* "View.MemoryView":896
  * 
  * @cname('__pyx_pybuffer_index')
  * cdef char *pybuffer_index(Py_buffer *view, char *bufp, Py_ssize_t index,             # <<<<<<<<<<<<<<
@@ -11502,13 +12871,14 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
   Py_ssize_t __pyx_t_1;
   int __pyx_t_2;
   PyObject *__pyx_t_3 = NULL;
-  PyObject *__pyx_t_4 = NULL;
+  Py_UCS4 __pyx_t_4;
+  PyObject *__pyx_t_5 = NULL;
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
-  __Pyx_RefNannySetupContext("pybuffer_index", 0);
+  __Pyx_RefNannySetupContext("pybuffer_index", 1);
 
-  /* "View.MemoryView":912
+  /* "View.MemoryView":898
  * cdef char *pybuffer_index(Py_buffer *view, char *bufp, Py_ssize_t index,
  *                           Py_ssize_t dim) except NULL:
  *     cdef Py_ssize_t shape, stride, suboffset = -1             # <<<<<<<<<<<<<<
@@ -11517,7 +12887,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
   __pyx_v_suboffset = -1L;
 
-  /* "View.MemoryView":913
+  /* "View.MemoryView":899
  *                           Py_ssize_t dim) except NULL:
  *     cdef Py_ssize_t shape, stride, suboffset = -1
  *     cdef Py_ssize_t itemsize = view.itemsize             # <<<<<<<<<<<<<<
@@ -11527,53 +12897,53 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
   __pyx_t_1 = __pyx_v_view->itemsize;
   __pyx_v_itemsize = __pyx_t_1;
 
-  /* "View.MemoryView":916
+  /* "View.MemoryView":902
  *     cdef char *resultp
  * 
  *     if view.ndim == 0:             # <<<<<<<<<<<<<<
- *         shape = view.len / itemsize
+ *         shape = view.len // itemsize
  *         stride = itemsize
  */
-  __pyx_t_2 = ((__pyx_v_view->ndim == 0) != 0);
+  __pyx_t_2 = (__pyx_v_view->ndim == 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":917
+    /* "View.MemoryView":903
  * 
  *     if view.ndim == 0:
- *         shape = view.len / itemsize             # <<<<<<<<<<<<<<
+ *         shape = view.len // itemsize             # <<<<<<<<<<<<<<
  *         stride = itemsize
  *     else:
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       PyErr_SetString(PyExc_ZeroDivisionError, "integer division or modulo by zero");
-      __PYX_ERR(1, 917, __pyx_L1_error)
+      __PYX_ERR(1, 903, __pyx_L1_error)
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-    else if (sizeof(Py_ssize_t) == sizeof(long) && (!(((Py_ssize_t)-1) > 0)) && unlikely(__pyx_v_itemsize == (Py_ssize_t)-1)  && unlikely(UNARY_NEG_WOULD_OVERFLOW(__pyx_v_view->len))) {
+    else if (sizeof(Py_ssize_t) == sizeof(long) && (!(((Py_ssize_t)-1) > 0)) && unlikely(__pyx_v_itemsize == (Py_ssize_t)-1)  && unlikely(__Pyx_UNARY_NEG_WOULD_OVERFLOW(__pyx_v_view->len))) {
       PyErr_SetString(PyExc_OverflowError, "value too large to perform division");
-      __PYX_ERR(1, 917, __pyx_L1_error)
+      __PYX_ERR(1, 903, __pyx_L1_error)
     }
     __pyx_v_shape = __Pyx_div_Py_ssize_t(__pyx_v_view->len, __pyx_v_itemsize);
 
-    /* "View.MemoryView":918
+    /* "View.MemoryView":904
  *     if view.ndim == 0:
- *         shape = view.len / itemsize
+ *         shape = view.len // itemsize
  *         stride = itemsize             # <<<<<<<<<<<<<<
  *     else:
  *         shape = view.shape[dim]
  */
     __pyx_v_stride = __pyx_v_itemsize;
 
-    /* "View.MemoryView":916
+    /* "View.MemoryView":902
  *     cdef char *resultp
  * 
  *     if view.ndim == 0:             # <<<<<<<<<<<<<<
- *         shape = view.len / itemsize
+ *         shape = view.len // itemsize
  *         stride = itemsize
  */
     goto __pyx_L3;
   }
 
-  /* "View.MemoryView":920
+  /* "View.MemoryView":906
  *         stride = itemsize
  *     else:
  *         shape = view.shape[dim]             # <<<<<<<<<<<<<<
@@ -11583,7 +12953,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
   /*else*/ {
     __pyx_v_shape = (__pyx_v_view->shape[__pyx_v_dim]);
 
-    /* "View.MemoryView":921
+    /* "View.MemoryView":907
  *     else:
  *         shape = view.shape[dim]
  *         stride = view.strides[dim]             # <<<<<<<<<<<<<<
@@ -11592,17 +12962,17 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
     __pyx_v_stride = (__pyx_v_view->strides[__pyx_v_dim]);
 
-    /* "View.MemoryView":922
+    /* "View.MemoryView":908
  *         shape = view.shape[dim]
  *         stride = view.strides[dim]
  *         if view.suboffsets != NULL:             # <<<<<<<<<<<<<<
  *             suboffset = view.suboffsets[dim]
  * 
  */
-    __pyx_t_2 = ((__pyx_v_view->suboffsets != NULL) != 0);
+    __pyx_t_2 = (__pyx_v_view->suboffsets != NULL);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":923
+      /* "View.MemoryView":909
  *         stride = view.strides[dim]
  *         if view.suboffsets != NULL:
  *             suboffset = view.suboffsets[dim]             # <<<<<<<<<<<<<<
@@ -11611,7 +12981,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
       __pyx_v_suboffset = (__pyx_v_view->suboffsets[__pyx_v_dim]);
 
-      /* "View.MemoryView":922
+      /* "View.MemoryView":908
  *         shape = view.shape[dim]
  *         stride = view.strides[dim]
  *         if view.suboffsets != NULL:             # <<<<<<<<<<<<<<
@@ -11622,64 +12992,77 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
   }
   __pyx_L3:;
 
-  /* "View.MemoryView":925
+  /* "View.MemoryView":911
  *             suboffset = view.suboffsets[dim]
  * 
  *     if index < 0:             # <<<<<<<<<<<<<<
  *         index += view.shape[dim]
  *         if index < 0:
  */
-  __pyx_t_2 = ((__pyx_v_index < 0) != 0);
+  __pyx_t_2 = (__pyx_v_index < 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":926
+    /* "View.MemoryView":912
  * 
  *     if index < 0:
  *         index += view.shape[dim]             # <<<<<<<<<<<<<<
  *         if index < 0:
- *             raise IndexError("Out of bounds on buffer access (axis %d)" % dim)
+ *             raise IndexError, f"Out of bounds on buffer access (axis {dim})"
  */
     __pyx_v_index = (__pyx_v_index + (__pyx_v_view->shape[__pyx_v_dim]));
 
-    /* "View.MemoryView":927
+    /* "View.MemoryView":913
  *     if index < 0:
  *         index += view.shape[dim]
  *         if index < 0:             # <<<<<<<<<<<<<<
- *             raise IndexError("Out of bounds on buffer access (axis %d)" % dim)
+ *             raise IndexError, f"Out of bounds on buffer access (axis {dim})"
  * 
  */
-    __pyx_t_2 = ((__pyx_v_index < 0) != 0);
+    __pyx_t_2 = (__pyx_v_index < 0);
     if (unlikely(__pyx_t_2)) {
 
-      /* "View.MemoryView":928
+      /* "View.MemoryView":914
  *         index += view.shape[dim]
  *         if index < 0:
- *             raise IndexError("Out of bounds on buffer access (axis %d)" % dim)             # <<<<<<<<<<<<<<
+ *             raise IndexError, f"Out of bounds on buffer access (axis {dim})"             # <<<<<<<<<<<<<<
  * 
  *     if index >= shape:
  */
-      __pyx_t_3 = PyInt_FromSsize_t(__pyx_v_dim); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 928, __pyx_L1_error)
+      __pyx_t_3 = PyTuple_New(3); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 914, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
-      __pyx_t_4 = __Pyx_PyString_Format(__pyx_kp_s_Out_of_bounds_on_buffer_access_a, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(1, 928, __pyx_L1_error)
-      __Pyx_GOTREF(__pyx_t_4);
-      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __pyx_t_3 = __Pyx_PyObject_CallOneArg(__pyx_builtin_IndexError, __pyx_t_4); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 928, __pyx_L1_error)
-      __Pyx_GOTREF(__pyx_t_3);
-      __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-      __Pyx_Raise(__pyx_t_3, 0, 0, 0);
+      __pyx_t_1 = 0;
+      __pyx_t_4 = 127;
+      __Pyx_INCREF(__pyx_kp_u_Out_of_bounds_on_buffer_access_a);
+      __pyx_t_1 += 37;
+      __Pyx_GIVEREF(__pyx_kp_u_Out_of_bounds_on_buffer_access_a);
+      PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_kp_u_Out_of_bounds_on_buffer_access_a);
+      __pyx_t_5 = __Pyx_PyUnicode_From_Py_ssize_t(__pyx_v_dim, 0, ' ', 'd'); if (unlikely(!__pyx_t_5)) __PYX_ERR(1, 914, __pyx_L1_error)
+      __Pyx_GOTREF(__pyx_t_5);
+      __pyx_t_1 += __Pyx_PyUnicode_GET_LENGTH(__pyx_t_5);
+      __Pyx_GIVEREF(__pyx_t_5);
+      PyTuple_SET_ITEM(__pyx_t_3, 1, __pyx_t_5);
+      __pyx_t_5 = 0;
+      __Pyx_INCREF(__pyx_kp_u__7);
+      __pyx_t_1 += 1;
+      __Pyx_GIVEREF(__pyx_kp_u__7);
+      PyTuple_SET_ITEM(__pyx_t_3, 2, __pyx_kp_u__7);
+      __pyx_t_5 = __Pyx_PyUnicode_Join(__pyx_t_3, 3, __pyx_t_1, __pyx_t_4); if (unlikely(!__pyx_t_5)) __PYX_ERR(1, 914, __pyx_L1_error)
+      __Pyx_GOTREF(__pyx_t_5);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __PYX_ERR(1, 928, __pyx_L1_error)
+      __Pyx_Raise(__pyx_builtin_IndexError, __pyx_t_5, 0, 0);
+      __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
+      __PYX_ERR(1, 914, __pyx_L1_error)
 
-      /* "View.MemoryView":927
+      /* "View.MemoryView":913
  *     if index < 0:
  *         index += view.shape[dim]
  *         if index < 0:             # <<<<<<<<<<<<<<
- *             raise IndexError("Out of bounds on buffer access (axis %d)" % dim)
+ *             raise IndexError, f"Out of bounds on buffer access (axis {dim})"
  * 
  */
     }
 
-    /* "View.MemoryView":925
+    /* "View.MemoryView":911
  *             suboffset = view.suboffsets[dim]
  * 
  *     if index < 0:             # <<<<<<<<<<<<<<
@@ -11688,46 +13071,59 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
   }
 
-  /* "View.MemoryView":930
- *             raise IndexError("Out of bounds on buffer access (axis %d)" % dim)
+  /* "View.MemoryView":916
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  * 
  *     if index >= shape:             # <<<<<<<<<<<<<<
- *         raise IndexError("Out of bounds on buffer access (axis %d)" % dim)
+ *         raise IndexError, f"Out of bounds on buffer access (axis {dim})"
  * 
  */
-  __pyx_t_2 = ((__pyx_v_index >= __pyx_v_shape) != 0);
+  __pyx_t_2 = (__pyx_v_index >= __pyx_v_shape);
   if (unlikely(__pyx_t_2)) {
 
-    /* "View.MemoryView":931
+    /* "View.MemoryView":917
  * 
  *     if index >= shape:
- *         raise IndexError("Out of bounds on buffer access (axis %d)" % dim)             # <<<<<<<<<<<<<<
+ *         raise IndexError, f"Out of bounds on buffer access (axis {dim})"             # <<<<<<<<<<<<<<
  * 
  *     resultp = bufp + index * stride
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-    __pyx_t_3 = PyInt_FromSsize_t(__pyx_v_dim); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 931, __pyx_L1_error)
+    __pyx_t_5 = PyTuple_New(3); if (unlikely(!__pyx_t_5)) __PYX_ERR(1, 917, __pyx_L1_error)
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+    __pyx_t_4 = 127;
+    __Pyx_INCREF(__pyx_kp_u_Out_of_bounds_on_buffer_access_a);
+    __pyx_t_1 += 37;
+    __Pyx_GIVEREF(__pyx_kp_u_Out_of_bounds_on_buffer_access_a);
+    PyTuple_SET_ITEM(__pyx_t_5, 0, __pyx_kp_u_Out_of_bounds_on_buffer_access_a);
+    __pyx_t_3 = __Pyx_PyUnicode_From_Py_ssize_t(__pyx_v_dim, 0, ' ', 'd'); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 917, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_4 = __Pyx_PyString_Format(__pyx_kp_s_Out_of_bounds_on_buffer_access_a, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(1, 931, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_4);
-    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
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+    __pyx_t_1 += __Pyx_PyUnicode_GET_LENGTH(__pyx_t_3);
+    __Pyx_GIVEREF(__pyx_t_3);
+    PyTuple_SET_ITEM(__pyx_t_5, 1, __pyx_t_3);
+    __pyx_t_3 = 0;
+    __Pyx_INCREF(__pyx_kp_u__7);
+    __pyx_t_1 += 1;
+    __Pyx_GIVEREF(__pyx_kp_u__7);
+    PyTuple_SET_ITEM(__pyx_t_5, 2, __pyx_kp_u__7);
+    __pyx_t_3 = __Pyx_PyUnicode_Join(__pyx_t_5, 3, __pyx_t_1, __pyx_t_4); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 917, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __Pyx_Raise(__pyx_t_3, 0, 0, 0);
+    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
+    __Pyx_Raise(__pyx_builtin_IndexError, __pyx_t_3, 0, 0);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __PYX_ERR(1, 931, __pyx_L1_error)
+    __PYX_ERR(1, 917, __pyx_L1_error)
 
-    /* "View.MemoryView":930
- *             raise IndexError("Out of bounds on buffer access (axis %d)" % dim)
+    /* "View.MemoryView":916
+ *             raise IndexError, f"Out of bounds on buffer access (axis {dim})"
  * 
  *     if index >= shape:             # <<<<<<<<<<<<<<
- *         raise IndexError("Out of bounds on buffer access (axis %d)" % dim)
+ *         raise IndexError, f"Out of bounds on buffer access (axis {dim})"
  * 
  */
   }
 
-  /* "View.MemoryView":933
- *         raise IndexError("Out of bounds on buffer access (axis %d)" % dim)
+  /* "View.MemoryView":919
+ *         raise IndexError, f"Out of bounds on buffer access (axis {dim})"
  * 
  *     resultp = bufp + index * stride             # <<<<<<<<<<<<<<
  *     if suboffset >= 0:
@@ -11735,17 +13131,17 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
   __pyx_v_resultp = (__pyx_v_bufp + (__pyx_v_index * __pyx_v_stride));
 
-  /* "View.MemoryView":934
+  /* "View.MemoryView":920
  * 
  *     resultp = bufp + index * stride
  *     if suboffset >= 0:             # <<<<<<<<<<<<<<
  *         resultp = (<char **> resultp)[0] + suboffset
  * 
  */
-  __pyx_t_2 = ((__pyx_v_suboffset >= 0) != 0);
+  __pyx_t_2 = (__pyx_v_suboffset >= 0);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":935
+    /* "View.MemoryView":921
  *     resultp = bufp + index * stride
  *     if suboffset >= 0:
  *         resultp = (<char **> resultp)[0] + suboffset             # <<<<<<<<<<<<<<
@@ -11754,7 +13150,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
     __pyx_v_resultp = ((((char **)__pyx_v_resultp)[0]) + __pyx_v_suboffset);
 
-    /* "View.MemoryView":934
+    /* "View.MemoryView":920
  * 
  *     resultp = bufp + index * stride
  *     if suboffset >= 0:             # <<<<<<<<<<<<<<
@@ -11763,7 +13159,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
  */
   }
 
-  /* "View.MemoryView":937
+  /* "View.MemoryView":923
  *         resultp = (<char **> resultp)[0] + suboffset
  * 
  *     return resultp             # <<<<<<<<<<<<<<
@@ -11773,7 +13169,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
   __pyx_r = __pyx_v_resultp;
   goto __pyx_L0;
 
-  /* "View.MemoryView":910
+  /* "View.MemoryView":896
  * 
  * @cname('__pyx_pybuffer_index')
  * cdef char *pybuffer_index(Py_buffer *view, char *bufp, Py_ssize_t index,             # <<<<<<<<<<<<<<
@@ -11784,7 +13180,7 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
   /* function exit code */
   __pyx_L1_error:;
   __Pyx_XDECREF(__pyx_t_3);
-  __Pyx_XDECREF(__pyx_t_4);
+  __Pyx_XDECREF(__pyx_t_5);
   __Pyx_AddTraceback("View.MemoryView.pybuffer_index", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = NULL;
   __pyx_L0:;
@@ -11792,10 +13188,10 @@ static char *__pyx_pybuffer_index(Py_buffer *__pyx_v_view, char *__pyx_v_bufp, P
   return __pyx_r;
 }
 
-/* "View.MemoryView":943
+/* "View.MemoryView":929
  * 
  * @cname('__pyx_memslice_transpose')
- * cdef int transpose_memslice(__Pyx_memviewslice *memslice) nogil except 0:             # <<<<<<<<<<<<<<
+ * cdef int transpose_memslice(__Pyx_memviewslice *memslice) except -1 nogil:             # <<<<<<<<<<<<<<
  *     cdef int ndim = memslice.memview.view.ndim
  * 
  */
@@ -11819,10 +13215,13 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
+  #ifdef WITH_THREAD
+  PyGILState_STATE __pyx_gilstate_save;
+  #endif
 
-  /* "View.MemoryView":944
+  /* "View.MemoryView":930
  * @cname('__pyx_memslice_transpose')
- * cdef int transpose_memslice(__Pyx_memviewslice *memslice) nogil except 0:
+ * cdef int transpose_memslice(__Pyx_memviewslice *memslice) except -1 nogil:
  *     cdef int ndim = memslice.memview.view.ndim             # <<<<<<<<<<<<<<
  * 
  *     cdef Py_ssize_t *shape = memslice.shape
@@ -11830,7 +13229,7 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
   __pyx_t_1 = __pyx_v_memslice->memview->view.ndim;
   __pyx_v_ndim = __pyx_t_1;
 
-  /* "View.MemoryView":946
+  /* "View.MemoryView":932
  *     cdef int ndim = memslice.memview.view.ndim
  * 
  *     cdef Py_ssize_t *shape = memslice.shape             # <<<<<<<<<<<<<<
@@ -11840,7 +13239,7 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
   __pyx_t_2 = __pyx_v_memslice->shape;
   __pyx_v_shape = __pyx_t_2;
 
-  /* "View.MemoryView":947
+  /* "View.MemoryView":933
  * 
  *     cdef Py_ssize_t *shape = memslice.shape
  *     cdef Py_ssize_t *strides = memslice.strides             # <<<<<<<<<<<<<<
@@ -11850,10 +13249,10 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
   __pyx_t_2 = __pyx_v_memslice->strides;
   __pyx_v_strides = __pyx_t_2;
 
-  /* "View.MemoryView":951
+  /* "View.MemoryView":937
  * 
  *     cdef int i, j
- *     for i in range(ndim / 2):             # <<<<<<<<<<<<<<
+ *     for i in range(ndim // 2):             # <<<<<<<<<<<<<<
  *         j = ndim - 1 - i
  *         strides[i], strides[j] = strides[j], strides[i]
  */
@@ -11862,17 +13261,17 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
   for (__pyx_t_1 = 0; __pyx_t_1 < __pyx_t_4; __pyx_t_1+=1) {
     __pyx_v_i = __pyx_t_1;
 
-    /* "View.MemoryView":952
+    /* "View.MemoryView":938
  *     cdef int i, j
- *     for i in range(ndim / 2):
+ *     for i in range(ndim // 2):
  *         j = ndim - 1 - i             # <<<<<<<<<<<<<<
  *         strides[i], strides[j] = strides[j], strides[i]
  *         shape[i], shape[j] = shape[j], shape[i]
  */
     __pyx_v_j = ((__pyx_v_ndim - 1) - __pyx_v_i);
 
-    /* "View.MemoryView":953
- *     for i in range(ndim / 2):
+    /* "View.MemoryView":939
+ *     for i in range(ndim // 2):
  *         j = ndim - 1 - i
  *         strides[i], strides[j] = strides[j], strides[i]             # <<<<<<<<<<<<<<
  *         shape[i], shape[j] = shape[j], shape[i]
@@ -11883,7 +13282,7 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
     (__pyx_v_strides[__pyx_v_i]) = __pyx_t_5;
     (__pyx_v_strides[__pyx_v_j]) = __pyx_t_6;
 
-    /* "View.MemoryView":954
+    /* "View.MemoryView":940
  *         j = ndim - 1 - i
  *         strides[i], strides[j] = strides[j], strides[i]
  *         shape[i], shape[j] = shape[j], shape[i]             # <<<<<<<<<<<<<<
@@ -11895,90 +13294,90 @@ static int __pyx_memslice_transpose(__Pyx_memviewslice *__pyx_v_memslice) {
     (__pyx_v_shape[__pyx_v_i]) = __pyx_t_6;
     (__pyx_v_shape[__pyx_v_j]) = __pyx_t_5;
 
-    /* "View.MemoryView":956
+    /* "View.MemoryView":942
  *         shape[i], shape[j] = shape[j], shape[i]
  * 
  *         if memslice.suboffsets[i] >= 0 or memslice.suboffsets[j] >= 0:             # <<<<<<<<<<<<<<
- *             _err(ValueError, "Cannot transpose memoryview with indirect dimensions")
+ *             _err(PyExc_ValueError, "Cannot transpose memoryview with indirect dimensions")
  * 
  */
-    __pyx_t_8 = (((__pyx_v_memslice->suboffsets[__pyx_v_i]) >= 0) != 0);
+    __pyx_t_8 = ((__pyx_v_memslice->suboffsets[__pyx_v_i]) >= 0);
     if (!__pyx_t_8) {
     } else {
       __pyx_t_7 = __pyx_t_8;
       goto __pyx_L6_bool_binop_done;
     }
-    __pyx_t_8 = (((__pyx_v_memslice->suboffsets[__pyx_v_j]) >= 0) != 0);
+    __pyx_t_8 = ((__pyx_v_memslice->suboffsets[__pyx_v_j]) >= 0);
     __pyx_t_7 = __pyx_t_8;
     __pyx_L6_bool_binop_done:;
     if (__pyx_t_7) {
 
-      /* "View.MemoryView":957
+      /* "View.MemoryView":943
  * 
  *         if memslice.suboffsets[i] >= 0 or memslice.suboffsets[j] >= 0:
- *             _err(ValueError, "Cannot transpose memoryview with indirect dimensions")             # <<<<<<<<<<<<<<
+ *             _err(PyExc_ValueError, "Cannot transpose memoryview with indirect dimensions")             # <<<<<<<<<<<<<<
  * 
- *     return 1
+ *     return 0
  */
-      __pyx_t_9 = __pyx_memoryview_err(__pyx_builtin_ValueError, ((char *)"Cannot transpose memoryview with indirect dimensions")); if (unlikely(__pyx_t_9 == ((int)-1))) __PYX_ERR(1, 957, __pyx_L1_error)
+      __pyx_t_9 = __pyx_memoryview_err(PyExc_ValueError, __pyx_kp_s_Cannot_transpose_memoryview_with); if (unlikely(__pyx_t_9 == ((int)-1))) __PYX_ERR(1, 943, __pyx_L1_error)
 
-      /* "View.MemoryView":956
+      /* "View.MemoryView":942
  *         shape[i], shape[j] = shape[j], shape[i]
  * 
  *         if memslice.suboffsets[i] >= 0 or memslice.suboffsets[j] >= 0:             # <<<<<<<<<<<<<<
- *             _err(ValueError, "Cannot transpose memoryview with indirect dimensions")
+ *             _err(PyExc_ValueError, "Cannot transpose memoryview with indirect dimensions")
  * 
  */
     }
   }
 
-  /* "View.MemoryView":959
- *             _err(ValueError, "Cannot transpose memoryview with indirect dimensions")
+  /* "View.MemoryView":945
+ *             _err(PyExc_ValueError, "Cannot transpose memoryview with indirect dimensions")
  * 
- *     return 1             # <<<<<<<<<<<<<<
+ *     return 0             # <<<<<<<<<<<<<<
  * 
  * 
  */
-  __pyx_r = 1;
+  __pyx_r = 0;
   goto __pyx_L0;
 
-  /* "View.MemoryView":943
+  /* "View.MemoryView":929
  * 
  * @cname('__pyx_memslice_transpose')
- * cdef int transpose_memslice(__Pyx_memviewslice *memslice) nogil except 0:             # <<<<<<<<<<<<<<
+ * cdef int transpose_memslice(__Pyx_memviewslice *memslice) except -1 nogil:             # <<<<<<<<<<<<<<
  *     cdef int ndim = memslice.memview.view.ndim
  * 
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   /* function exit code */
   __pyx_L1_error:;
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-    #ifdef WITH_THREAD
-    PyGILState_STATE __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
-    #endif
-    __Pyx_AddTraceback("View.MemoryView.transpose_memslice", __pyx_clineno, __pyx_lineno, __pyx_filename);
-    #ifdef WITH_THREAD
-    __Pyx_PyGILState_Release(__pyx_gilstate_save);
-    #endif
-  }
-  __pyx_r = 0;
+  #ifdef WITH_THREAD
+  __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
+  #endif
+  __Pyx_AddTraceback("View.MemoryView.transpose_memslice", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = -1;
+  #ifdef WITH_THREAD
+  __Pyx_PyGILState_Release(__pyx_gilstate_save);
+  #endif
   __pyx_L0:;
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 }
 
-/* "View.MemoryView":976
+/* "View.MemoryView":963
  *     cdef int (*to_dtype_func)(char *, object) except 0
  * 
  *     def __dealloc__(self):             # <<<<<<<<<<<<<<
- *         __PYX_XDEC_MEMVIEW(&self.from_slice, 1)
+ *         __PYX_XCLEAR_MEMVIEW(&self.from_slice, 1)
  * 
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 /* Python wrapper */
 static void __pyx_memoryviewslice___dealloc__(PyObject *__pyx_v_self); /*proto*/
 static void __pyx_memoryviewslice___dealloc__(PyObject *__pyx_v_self) {
+  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__dealloc__ (wrapper)", 0);
+  __pyx_kwvalues = __Pyx_KwValues_VARARGS(__pyx_args, __pyx_nargs);
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   /* function exit code */
@@ -11986,32 +13385,29 @@ static void __pyx_memoryviewslice___dealloc__(PyObject *__pyx_v_self) {
 }
 
 static void __pyx_memoryviewslice___pyx_pf_15View_dot_MemoryView_16_memoryviewslice___dealloc__(struct __pyx_memoryviewslice_obj *__pyx_v_self) {
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-  __Pyx_RefNannySetupContext("__dealloc__", 0);
 
-  /* "View.MemoryView":977
+  /* "View.MemoryView":964
  * 
  *     def __dealloc__(self):
- *         __PYX_XDEC_MEMVIEW(&self.from_slice, 1)             # <<<<<<<<<<<<<<
+ *         __PYX_XCLEAR_MEMVIEW(&self.from_slice, 1)             # <<<<<<<<<<<<<<
  * 
  *     cdef convert_item_to_object(self, char *itemp):
  */
-  __PYX_XDEC_MEMVIEW((&__pyx_v_self->from_slice), 1);
+  __PYX_XCLEAR_MEMVIEW((&__pyx_v_self->from_slice), 1);
 
-  /* "View.MemoryView":976
+  /* "View.MemoryView":963
  *     cdef int (*to_dtype_func)(char *, object) except 0
  * 
  *     def __dealloc__(self):             # <<<<<<<<<<<<<<
- *         __PYX_XDEC_MEMVIEW(&self.from_slice, 1)
+ *         __PYX_XCLEAR_MEMVIEW(&self.from_slice, 1)
  * 
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   /* function exit code */
-  __Pyx_RefNannyFinishContext();
 }
 
-/* "View.MemoryView":979
- *         __PYX_XDEC_MEMVIEW(&self.from_slice, 1)
+/* "View.MemoryView":966
+ *         __PYX_XCLEAR_MEMVIEW(&self.from_slice, 1)
  * 
  *     cdef convert_item_to_object(self, char *itemp):             # <<<<<<<<<<<<<<
  *         if self.to_object_func != NULL:
@@ -12026,19 +13422,19 @@ static PyObject *__pyx_memoryviewslice_convert_item_to_object(struct __pyx_memor
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
-  __Pyx_RefNannySetupContext("convert_item_to_object", 0);
+  __Pyx_RefNannySetupContext("convert_item_to_object", 1);
 
-  /* "View.MemoryView":980
+  /* "View.MemoryView":967
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  *     cdef convert_item_to_object(self, char *itemp):
  *         if self.to_object_func != NULL:             # <<<<<<<<<<<<<<
  *             return self.to_object_func(itemp)
  *         else:
  */
-  __pyx_t_1 = ((__pyx_v_self->to_object_func != NULL) != 0);
+  __pyx_t_1 = (__pyx_v_self->to_object_func != NULL);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":981
+    /* "View.MemoryView":968
  *     cdef convert_item_to_object(self, char *itemp):
  *         if self.to_object_func != NULL:
  *             return self.to_object_func(itemp)             # <<<<<<<<<<<<<<
@@ -12046,13 +13442,13 @@ static PyObject *__pyx_memoryviewslice_convert_item_to_object(struct __pyx_memor
  *             return memoryview.convert_item_to_object(self, itemp)
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     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_2 = __pyx_v_self->to_object_func(__pyx_v_itemp); if (unlikely(!__pyx_t_2)) __PYX_ERR(1, 981, __pyx_L1_error)
+    __pyx_t_2 = __pyx_v_self->to_object_func(__pyx_v_itemp); if (unlikely(!__pyx_t_2)) __PYX_ERR(1, 968, __pyx_L1_error)
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     __pyx_r = __pyx_t_2;
     __pyx_t_2 = 0;
     goto __pyx_L0;
 
-    /* "View.MemoryView":980
+    /* "View.MemoryView":967
  * 
  *     cdef convert_item_to_object(self, char *itemp):
  *         if self.to_object_func != NULL:             # <<<<<<<<<<<<<<
@@ -12061,7 +13457,7 @@ static PyObject *__pyx_memoryviewslice_convert_item_to_object(struct __pyx_memor
  */
   }
 
-  /* "View.MemoryView":983
+  /* "View.MemoryView":970
  *             return self.to_object_func(itemp)
  *         else:
  *             return memoryview.convert_item_to_object(self, itemp)             # <<<<<<<<<<<<<<
@@ -12070,15 +13466,15 @@ static PyObject *__pyx_memoryviewslice_convert_item_to_object(struct __pyx_memor
  */
   /*else*/ {
     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_2 = __pyx_memoryview_convert_item_to_object(((struct __pyx_memoryview_obj *)__pyx_v_self), __pyx_v_itemp); if (unlikely(!__pyx_t_2)) __PYX_ERR(1, 983, __pyx_L1_error)
+    __pyx_t_2 = __pyx_memoryview_convert_item_to_object(((struct __pyx_memoryview_obj *)__pyx_v_self), __pyx_v_itemp); if (unlikely(!__pyx_t_2)) __PYX_ERR(1, 970, __pyx_L1_error)
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     goto __pyx_L0;
   }
 
-  /* "View.MemoryView":979
- *         __PYX_XDEC_MEMVIEW(&self.from_slice, 1)
+  /* "View.MemoryView":966
+ *         __PYX_XCLEAR_MEMVIEW(&self.from_slice, 1)
  * 
  *     cdef convert_item_to_object(self, char *itemp):             # <<<<<<<<<<<<<<
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@@ -12096,7 +13492,7 @@ static PyObject *__pyx_memoryviewslice_convert_item_to_object(struct __pyx_memor
   return __pyx_r;
 }
 
-/* "View.MemoryView":985
+/* "View.MemoryView":972
  *             return memoryview.convert_item_to_object(self, itemp)
  * 
  *     cdef assign_item_from_object(self, char *itemp, object value):             # <<<<<<<<<<<<<<
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   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
-  __Pyx_RefNannySetupContext("assign_item_from_object", 0);
+  __Pyx_RefNannySetupContext("assign_item_from_object", 1);
 
-  /* "View.MemoryView":986
+  /* "View.MemoryView":973
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  *     cdef assign_item_from_object(self, char *itemp, object value):
  *         if self.to_dtype_func != NULL:             # <<<<<<<<<<<<<<
  *             self.to_dtype_func(itemp, value)
  *         else:
  */
-  __pyx_t_1 = ((__pyx_v_self->to_dtype_func != NULL) != 0);
+  __pyx_t_1 = (__pyx_v_self->to_dtype_func != NULL);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":987
+    /* "View.MemoryView":974
  *     cdef assign_item_from_object(self, char *itemp, object value):
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  *             self.to_dtype_func(itemp, value)             # <<<<<<<<<<<<<<
  *         else:
  *             memoryview.assign_item_from_object(self, itemp, value)
  */
-    __pyx_t_2 = __pyx_v_self->to_dtype_func(__pyx_v_itemp, __pyx_v_value); if (unlikely(__pyx_t_2 == ((int)0))) __PYX_ERR(1, 987, __pyx_L1_error)
+    __pyx_t_2 = __pyx_v_self->to_dtype_func(__pyx_v_itemp, __pyx_v_value); if (unlikely(__pyx_t_2 == ((int)0))) __PYX_ERR(1, 974, __pyx_L1_error)
 
-    /* "View.MemoryView":986
+    /* "View.MemoryView":973
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  *     cdef assign_item_from_object(self, char *itemp, object value):
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     goto __pyx_L3;
   }
 
-  /* "View.MemoryView":989
+  /* "View.MemoryView":976
  *             self.to_dtype_func(itemp, value)
  *         else:
  *             memoryview.assign_item_from_object(self, itemp, value)             # <<<<<<<<<<<<<<
  * 
- *     @property
+ *     cdef _get_base(self):
  */
   /*else*/ {
-    __pyx_t_3 = __pyx_memoryview_assign_item_from_object(((struct __pyx_memoryview_obj *)__pyx_v_self), __pyx_v_itemp, __pyx_v_value); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 989, __pyx_L1_error)
+    __pyx_t_3 = __pyx_memoryview_assign_item_from_object(((struct __pyx_memoryview_obj *)__pyx_v_self), __pyx_v_itemp, __pyx_v_value); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 976, __pyx_L1_error)
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   __pyx_L3:;
 
-  /* "View.MemoryView":985
+  /* "View.MemoryView":972
  *             return memoryview.convert_item_to_object(self, itemp)
  * 
  *     cdef assign_item_from_object(self, char *itemp, object value):             # <<<<<<<<<<<<<<
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   return __pyx_r;
 }
 
-/* "View.MemoryView":992
+/* "View.MemoryView":978
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  * 
- *     @property
- *     def base(self):             # <<<<<<<<<<<<<<
+ *     cdef _get_base(self):             # <<<<<<<<<<<<<<
  *         return self.from_object
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-/* Python wrapper */
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-  /* function exit code */
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-static PyObject *__pyx_pf_15View_dot_MemoryView_16_memoryviewslice_4base___get__(struct __pyx_memoryviewslice_obj *__pyx_v_self) {
+static PyObject *__pyx_memoryviewslice__get_base(struct __pyx_memoryviewslice_obj *__pyx_v_self) {
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   __Pyx_RefNannyDeclarations
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-  /* "View.MemoryView":993
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- *     def base(self):
+  /* "View.MemoryView":979
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- *     __pyx_getbuffer = capsule(<void *> &__pyx_memoryview_getbuffer, "getbuffer(obj, view, flags)")
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-  /* "View.MemoryView":992
+  /* "View.MemoryView":978
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+ *     cdef _get_base(self):             # <<<<<<<<<<<<<<
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 /* "(tree fragment)":1
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- *     raise TypeError("no default __reduce__ due to non-trivial __cinit__")
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 /* Python wrapper */
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-static PyObject *__pyx_pw___pyx_memoryviewslice_1__reduce_cython__(PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *unused) {
+static PyObject *__pyx_pw___pyx_memoryviewslice_1__reduce_cython__(PyObject *__pyx_v_self, 
+#if CYTHON_METH_FASTCALL
+PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
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+PyObject *__pyx_args, PyObject *__pyx_kwds
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+static PyObject *__pyx_pw___pyx_memoryviewslice_1__reduce_cython__(PyObject *__pyx_v_self, 
+#if CYTHON_METH_FASTCALL
+PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
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+PyObject *__pyx_args, PyObject *__pyx_kwds
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+  #if CYTHON_ASSUME_SAFE_MACROS
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+  #else
+  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return NULL;
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-  __Pyx_Raise(__pyx_t_1, 0, 0, 0);
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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   /* "(tree fragment)":1
  * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
- *     raise TypeError("no default __reduce__ due to non-trivial __cinit__")
+ *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
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 /* "(tree fragment)":3
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- *     raise TypeError("no default __reduce__ due to non-trivial __cinit__")
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 /* Python wrapper */
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+static PyObject *__pyx_pw___pyx_memoryviewslice_3__setstate_cython__(PyObject *__pyx_v_self, 
+#if CYTHON_METH_FASTCALL
+PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
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+PyObject *__pyx_args, PyObject *__pyx_kwds
+#endif
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+static PyObject *__pyx_pw___pyx_memoryviewslice_3__setstate_cython__(PyObject *__pyx_v_self, 
+#if CYTHON_METH_FASTCALL
+PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
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+PyObject *__pyx_args, PyObject *__pyx_kwds
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+  PyObject* values[1] = {0};
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+  const char *__pyx_filename = NULL;
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   /* function exit code */
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-  __Pyx_XDECREF(__pyx_t_3);
+  __Pyx_XDECREF(__pyx_t_2);
   __Pyx_AddTraceback("View.MemoryView.get_slice_from_memview", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = NULL;
   __pyx_L0:;
@@ -12837,7 +14317,7 @@ static __Pyx_memviewslice *__pyx_memoryview_get_slice_from_memoryview(struct __p
 /* "View.MemoryView":1063
  * 
  * @cname('__pyx_memoryview_slice_copy')
- * cdef void slice_copy(memoryview memview, __Pyx_memviewslice *dst):             # <<<<<<<<<<<<<<
+ * cdef void slice_copy(memoryview memview, __Pyx_memviewslice *dst) noexcept:             # <<<<<<<<<<<<<<
  *     cdef int dim
  *     cdef (Py_ssize_t*) shape, strides, suboffsets
  */
@@ -12847,13 +14327,12 @@ static void __pyx_memoryview_slice_copy(struct __pyx_memoryview_obj *__pyx_v_mem
   Py_ssize_t *__pyx_v_shape;
   Py_ssize_t *__pyx_v_strides;
   Py_ssize_t *__pyx_v_suboffsets;
-  __Pyx_RefNannyDeclarations
   Py_ssize_t *__pyx_t_1;
   int __pyx_t_2;
   int __pyx_t_3;
   int __pyx_t_4;
   Py_ssize_t __pyx_t_5;
-  __Pyx_RefNannySetupContext("slice_copy", 0);
+  int __pyx_t_6;
 
   /* "View.MemoryView":1067
  *     cdef (Py_ssize_t*) shape, strides, suboffsets
@@ -12940,7 +14419,8 @@ static void __pyx_memoryview_slice_copy(struct __pyx_memoryview_obj *__pyx_v_mem
  * 
  * @cname('__pyx_memoryview_copy_object')
  */
-    if ((__pyx_v_suboffsets != 0)) {
+    __pyx_t_6 = (__pyx_v_suboffsets != 0);
+    if (__pyx_t_6) {
       __pyx_t_5 = (__pyx_v_suboffsets[__pyx_v_dim]);
     } else {
       __pyx_t_5 = -1L;
@@ -12951,13 +14431,12 @@ static void __pyx_memoryview_slice_copy(struct __pyx_memoryview_obj *__pyx_v_mem
   /* "View.MemoryView":1063
  * 
  * @cname('__pyx_memoryview_slice_copy')
- * cdef void slice_copy(memoryview memview, __Pyx_memviewslice *dst):             # <<<<<<<<<<<<<<
+ * cdef void slice_copy(memoryview memview, __Pyx_memviewslice *dst) noexcept:             # <<<<<<<<<<<<<<
  *     cdef int dim
  *     cdef (Py_ssize_t*) shape, strides, suboffsets
  */
 
   /* function exit code */
-  __Pyx_RefNannyFinishContext();
 }
 
 /* "View.MemoryView":1080
@@ -12976,7 +14455,7 @@ static PyObject *__pyx_memoryview_copy_object(struct __pyx_memoryview_obj *__pyx
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
-  __Pyx_RefNannySetupContext("memoryview_copy", 0);
+  __Pyx_RefNannySetupContext("memoryview_copy", 1);
 
   /* "View.MemoryView":1083
  *     "Create a new memoryview object"
@@ -13034,14 +14513,13 @@ static PyObject *__pyx_memoryview_copy_object_from_slice(struct __pyx_memoryview
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   int __pyx_t_1;
-  int __pyx_t_2;
-  PyObject *(*__pyx_t_3)(char *);
-  int (*__pyx_t_4)(char *, PyObject *);
-  PyObject *__pyx_t_5 = NULL;
+  PyObject *(*__pyx_t_2)(char *);
+  int (*__pyx_t_3)(char *, PyObject *);
+  PyObject *__pyx_t_4 = NULL;
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
-  __Pyx_RefNannySetupContext("memoryview_copy_from_slice", 0);
+  __Pyx_RefNannySetupContext("memoryview_copy_from_slice", 1);
 
   /* "View.MemoryView":1094
  *     cdef int (*to_dtype_func)(char *, object) except 0
@@ -13051,8 +14529,7 @@ static PyObject *__pyx_memoryview_copy_object_from_slice(struct __pyx_memoryview
  *         to_dtype_func = (<_memoryviewslice> memview).to_dtype_func
  */
   __pyx_t_1 = __Pyx_TypeCheck(((PyObject *)__pyx_v_memview), __pyx_memoryviewslice_type); 
-  __pyx_t_2 = (__pyx_t_1 != 0);
-  if (__pyx_t_2) {
+  if (__pyx_t_1) {
 
     /* "View.MemoryView":1095
  * 
@@ -13061,8 +14538,8 @@ static PyObject *__pyx_memoryview_copy_object_from_slice(struct __pyx_memoryview
  *         to_dtype_func = (<_memoryviewslice> memview).to_dtype_func
  *     else:
  */
-    __pyx_t_3 = ((struct __pyx_memoryviewslice_obj *)__pyx_v_memview)->to_object_func;
-    __pyx_v_to_object_func = __pyx_t_3;
+    __pyx_t_2 = ((struct __pyx_memoryviewslice_obj *)__pyx_v_memview)->to_object_func;
+    __pyx_v_to_object_func = __pyx_t_2;
 
     /* "View.MemoryView":1096
  *     if isinstance(memview, _memoryviewslice):
@@ -13071,8 +14548,8 @@ static PyObject *__pyx_memoryview_copy_object_from_slice(struct __pyx_memoryview
  *     else:
  *         to_object_func = NULL
  */
-    __pyx_t_4 = ((struct __pyx_memoryviewslice_obj *)__pyx_v_memview)->to_dtype_func;
-    __pyx_v_to_dtype_func = __pyx_t_4;
+    __pyx_t_3 = ((struct __pyx_memoryviewslice_obj *)__pyx_v_memview)->to_dtype_func;
+    __pyx_v_to_dtype_func = __pyx_t_3;
 
     /* "View.MemoryView":1094
  *     cdef int (*to_dtype_func)(char *, object) except 0
@@ -13121,10 +14598,10 @@ static PyObject *__pyx_memoryview_copy_object_from_slice(struct __pyx_memoryview
  * 
  * 
  */
-  __pyx_t_5 = __pyx_memoryview_fromslice((__pyx_v_memviewslice[0]), __pyx_v_memview->view.ndim, __pyx_v_to_object_func, __pyx_v_to_dtype_func, __pyx_v_memview->dtype_is_object); if (unlikely(!__pyx_t_5)) __PYX_ERR(1, 1101, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_5);
-  __pyx_r = __pyx_t_5;
-  __pyx_t_5 = 0;
+  __pyx_t_4 = __pyx_memoryview_fromslice((__pyx_v_memviewslice[0]), __pyx_v_memview->view.ndim, __pyx_v_to_object_func, __pyx_v_to_dtype_func, __pyx_v_memview->dtype_is_object); if (unlikely(!__pyx_t_4)) __PYX_ERR(1, 1101, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_r = __pyx_t_4;
+  __pyx_t_4 = 0;
   goto __pyx_L0;
 
   /* "View.MemoryView":1087
@@ -13137,7 +14614,7 @@ static PyObject *__pyx_memoryview_copy_object_from_slice(struct __pyx_memoryview
 
   /* function exit code */
   __pyx_L1_error:;
-  __Pyx_XDECREF(__pyx_t_5);
+  __Pyx_XDECREF(__pyx_t_4);
   __Pyx_AddTraceback("View.MemoryView.memoryview_copy_from_slice", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = 0;
   __pyx_L0:;
@@ -13149,62 +14626,38 @@ static PyObject *__pyx_memoryview_copy_object_from_slice(struct __pyx_memoryview
 /* "View.MemoryView":1109
  * 
  * 
- * cdef Py_ssize_t abs_py_ssize_t(Py_ssize_t arg) nogil:             # <<<<<<<<<<<<<<
- *     if arg < 0:
- *         return -arg
+ * cdef Py_ssize_t abs_py_ssize_t(Py_ssize_t arg) noexcept nogil:             # <<<<<<<<<<<<<<
+ *     return -arg if arg < 0 else arg
+ * 
  */
 
 static Py_ssize_t abs_py_ssize_t(Py_ssize_t __pyx_v_arg) {
   Py_ssize_t __pyx_r;
-  int __pyx_t_1;
+  Py_ssize_t __pyx_t_1;
+  int __pyx_t_2;
 
   /* "View.MemoryView":1110
  * 
- * cdef Py_ssize_t abs_py_ssize_t(Py_ssize_t arg) nogil:
- *     if arg < 0:             # <<<<<<<<<<<<<<
- *         return -arg
- *     else:
- */
-  __pyx_t_1 = ((__pyx_v_arg < 0) != 0);
-  if (__pyx_t_1) {
-
-    /* "View.MemoryView":1111
- * cdef Py_ssize_t abs_py_ssize_t(Py_ssize_t arg) nogil:
- *     if arg < 0:
- *         return -arg             # <<<<<<<<<<<<<<
- *     else:
- *         return arg
- */
-    __pyx_r = (-__pyx_v_arg);
-    goto __pyx_L0;
-
-    /* "View.MemoryView":1110
- * 
- * cdef Py_ssize_t abs_py_ssize_t(Py_ssize_t arg) nogil:
- *     if arg < 0:             # <<<<<<<<<<<<<<
- *         return -arg
- *     else:
- */
-  }
-
-  /* "View.MemoryView":1113
- *         return -arg
- *     else:
- *         return arg             # <<<<<<<<<<<<<<
+ * cdef Py_ssize_t abs_py_ssize_t(Py_ssize_t arg) noexcept nogil:
+ *     return -arg if arg < 0 else arg             # <<<<<<<<<<<<<<
  * 
  * @cname('__pyx_get_best_slice_order')
  */
-  /*else*/ {
-    __pyx_r = __pyx_v_arg;
-    goto __pyx_L0;
+  __pyx_t_2 = (__pyx_v_arg < 0);
+  if (__pyx_t_2) {
+    __pyx_t_1 = (-__pyx_v_arg);
+  } else {
+    __pyx_t_1 = __pyx_v_arg;
   }
+  __pyx_r = __pyx_t_1;
+  goto __pyx_L0;
 
   /* "View.MemoryView":1109
  * 
  * 
- * cdef Py_ssize_t abs_py_ssize_t(Py_ssize_t arg) nogil:             # <<<<<<<<<<<<<<
- *     if arg < 0:
- *         return -arg
+ * cdef Py_ssize_t abs_py_ssize_t(Py_ssize_t arg) noexcept nogil:             # <<<<<<<<<<<<<<
+ *     return -arg if arg < 0 else arg
+ * 
  */
 
   /* function exit code */
@@ -13212,10 +14665,10 @@ static Py_ssize_t abs_py_ssize_t(Py_ssize_t __pyx_v_arg) {
   return __pyx_r;
 }
 
-/* "View.MemoryView":1116
+/* "View.MemoryView":1113
  * 
  * @cname('__pyx_get_best_slice_order')
- * cdef char get_best_order(__Pyx_memviewslice *mslice, int ndim) nogil:             # <<<<<<<<<<<<<<
+ * cdef char get_best_order(__Pyx_memviewslice *mslice, int ndim) noexcept nogil:             # <<<<<<<<<<<<<<
  *     """
  *     Figure out the best memory access order for a given slice.
  */
@@ -13230,7 +14683,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
   int __pyx_t_3;
   int __pyx_t_4;
 
-  /* "View.MemoryView":1121
+  /* "View.MemoryView":1118
  *     """
  *     cdef int i
  *     cdef Py_ssize_t c_stride = 0             # <<<<<<<<<<<<<<
@@ -13239,7 +14692,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
  */
   __pyx_v_c_stride = 0;
 
-  /* "View.MemoryView":1122
+  /* "View.MemoryView":1119
  *     cdef int i
  *     cdef Py_ssize_t c_stride = 0
  *     cdef Py_ssize_t f_stride = 0             # <<<<<<<<<<<<<<
@@ -13248,7 +14701,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
  */
   __pyx_v_f_stride = 0;
 
-  /* "View.MemoryView":1124
+  /* "View.MemoryView":1121
  *     cdef Py_ssize_t f_stride = 0
  * 
  *     for i in range(ndim - 1, -1, -1):             # <<<<<<<<<<<<<<
@@ -13258,17 +14711,17 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
   for (__pyx_t_1 = (__pyx_v_ndim - 1); __pyx_t_1 > -1; __pyx_t_1-=1) {
     __pyx_v_i = __pyx_t_1;
 
-    /* "View.MemoryView":1125
+    /* "View.MemoryView":1122
  * 
  *     for i in range(ndim - 1, -1, -1):
  *         if mslice.shape[i] > 1:             # <<<<<<<<<<<<<<
  *             c_stride = mslice.strides[i]
  *             break
  */
-    __pyx_t_2 = (((__pyx_v_mslice->shape[__pyx_v_i]) > 1) != 0);
+    __pyx_t_2 = ((__pyx_v_mslice->shape[__pyx_v_i]) > 1);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":1126
+      /* "View.MemoryView":1123
  *     for i in range(ndim - 1, -1, -1):
  *         if mslice.shape[i] > 1:
  *             c_stride = mslice.strides[i]             # <<<<<<<<<<<<<<
@@ -13277,7 +14730,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
  */
       __pyx_v_c_stride = (__pyx_v_mslice->strides[__pyx_v_i]);
 
-      /* "View.MemoryView":1127
+      /* "View.MemoryView":1124
  *         if mslice.shape[i] > 1:
  *             c_stride = mslice.strides[i]
  *             break             # <<<<<<<<<<<<<<
@@ -13286,7 +14739,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
  */
       goto __pyx_L4_break;
 
-      /* "View.MemoryView":1125
+      /* "View.MemoryView":1122
  * 
  *     for i in range(ndim - 1, -1, -1):
  *         if mslice.shape[i] > 1:             # <<<<<<<<<<<<<<
@@ -13297,7 +14750,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
   }
   __pyx_L4_break:;
 
-  /* "View.MemoryView":1129
+  /* "View.MemoryView":1126
  *             break
  * 
  *     for i in range(ndim):             # <<<<<<<<<<<<<<
@@ -13309,17 +14762,17 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
   for (__pyx_t_4 = 0; __pyx_t_4 < __pyx_t_3; __pyx_t_4+=1) {
     __pyx_v_i = __pyx_t_4;
 
-    /* "View.MemoryView":1130
+    /* "View.MemoryView":1127
  * 
  *     for i in range(ndim):
  *         if mslice.shape[i] > 1:             # <<<<<<<<<<<<<<
  *             f_stride = mslice.strides[i]
  *             break
  */
-    __pyx_t_2 = (((__pyx_v_mslice->shape[__pyx_v_i]) > 1) != 0);
+    __pyx_t_2 = ((__pyx_v_mslice->shape[__pyx_v_i]) > 1);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":1131
+      /* "View.MemoryView":1128
  *     for i in range(ndim):
  *         if mslice.shape[i] > 1:
  *             f_stride = mslice.strides[i]             # <<<<<<<<<<<<<<
@@ -13328,7 +14781,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
  */
       __pyx_v_f_stride = (__pyx_v_mslice->strides[__pyx_v_i]);
 
-      /* "View.MemoryView":1132
+      /* "View.MemoryView":1129
  *         if mslice.shape[i] > 1:
  *             f_stride = mslice.strides[i]
  *             break             # <<<<<<<<<<<<<<
@@ -13337,7 +14790,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
  */
       goto __pyx_L7_break;
 
-      /* "View.MemoryView":1130
+      /* "View.MemoryView":1127
  * 
  *     for i in range(ndim):
  *         if mslice.shape[i] > 1:             # <<<<<<<<<<<<<<
@@ -13348,17 +14801,17 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
   }
   __pyx_L7_break:;
 
-  /* "View.MemoryView":1134
+  /* "View.MemoryView":1131
  *             break
  * 
  *     if abs_py_ssize_t(c_stride) <= abs_py_ssize_t(f_stride):             # <<<<<<<<<<<<<<
  *         return 'C'
  *     else:
  */
-  __pyx_t_2 = ((abs_py_ssize_t(__pyx_v_c_stride) <= abs_py_ssize_t(__pyx_v_f_stride)) != 0);
+  __pyx_t_2 = (abs_py_ssize_t(__pyx_v_c_stride) <= abs_py_ssize_t(__pyx_v_f_stride));
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":1135
+    /* "View.MemoryView":1132
  * 
  *     if abs_py_ssize_t(c_stride) <= abs_py_ssize_t(f_stride):
  *         return 'C'             # <<<<<<<<<<<<<<
@@ -13368,7 +14821,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
     __pyx_r = 'C';
     goto __pyx_L0;
 
-    /* "View.MemoryView":1134
+    /* "View.MemoryView":1131
  *             break
  * 
  *     if abs_py_ssize_t(c_stride) <= abs_py_ssize_t(f_stride):             # <<<<<<<<<<<<<<
@@ -13377,7 +14830,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
  */
   }
 
-  /* "View.MemoryView":1137
+  /* "View.MemoryView":1134
  *         return 'C'
  *     else:
  *         return 'F'             # <<<<<<<<<<<<<<
@@ -13389,10 +14842,10 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
     goto __pyx_L0;
   }
 
-  /* "View.MemoryView":1116
+  /* "View.MemoryView":1113
  * 
  * @cname('__pyx_get_best_slice_order')
- * cdef char get_best_order(__Pyx_memviewslice *mslice, int ndim) nogil:             # <<<<<<<<<<<<<<
+ * cdef char get_best_order(__Pyx_memviewslice *mslice, int ndim) noexcept nogil:             # <<<<<<<<<<<<<<
  *     """
  *     Figure out the best memory access order for a given slice.
  */
@@ -13402,7 +14855,7 @@ static char __pyx_get_best_slice_order(__Pyx_memviewslice *__pyx_v_mslice, int _
   return __pyx_r;
 }
 
-/* "View.MemoryView":1140
+/* "View.MemoryView":1137
  * 
  * @cython.cdivision(True)
  * cdef void _copy_strided_to_strided(char *src_data, Py_ssize_t *src_strides,             # <<<<<<<<<<<<<<
@@ -13418,12 +14871,11 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
   Py_ssize_t __pyx_v_dst_stride;
   int __pyx_t_1;
   int __pyx_t_2;
-  int __pyx_t_3;
+  Py_ssize_t __pyx_t_3;
   Py_ssize_t __pyx_t_4;
   Py_ssize_t __pyx_t_5;
-  Py_ssize_t __pyx_t_6;
 
-  /* "View.MemoryView":1147
+  /* "View.MemoryView":1144
  * 
  *     cdef Py_ssize_t i
  *     cdef Py_ssize_t src_extent = src_shape[0]             # <<<<<<<<<<<<<<
@@ -13432,7 +14884,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
  */
   __pyx_v_src_extent = (__pyx_v_src_shape[0]);
 
-  /* "View.MemoryView":1148
+  /* "View.MemoryView":1145
  *     cdef Py_ssize_t i
  *     cdef Py_ssize_t src_extent = src_shape[0]
  *     cdef Py_ssize_t dst_extent = dst_shape[0]             # <<<<<<<<<<<<<<
@@ -13441,7 +14893,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
  */
   __pyx_v_dst_extent = (__pyx_v_dst_shape[0]);
 
-  /* "View.MemoryView":1149
+  /* "View.MemoryView":1146
  *     cdef Py_ssize_t src_extent = src_shape[0]
  *     cdef Py_ssize_t dst_extent = dst_shape[0]
  *     cdef Py_ssize_t src_stride = src_strides[0]             # <<<<<<<<<<<<<<
@@ -13450,7 +14902,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
  */
   __pyx_v_src_stride = (__pyx_v_src_strides[0]);
 
-  /* "View.MemoryView":1150
+  /* "View.MemoryView":1147
  *     cdef Py_ssize_t dst_extent = dst_shape[0]
  *     cdef Py_ssize_t src_stride = src_strides[0]
  *     cdef Py_ssize_t dst_stride = dst_strides[0]             # <<<<<<<<<<<<<<
@@ -13459,114 +14911,113 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
  */
   __pyx_v_dst_stride = (__pyx_v_dst_strides[0]);
 
-  /* "View.MemoryView":1152
+  /* "View.MemoryView":1149
  *     cdef Py_ssize_t dst_stride = dst_strides[0]
  * 
  *     if ndim == 1:             # <<<<<<<<<<<<<<
- *        if (src_stride > 0 and dst_stride > 0 and
- *            <size_t> src_stride == itemsize == <size_t> dst_stride):
+ *         if (src_stride > 0 and dst_stride > 0 and
+ *             <size_t> src_stride == itemsize == <size_t> dst_stride):
  */
-  __pyx_t_1 = ((__pyx_v_ndim == 1) != 0);
+  __pyx_t_1 = (__pyx_v_ndim == 1);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":1153
+    /* "View.MemoryView":1150
  * 
  *     if ndim == 1:
- *        if (src_stride > 0 and dst_stride > 0 and             # <<<<<<<<<<<<<<
- *            <size_t> src_stride == itemsize == <size_t> dst_stride):
- *            memcpy(dst_data, src_data, itemsize * dst_extent)
+ *         if (src_stride > 0 and dst_stride > 0 and             # <<<<<<<<<<<<<<
+ *             <size_t> src_stride == itemsize == <size_t> dst_stride):
+ *             memcpy(dst_data, src_data, itemsize * dst_extent)
  */
-    __pyx_t_2 = ((__pyx_v_src_stride > 0) != 0);
+    __pyx_t_2 = (__pyx_v_src_stride > 0);
     if (__pyx_t_2) {
     } else {
       __pyx_t_1 = __pyx_t_2;
       goto __pyx_L5_bool_binop_done;
     }
-    __pyx_t_2 = ((__pyx_v_dst_stride > 0) != 0);
+    __pyx_t_2 = (__pyx_v_dst_stride > 0);
     if (__pyx_t_2) {
     } else {
       __pyx_t_1 = __pyx_t_2;
       goto __pyx_L5_bool_binop_done;
     }
 
-    /* "View.MemoryView":1154
+    /* "View.MemoryView":1151
  *     if ndim == 1:
- *        if (src_stride > 0 and dst_stride > 0 and
- *            <size_t> src_stride == itemsize == <size_t> dst_stride):             # <<<<<<<<<<<<<<
- *            memcpy(dst_data, src_data, itemsize * dst_extent)
- *        else:
+ *         if (src_stride > 0 and dst_stride > 0 and
+ *             <size_t> src_stride == itemsize == <size_t> dst_stride):             # <<<<<<<<<<<<<<
+ *             memcpy(dst_data, src_data, itemsize * dst_extent)
+ *         else:
  */
     __pyx_t_2 = (((size_t)__pyx_v_src_stride) == __pyx_v_itemsize);
     if (__pyx_t_2) {
       __pyx_t_2 = (__pyx_v_itemsize == ((size_t)__pyx_v_dst_stride));
     }
-    __pyx_t_3 = (__pyx_t_2 != 0);
-    __pyx_t_1 = __pyx_t_3;
+    __pyx_t_1 = __pyx_t_2;
     __pyx_L5_bool_binop_done:;
 
-    /* "View.MemoryView":1153
+    /* "View.MemoryView":1150
  * 
  *     if ndim == 1:
- *        if (src_stride > 0 and dst_stride > 0 and             # <<<<<<<<<<<<<<
- *            <size_t> src_stride == itemsize == <size_t> dst_stride):
- *            memcpy(dst_data, src_data, itemsize * dst_extent)
+ *         if (src_stride > 0 and dst_stride > 0 and             # <<<<<<<<<<<<<<
+ *             <size_t> src_stride == itemsize == <size_t> dst_stride):
+ *             memcpy(dst_data, src_data, itemsize * dst_extent)
  */
     if (__pyx_t_1) {
 
-      /* "View.MemoryView":1155
- *        if (src_stride > 0 and dst_stride > 0 and
- *            <size_t> src_stride == itemsize == <size_t> dst_stride):
- *            memcpy(dst_data, src_data, itemsize * dst_extent)             # <<<<<<<<<<<<<<
- *        else:
- *            for i in range(dst_extent):
+      /* "View.MemoryView":1152
+ *         if (src_stride > 0 and dst_stride > 0 and
+ *             <size_t> src_stride == itemsize == <size_t> dst_stride):
+ *             memcpy(dst_data, src_data, itemsize * dst_extent)             # <<<<<<<<<<<<<<
+ *         else:
+ *             for i in range(dst_extent):
  */
       (void)(memcpy(__pyx_v_dst_data, __pyx_v_src_data, (__pyx_v_itemsize * __pyx_v_dst_extent)));
 
-      /* "View.MemoryView":1153
+      /* "View.MemoryView":1150
  * 
  *     if ndim == 1:
- *        if (src_stride > 0 and dst_stride > 0 and             # <<<<<<<<<<<<<<
- *            <size_t> src_stride == itemsize == <size_t> dst_stride):
- *            memcpy(dst_data, src_data, itemsize * dst_extent)
+ *         if (src_stride > 0 and dst_stride > 0 and             # <<<<<<<<<<<<<<
+ *             <size_t> src_stride == itemsize == <size_t> dst_stride):
+ *             memcpy(dst_data, src_data, itemsize * dst_extent)
  */
       goto __pyx_L4;
     }
 
-    /* "View.MemoryView":1157
- *            memcpy(dst_data, src_data, itemsize * dst_extent)
- *        else:
- *            for i in range(dst_extent):             # <<<<<<<<<<<<<<
- *                memcpy(dst_data, src_data, itemsize)
- *                src_data += src_stride
+    /* "View.MemoryView":1154
+ *             memcpy(dst_data, src_data, itemsize * dst_extent)
+ *         else:
+ *             for i in range(dst_extent):             # <<<<<<<<<<<<<<
+ *                 memcpy(dst_data, src_data, itemsize)
+ *                 src_data += src_stride
  */
     /*else*/ {
-      __pyx_t_4 = __pyx_v_dst_extent;
-      __pyx_t_5 = __pyx_t_4;
-      for (__pyx_t_6 = 0; __pyx_t_6 < __pyx_t_5; __pyx_t_6+=1) {
-        __pyx_v_i = __pyx_t_6;
-
-        /* "View.MemoryView":1158
- *        else:
- *            for i in range(dst_extent):
- *                memcpy(dst_data, src_data, itemsize)             # <<<<<<<<<<<<<<
- *                src_data += src_stride
- *                dst_data += dst_stride
+      __pyx_t_3 = __pyx_v_dst_extent;
+      __pyx_t_4 = __pyx_t_3;
+      for (__pyx_t_5 = 0; __pyx_t_5 < __pyx_t_4; __pyx_t_5+=1) {
+        __pyx_v_i = __pyx_t_5;
+
+        /* "View.MemoryView":1155
+ *         else:
+ *             for i in range(dst_extent):
+ *                 memcpy(dst_data, src_data, itemsize)             # <<<<<<<<<<<<<<
+ *                 src_data += src_stride
+ *                 dst_data += dst_stride
  */
         (void)(memcpy(__pyx_v_dst_data, __pyx_v_src_data, __pyx_v_itemsize));
 
-        /* "View.MemoryView":1159
- *            for i in range(dst_extent):
- *                memcpy(dst_data, src_data, itemsize)
- *                src_data += src_stride             # <<<<<<<<<<<<<<
- *                dst_data += dst_stride
+        /* "View.MemoryView":1156
+ *             for i in range(dst_extent):
+ *                 memcpy(dst_data, src_data, itemsize)
+ *                 src_data += src_stride             # <<<<<<<<<<<<<<
+ *                 dst_data += dst_stride
  *     else:
  */
         __pyx_v_src_data = (__pyx_v_src_data + __pyx_v_src_stride);
 
-        /* "View.MemoryView":1160
- *                memcpy(dst_data, src_data, itemsize)
- *                src_data += src_stride
- *                dst_data += dst_stride             # <<<<<<<<<<<<<<
+        /* "View.MemoryView":1157
+ *                 memcpy(dst_data, src_data, itemsize)
+ *                 src_data += src_stride
+ *                 dst_data += dst_stride             # <<<<<<<<<<<<<<
  *     else:
  *         for i in range(dst_extent):
  */
@@ -13575,30 +15026,30 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
     }
     __pyx_L4:;
 
-    /* "View.MemoryView":1152
+    /* "View.MemoryView":1149
  *     cdef Py_ssize_t dst_stride = dst_strides[0]
  * 
  *     if ndim == 1:             # <<<<<<<<<<<<<<
- *        if (src_stride > 0 and dst_stride > 0 and
- *            <size_t> src_stride == itemsize == <size_t> dst_stride):
+ *         if (src_stride > 0 and dst_stride > 0 and
+ *             <size_t> src_stride == itemsize == <size_t> dst_stride):
  */
     goto __pyx_L3;
   }
 
-  /* "View.MemoryView":1162
- *                dst_data += dst_stride
+  /* "View.MemoryView":1159
+ *                 dst_data += dst_stride
  *     else:
  *         for i in range(dst_extent):             # <<<<<<<<<<<<<<
  *             _copy_strided_to_strided(src_data, src_strides + 1,
  *                                      dst_data, dst_strides + 1,
  */
   /*else*/ {
-    __pyx_t_4 = __pyx_v_dst_extent;
-    __pyx_t_5 = __pyx_t_4;
-    for (__pyx_t_6 = 0; __pyx_t_6 < __pyx_t_5; __pyx_t_6+=1) {
-      __pyx_v_i = __pyx_t_6;
+    __pyx_t_3 = __pyx_v_dst_extent;
+    __pyx_t_4 = __pyx_t_3;
+    for (__pyx_t_5 = 0; __pyx_t_5 < __pyx_t_4; __pyx_t_5+=1) {
+      __pyx_v_i = __pyx_t_5;
 
-      /* "View.MemoryView":1163
+      /* "View.MemoryView":1160
  *     else:
  *         for i in range(dst_extent):
  *             _copy_strided_to_strided(src_data, src_strides + 1,             # <<<<<<<<<<<<<<
@@ -13607,7 +15058,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
  */
       _copy_strided_to_strided(__pyx_v_src_data, (__pyx_v_src_strides + 1), __pyx_v_dst_data, (__pyx_v_dst_strides + 1), (__pyx_v_src_shape + 1), (__pyx_v_dst_shape + 1), (__pyx_v_ndim - 1), __pyx_v_itemsize);
 
-      /* "View.MemoryView":1167
+      /* "View.MemoryView":1164
  *                                      src_shape + 1, dst_shape + 1,
  *                                      ndim - 1, itemsize)
  *             src_data += src_stride             # <<<<<<<<<<<<<<
@@ -13616,7 +15067,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
  */
       __pyx_v_src_data = (__pyx_v_src_data + __pyx_v_src_stride);
 
-      /* "View.MemoryView":1168
+      /* "View.MemoryView":1165
  *                                      ndim - 1, itemsize)
  *             src_data += src_stride
  *             dst_data += dst_stride             # <<<<<<<<<<<<<<
@@ -13628,7 +15079,7 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
   }
   __pyx_L3:;
 
-  /* "View.MemoryView":1140
+  /* "View.MemoryView":1137
  * 
  * @cython.cdivision(True)
  * cdef void _copy_strided_to_strided(char *src_data, Py_ssize_t *src_strides,             # <<<<<<<<<<<<<<
@@ -13639,40 +15090,40 @@ static void _copy_strided_to_strided(char *__pyx_v_src_data, Py_ssize_t *__pyx_v
   /* function exit code */
 }
 
-/* "View.MemoryView":1170
+/* "View.MemoryView":1167
  *             dst_data += dst_stride
  * 
  * cdef void copy_strided_to_strided(__Pyx_memviewslice *src,             # <<<<<<<<<<<<<<
  *                                   __Pyx_memviewslice *dst,
- *                                   int ndim, size_t itemsize) nogil:
+ *                                   int ndim, size_t itemsize) noexcept nogil:
  */
 
 static void copy_strided_to_strided(__Pyx_memviewslice *__pyx_v_src, __Pyx_memviewslice *__pyx_v_dst, int __pyx_v_ndim, size_t __pyx_v_itemsize) {
 
-  /* "View.MemoryView":1173
+  /* "View.MemoryView":1170
  *                                   __Pyx_memviewslice *dst,
- *                                   int ndim, size_t itemsize) nogil:
+ *                                   int ndim, size_t itemsize) noexcept nogil:
  *     _copy_strided_to_strided(src.data, src.strides, dst.data, dst.strides,             # <<<<<<<<<<<<<<
  *                              src.shape, dst.shape, ndim, itemsize)
  * 
  */
   _copy_strided_to_strided(__pyx_v_src->data, __pyx_v_src->strides, __pyx_v_dst->data, __pyx_v_dst->strides, __pyx_v_src->shape, __pyx_v_dst->shape, __pyx_v_ndim, __pyx_v_itemsize);
 
-  /* "View.MemoryView":1170
+  /* "View.MemoryView":1167
  *             dst_data += dst_stride
  * 
  * cdef void copy_strided_to_strided(__Pyx_memviewslice *src,             # <<<<<<<<<<<<<<
  *                                   __Pyx_memviewslice *dst,
- *                                   int ndim, size_t itemsize) nogil:
+ *                                   int ndim, size_t itemsize) noexcept nogil:
  */
 
   /* function exit code */
 }
 
-/* "View.MemoryView":1177
+/* "View.MemoryView":1174
  * 
  * @cname('__pyx_memoryview_slice_get_size')
- * cdef Py_ssize_t slice_get_size(__Pyx_memviewslice *src, int ndim) nogil:             # <<<<<<<<<<<<<<
+ * cdef Py_ssize_t slice_get_size(__Pyx_memviewslice *src, int ndim) noexcept nogil:             # <<<<<<<<<<<<<<
  *     "Return the size of the memory occupied by the slice in number of bytes"
  *     cdef Py_ssize_t shape, size = src.memview.view.itemsize
  */
@@ -13686,8 +15137,8 @@ static Py_ssize_t __pyx_memoryview_slice_get_size(__Pyx_memviewslice *__pyx_v_sr
   Py_ssize_t *__pyx_t_3;
   Py_ssize_t *__pyx_t_4;
 
-  /* "View.MemoryView":1179
- * cdef Py_ssize_t slice_get_size(__Pyx_memviewslice *src, int ndim) nogil:
+  /* "View.MemoryView":1176
+ * cdef Py_ssize_t slice_get_size(__Pyx_memviewslice *src, int ndim) noexcept nogil:
  *     "Return the size of the memory occupied by the slice in number of bytes"
  *     cdef Py_ssize_t shape, size = src.memview.view.itemsize             # <<<<<<<<<<<<<<
  * 
@@ -13696,7 +15147,7 @@ static Py_ssize_t __pyx_memoryview_slice_get_size(__Pyx_memviewslice *__pyx_v_sr
   __pyx_t_1 = __pyx_v_src->memview->view.itemsize;
   __pyx_v_size = __pyx_t_1;
 
-  /* "View.MemoryView":1181
+  /* "View.MemoryView":1178
  *     cdef Py_ssize_t shape, size = src.memview.view.itemsize
  * 
  *     for shape in src.shape[:ndim]:             # <<<<<<<<<<<<<<
@@ -13708,7 +15159,7 @@ static Py_ssize_t __pyx_memoryview_slice_get_size(__Pyx_memviewslice *__pyx_v_sr
     __pyx_t_2 = __pyx_t_4;
     __pyx_v_shape = (__pyx_t_2[0]);
 
-    /* "View.MemoryView":1182
+    /* "View.MemoryView":1179
  * 
  *     for shape in src.shape[:ndim]:
  *         size *= shape             # <<<<<<<<<<<<<<
@@ -13718,7 +15169,7 @@ static Py_ssize_t __pyx_memoryview_slice_get_size(__Pyx_memviewslice *__pyx_v_sr
     __pyx_v_size = (__pyx_v_size * __pyx_v_shape);
   }
 
-  /* "View.MemoryView":1184
+  /* "View.MemoryView":1181
  *         size *= shape
  * 
  *     return size             # <<<<<<<<<<<<<<
@@ -13728,10 +15179,10 @@ static Py_ssize_t __pyx_memoryview_slice_get_size(__Pyx_memviewslice *__pyx_v_sr
   __pyx_r = __pyx_v_size;
   goto __pyx_L0;
 
-  /* "View.MemoryView":1177
+  /* "View.MemoryView":1174
  * 
  * @cname('__pyx_memoryview_slice_get_size')
- * cdef Py_ssize_t slice_get_size(__Pyx_memviewslice *src, int ndim) nogil:             # <<<<<<<<<<<<<<
+ * cdef Py_ssize_t slice_get_size(__Pyx_memviewslice *src, int ndim) noexcept nogil:             # <<<<<<<<<<<<<<
  *     "Return the size of the memory occupied by the slice in number of bytes"
  *     cdef Py_ssize_t shape, size = src.memview.view.itemsize
  */
@@ -13741,12 +15192,12 @@ static Py_ssize_t __pyx_memoryview_slice_get_size(__Pyx_memviewslice *__pyx_v_sr
   return __pyx_r;
 }
 
-/* "View.MemoryView":1187
+/* "View.MemoryView":1184
  * 
  * @cname('__pyx_fill_contig_strides_array')
  * cdef Py_ssize_t fill_contig_strides_array(             # <<<<<<<<<<<<<<
  *                 Py_ssize_t *shape, Py_ssize_t *strides, Py_ssize_t stride,
- *                 int ndim, char order) nogil:
+ *                 int ndim, char order) noexcept nogil:
  */
 
 static Py_ssize_t __pyx_fill_contig_strides_array(Py_ssize_t *__pyx_v_shape, Py_ssize_t *__pyx_v_strides, Py_ssize_t __pyx_v_stride, int __pyx_v_ndim, char __pyx_v_order) {
@@ -13757,17 +15208,17 @@ static Py_ssize_t __pyx_fill_contig_strides_array(Py_ssize_t *__pyx_v_shape, Py_
   int __pyx_t_3;
   int __pyx_t_4;
 
-  /* "View.MemoryView":1196
+  /* "View.MemoryView":1193
  *     cdef int idx
  * 
  *     if order == 'F':             # <<<<<<<<<<<<<<
  *         for idx in range(ndim):
  *             strides[idx] = stride
  */
-  __pyx_t_1 = ((__pyx_v_order == 'F') != 0);
+  __pyx_t_1 = (__pyx_v_order == 'F');
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":1197
+    /* "View.MemoryView":1194
  * 
  *     if order == 'F':
  *         for idx in range(ndim):             # <<<<<<<<<<<<<<
@@ -13779,7 +15230,7 @@ static Py_ssize_t __pyx_fill_contig_strides_array(Py_ssize_t *__pyx_v_shape, Py_
     for (__pyx_t_4 = 0; __pyx_t_4 < __pyx_t_3; __pyx_t_4+=1) {
       __pyx_v_idx = __pyx_t_4;
 
-      /* "View.MemoryView":1198
+      /* "View.MemoryView":1195
  *     if order == 'F':
  *         for idx in range(ndim):
  *             strides[idx] = stride             # <<<<<<<<<<<<<<
@@ -13788,7 +15239,7 @@ static Py_ssize_t __pyx_fill_contig_strides_array(Py_ssize_t *__pyx_v_shape, Py_
  */
       (__pyx_v_strides[__pyx_v_idx]) = __pyx_v_stride;
 
-      /* "View.MemoryView":1199
+      /* "View.MemoryView":1196
  *         for idx in range(ndim):
  *             strides[idx] = stride
  *             stride *= shape[idx]             # <<<<<<<<<<<<<<
@@ -13798,7 +15249,7 @@ static Py_ssize_t __pyx_fill_contig_strides_array(Py_ssize_t *__pyx_v_shape, Py_
       __pyx_v_stride = (__pyx_v_stride * (__pyx_v_shape[__pyx_v_idx]));
     }
 
-    /* "View.MemoryView":1196
+    /* "View.MemoryView":1193
  *     cdef int idx
  * 
  *     if order == 'F':             # <<<<<<<<<<<<<<
@@ -13808,7 +15259,7 @@ static Py_ssize_t __pyx_fill_contig_strides_array(Py_ssize_t *__pyx_v_shape, Py_
     goto __pyx_L3;
   }
 
-  /* "View.MemoryView":1201
+  /* "View.MemoryView":1198
  *             stride *= shape[idx]
  *     else:
  *         for idx in range(ndim - 1, -1, -1):             # <<<<<<<<<<<<<<
@@ -13819,7 +15270,7 @@ static Py_ssize_t __pyx_fill_contig_strides_array(Py_ssize_t *__pyx_v_shape, Py_
     for (__pyx_t_2 = (__pyx_v_ndim - 1); __pyx_t_2 > -1; __pyx_t_2-=1) {
       __pyx_v_idx = __pyx_t_2;
 
-      /* "View.MemoryView":1202
+      /* "View.MemoryView":1199
  *     else:
  *         for idx in range(ndim - 1, -1, -1):
  *             strides[idx] = stride             # <<<<<<<<<<<<<<
@@ -13828,7 +15279,7 @@ static Py_ssize_t __pyx_fill_contig_strides_array(Py_ssize_t *__pyx_v_shape, Py_
  */
       (__pyx_v_strides[__pyx_v_idx]) = __pyx_v_stride;
 
-      /* "View.MemoryView":1203
+      /* "View.MemoryView":1200
  *         for idx in range(ndim - 1, -1, -1):
  *             strides[idx] = stride
  *             stride *= shape[idx]             # <<<<<<<<<<<<<<
@@ -13840,7 +15291,7 @@ static Py_ssize_t __pyx_fill_contig_strides_array(Py_ssize_t *__pyx_v_shape, Py_
   }
   __pyx_L3:;
 
-  /* "View.MemoryView":1205
+  /* "View.MemoryView":1202
  *             stride *= shape[idx]
  * 
  *     return stride             # <<<<<<<<<<<<<<
@@ -13850,12 +15301,12 @@ static Py_ssize_t __pyx_fill_contig_strides_array(Py_ssize_t *__pyx_v_shape, Py_
   __pyx_r = __pyx_v_stride;
   goto __pyx_L0;
 
-  /* "View.MemoryView":1187
+  /* "View.MemoryView":1184
  * 
  * @cname('__pyx_fill_contig_strides_array')
  * cdef Py_ssize_t fill_contig_strides_array(             # <<<<<<<<<<<<<<
  *                 Py_ssize_t *shape, Py_ssize_t *strides, Py_ssize_t stride,
- *                 int ndim, char order) nogil:
+ *                 int ndim, char order) noexcept nogil:
  */
 
   /* function exit code */
@@ -13863,7 +15314,7 @@ static Py_ssize_t __pyx_fill_contig_strides_array(Py_ssize_t *__pyx_v_shape, Py_
   return __pyx_r;
 }
 
-/* "View.MemoryView":1208
+/* "View.MemoryView":1205
  * 
  * @cname('__pyx_memoryview_copy_data_to_temp')
  * cdef void *copy_data_to_temp(__Pyx_memviewslice *src,             # <<<<<<<<<<<<<<
@@ -13886,8 +15337,11 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
+  #ifdef WITH_THREAD
+  PyGILState_STATE __pyx_gilstate_save;
+  #endif
 
-  /* "View.MemoryView":1219
+  /* "View.MemoryView":1216
  *     cdef void *result
  * 
  *     cdef size_t itemsize = src.memview.view.itemsize             # <<<<<<<<<<<<<<
@@ -13897,7 +15351,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
   __pyx_t_1 = __pyx_v_src->memview->view.itemsize;
   __pyx_v_itemsize = __pyx_t_1;
 
-  /* "View.MemoryView":1220
+  /* "View.MemoryView":1217
  * 
  *     cdef size_t itemsize = src.memview.view.itemsize
  *     cdef size_t size = slice_get_size(src, ndim)             # <<<<<<<<<<<<<<
@@ -13906,44 +15360,44 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
  */
   __pyx_v_size = __pyx_memoryview_slice_get_size(__pyx_v_src, __pyx_v_ndim);
 
-  /* "View.MemoryView":1222
+  /* "View.MemoryView":1219
  *     cdef size_t size = slice_get_size(src, ndim)
  * 
  *     result = malloc(size)             # <<<<<<<<<<<<<<
  *     if not result:
- *         _err(MemoryError, NULL)
+ *         _err_no_memory()
  */
   __pyx_v_result = malloc(__pyx_v_size);
 
-  /* "View.MemoryView":1223
+  /* "View.MemoryView":1220
  * 
  *     result = malloc(size)
  *     if not result:             # <<<<<<<<<<<<<<
- *         _err(MemoryError, NULL)
+ *         _err_no_memory()
  * 
  */
-  __pyx_t_2 = ((!(__pyx_v_result != 0)) != 0);
+  __pyx_t_2 = (!(__pyx_v_result != 0));
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":1224
+    /* "View.MemoryView":1221
  *     result = malloc(size)
  *     if not result:
- *         _err(MemoryError, NULL)             # <<<<<<<<<<<<<<
+ *         _err_no_memory()             # <<<<<<<<<<<<<<
  * 
  * 
  */
-    __pyx_t_3 = __pyx_memoryview_err(__pyx_builtin_MemoryError, NULL); if (unlikely(__pyx_t_3 == ((int)-1))) __PYX_ERR(1, 1224, __pyx_L1_error)
+    __pyx_t_3 = __pyx_memoryview_err_no_memory(); if (unlikely(__pyx_t_3 == ((int)-1))) __PYX_ERR(1, 1221, __pyx_L1_error)
 
-    /* "View.MemoryView":1223
+    /* "View.MemoryView":1220
  * 
  *     result = malloc(size)
  *     if not result:             # <<<<<<<<<<<<<<
- *         _err(MemoryError, NULL)
+ *         _err_no_memory()
  * 
  */
   }
 
-  /* "View.MemoryView":1227
+  /* "View.MemoryView":1224
  * 
  * 
  *     tmpslice.data = <char *> result             # <<<<<<<<<<<<<<
@@ -13952,7 +15406,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
  */
   __pyx_v_tmpslice->data = ((char *)__pyx_v_result);
 
-  /* "View.MemoryView":1228
+  /* "View.MemoryView":1225
  * 
  *     tmpslice.data = <char *> result
  *     tmpslice.memview = src.memview             # <<<<<<<<<<<<<<
@@ -13962,7 +15416,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
   __pyx_t_4 = __pyx_v_src->memview;
   __pyx_v_tmpslice->memview = __pyx_t_4;
 
-  /* "View.MemoryView":1229
+  /* "View.MemoryView":1226
  *     tmpslice.data = <char *> result
  *     tmpslice.memview = src.memview
  *     for i in range(ndim):             # <<<<<<<<<<<<<<
@@ -13974,7 +15428,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
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-    /* "View.MemoryView":1230
+    /* "View.MemoryView":1227
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  *     for i in range(ndim):
  *         tmpslice.shape[i] = src.shape[i]             # <<<<<<<<<<<<<<
@@ -13983,26 +15437,26 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
  */
     (__pyx_v_tmpslice->shape[__pyx_v_i]) = (__pyx_v_src->shape[__pyx_v_i]);
 
-    /* "View.MemoryView":1231
+    /* "View.MemoryView":1228
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  *         tmpslice.suboffsets[i] = -1             # <<<<<<<<<<<<<<
  * 
- *     fill_contig_strides_array(&tmpslice.shape[0], &tmpslice.strides[0], itemsize,
+ *     fill_contig_strides_array(&tmpslice.shape[0], &tmpslice.strides[0], itemsize, ndim, order)
  */
     (__pyx_v_tmpslice->suboffsets[__pyx_v_i]) = -1L;
   }
 
-  /* "View.MemoryView":1233
+  /* "View.MemoryView":1230
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  * 
- *     fill_contig_strides_array(&tmpslice.shape[0], &tmpslice.strides[0], itemsize,             # <<<<<<<<<<<<<<
- *                               ndim, order)
+ *     fill_contig_strides_array(&tmpslice.shape[0], &tmpslice.strides[0], itemsize, ndim, order)             # <<<<<<<<<<<<<<
+ * 
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-  /* "View.MemoryView":1237
+  /* "View.MemoryView":1233
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-    /* "View.MemoryView":1238
+    /* "View.MemoryView":1234
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-    __pyx_t_2 = (((__pyx_v_tmpslice->shape[__pyx_v_i]) == 1) != 0);
+    __pyx_t_2 = ((__pyx_v_tmpslice->shape[__pyx_v_i]) == 1);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":1239
+      /* "View.MemoryView":1235
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-      /* "View.MemoryView":1238
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-  /* "View.MemoryView":1241
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  *     if slice_is_contig(src[0], order, ndim):             # <<<<<<<<<<<<<<
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  *     else:
  */
-  __pyx_t_2 = (__pyx_memviewslice_is_contig((__pyx_v_src[0]), __pyx_v_order, __pyx_v_ndim) != 0);
+  __pyx_t_2 = __pyx_memviewslice_is_contig((__pyx_v_src[0]), __pyx_v_order, __pyx_v_ndim);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":1242
+    /* "View.MemoryView":1238
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-    /* "View.MemoryView":1241
+    /* "View.MemoryView":1237
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@@ -14072,7 +15526,7 @@ static void *__pyx_memoryview_copy_data_to_temp(__Pyx_memviewslice *__pyx_v_src,
     goto __pyx_L9;
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-  /* "View.MemoryView":1244
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-  /* "View.MemoryView":1246
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-  /* "View.MemoryView":1208
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- *     raise ValueError("got differing extents in dimension %d (got %d and %d)" %
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 static int __pyx_memoryview_err_extents(int __pyx_v_i, Py_ssize_t __pyx_v_extent1, Py_ssize_t __pyx_v_extent2) {
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   __Pyx_RefNannyDeclarations
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-  PyObject *__pyx_t_2 = NULL;
-  PyObject *__pyx_t_3 = NULL;
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+  Py_UCS4 __pyx_t_3;
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-  /* "View.MemoryView":1251
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-/* "View.MemoryView":1257
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-static int __pyx_memoryview_err_dim(PyObject *__pyx_v_error, char *__pyx_v_msg, int __pyx_v_dim) {
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-  /* "View.MemoryView":1257
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+ * cdef int _err_dim(PyObject *error, str msg, int dim) except -1 with gil:             # <<<<<<<<<<<<<<
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@@ -14278,11 +15716,9 @@ static int __pyx_memoryview_err_dim(PyObject *__pyx_v_error, char *__pyx_v_msg,
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 }
 
-/* "View.MemoryView":1261
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- * cdef int _err(object error, char *msg) except -1 with gil:             # <<<<<<<<<<<<<<
- *     if msg != NULL:
- *         raise error(msg.decode('ascii'))
+ * cdef int _err(PyObject *error, str msg) except -1 with gil:             # <<<<<<<<<<<<<<
+ *     raise <object>error, msg
+ * 
  */
 
-static int __pyx_memoryview_err(PyObject *__pyx_v_error, char *__pyx_v_msg) {
+static int __pyx_memoryview_err(PyObject *__pyx_v_error, PyObject *__pyx_v_msg) {
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- *         raise error
+ * cdef int _err(PyObject *error, str msg) except -1 with gil:
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-    /* "View.MemoryView":1262
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+ * cdef int _err(PyObject *error, str msg) except -1 with gil:             # <<<<<<<<<<<<<<
+ *     raise <object>error, msg
+ * 
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-  /* "View.MemoryView":1265
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- *     else:
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+ * @cname('__pyx_memoryview_err_no_memory')
+ * cdef int _err_no_memory() except -1 with gil:             # <<<<<<<<<<<<<<
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-  /*else*/ {
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-    __PYX_ERR(1, 1265, __pyx_L1_error)
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+
+static int __pyx_memoryview_err_no_memory(void) {
+  int __pyx_r;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
+  #ifdef WITH_THREAD
+  PyGILState_STATE __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
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   /* "View.MemoryView":1261
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+ *     raise MemoryError             # <<<<<<<<<<<<<<
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+ * 
+ */
+  PyErr_NoMemory(); __PYX_ERR(1, 1261, __pyx_L1_error)
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  * 
- * @cname('__pyx_memoryview_err')
- * cdef int _err(object error, char *msg) except -1 with gil:             # <<<<<<<<<<<<<<
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   /* function exit code */
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-  __Pyx_XDECREF(__pyx_t_5);
-  __Pyx_AddTraceback("View.MemoryView._err", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("View.MemoryView._err_no_memory", __pyx_clineno, __pyx_lineno, __pyx_filename);
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-  __Pyx_XDECREF(__pyx_v_error);
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-/* "View.MemoryView":1268
+/* "View.MemoryView":1265
  * 
  * @cname('__pyx_memoryview_copy_contents')
  * cdef int memoryview_copy_contents(__Pyx_memviewslice src,             # <<<<<<<<<<<<<<
@@ -14425,12 +15845,14 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
   int __pyx_t_5;
   int __pyx_t_6;
   void *__pyx_t_7;
-  int __pyx_t_8;
   int __pyx_lineno = 0;
   const char *__pyx_filename = NULL;
   int __pyx_clineno = 0;
+  #ifdef WITH_THREAD
+  PyGILState_STATE __pyx_gilstate_save;
+  #endif
 
-  /* "View.MemoryView":1276
+  /* "View.MemoryView":1273
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@@ -14439,7 +15861,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   __pyx_v_tmpdata = NULL;
 
-  /* "View.MemoryView":1277
+  /* "View.MemoryView":1274
  *     """
  *     cdef void *tmpdata = NULL
  *     cdef size_t itemsize = src.memview.view.itemsize             # <<<<<<<<<<<<<<
@@ -14449,7 +15871,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
   __pyx_t_1 = __pyx_v_src.memview->view.itemsize;
   __pyx_v_itemsize = __pyx_t_1;
 
-  /* "View.MemoryView":1279
+  /* "View.MemoryView":1276
  *     cdef size_t itemsize = src.memview.view.itemsize
  *     cdef int i
  *     cdef char order = get_best_order(&src, src_ndim)             # <<<<<<<<<<<<<<
@@ -14458,7 +15880,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   __pyx_v_order = __pyx_get_best_slice_order((&__pyx_v_src), __pyx_v_src_ndim);
 
-  /* "View.MemoryView":1280
+  /* "View.MemoryView":1277
  *     cdef int i
  *     cdef char order = get_best_order(&src, src_ndim)
  *     cdef bint broadcasting = False             # <<<<<<<<<<<<<<
@@ -14467,7 +15889,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   __pyx_v_broadcasting = 0;
 
-  /* "View.MemoryView":1281
+  /* "View.MemoryView":1278
  *     cdef char order = get_best_order(&src, src_ndim)
  *     cdef bint broadcasting = False
  *     cdef bint direct_copy = False             # <<<<<<<<<<<<<<
@@ -14476,17 +15898,17 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   __pyx_v_direct_copy = 0;
 
-  /* "View.MemoryView":1284
+  /* "View.MemoryView":1281
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  * 
  *     if src_ndim < dst_ndim:             # <<<<<<<<<<<<<<
  *         broadcast_leading(&src, src_ndim, dst_ndim)
  *     elif dst_ndim < src_ndim:
  */
-  __pyx_t_2 = ((__pyx_v_src_ndim < __pyx_v_dst_ndim) != 0);
+  __pyx_t_2 = (__pyx_v_src_ndim < __pyx_v_dst_ndim);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":1285
+    /* "View.MemoryView":1282
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  *     if src_ndim < dst_ndim:
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@@ -14495,7 +15917,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
     __pyx_memoryview_broadcast_leading((&__pyx_v_src), __pyx_v_src_ndim, __pyx_v_dst_ndim);
 
-    /* "View.MemoryView":1284
+    /* "View.MemoryView":1281
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@@ -14505,17 +15927,17 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
     goto __pyx_L3;
   }
 
-  /* "View.MemoryView":1286
+  /* "View.MemoryView":1283
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  *     elif dst_ndim < src_ndim:             # <<<<<<<<<<<<<<
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  * 
  */
-  __pyx_t_2 = ((__pyx_v_dst_ndim < __pyx_v_src_ndim) != 0);
+  __pyx_t_2 = (__pyx_v_dst_ndim < __pyx_v_src_ndim);
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-    /* "View.MemoryView":1287
+    /* "View.MemoryView":1284
  *         broadcast_leading(&src, src_ndim, dst_ndim)
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@@ -14524,7 +15946,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
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     __pyx_memoryview_broadcast_leading((&__pyx_v_dst), __pyx_v_dst_ndim, __pyx_v_src_ndim);
 
-    /* "View.MemoryView":1286
+    /* "View.MemoryView":1283
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  *     elif dst_ndim < src_ndim:             # <<<<<<<<<<<<<<
@@ -14534,7 +15956,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
   }
   __pyx_L3:;
 
-  /* "View.MemoryView":1289
+  /* "View.MemoryView":1286
  *         broadcast_leading(&dst, dst_ndim, src_ndim)
  * 
  *     cdef int ndim = max(src_ndim, dst_ndim)             # <<<<<<<<<<<<<<
@@ -14543,14 +15965,15 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   __pyx_t_3 = __pyx_v_dst_ndim;
   __pyx_t_4 = __pyx_v_src_ndim;
-  if (((__pyx_t_3 > __pyx_t_4) != 0)) {
+  __pyx_t_2 = (__pyx_t_3 > __pyx_t_4);
+  if (__pyx_t_2) {
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   } else {
     __pyx_t_5 = __pyx_t_4;
   }
   __pyx_v_ndim = __pyx_t_5;
 
-  /* "View.MemoryView":1291
+  /* "View.MemoryView":1288
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  *     for i in range(ndim):             # <<<<<<<<<<<<<<
@@ -14562,27 +15985,27 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
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     __pyx_v_i = __pyx_t_4;
 
-    /* "View.MemoryView":1292
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  *     for i in range(ndim):
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  *             if src.shape[i] == 1:
  *                 broadcasting = True
  */
-    __pyx_t_2 = (((__pyx_v_src.shape[__pyx_v_i]) != (__pyx_v_dst.shape[__pyx_v_i])) != 0);
+    __pyx_t_2 = ((__pyx_v_src.shape[__pyx_v_i]) != (__pyx_v_dst.shape[__pyx_v_i]));
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":1293
+      /* "View.MemoryView":1290
  *     for i in range(ndim):
  *         if src.shape[i] != dst.shape[i]:
  *             if src.shape[i] == 1:             # <<<<<<<<<<<<<<
  *                 broadcasting = True
  *                 src.strides[i] = 0
  */
-      __pyx_t_2 = (((__pyx_v_src.shape[__pyx_v_i]) == 1) != 0);
+      __pyx_t_2 = ((__pyx_v_src.shape[__pyx_v_i]) == 1);
       if (__pyx_t_2) {
 
-        /* "View.MemoryView":1294
+        /* "View.MemoryView":1291
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@@ -14591,7 +16014,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
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         __pyx_v_broadcasting = 1;
 
-        /* "View.MemoryView":1295
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  *                 broadcasting = True
  *                 src.strides[i] = 0             # <<<<<<<<<<<<<<
@@ -14600,7 +16023,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
         (__pyx_v_src.strides[__pyx_v_i]) = 0;
 
-        /* "View.MemoryView":1293
+        /* "View.MemoryView":1290
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@@ -14610,7 +16033,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
         goto __pyx_L7;
       }
 
-      /* "View.MemoryView":1297
+      /* "View.MemoryView":1294
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  *             else:
  *                 _err_extents(i, dst.shape[i], src.shape[i])             # <<<<<<<<<<<<<<
@@ -14618,11 +16041,11 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  *         if src.suboffsets[i] >= 0:
  */
       /*else*/ {
-        __pyx_t_6 = __pyx_memoryview_err_extents(__pyx_v_i, (__pyx_v_dst.shape[__pyx_v_i]), (__pyx_v_src.shape[__pyx_v_i])); if (unlikely(__pyx_t_6 == ((int)-1))) __PYX_ERR(1, 1297, __pyx_L1_error)
+        __pyx_t_6 = __pyx_memoryview_err_extents(__pyx_v_i, (__pyx_v_dst.shape[__pyx_v_i]), (__pyx_v_src.shape[__pyx_v_i])); if (unlikely(__pyx_t_6 == ((int)-1))) __PYX_ERR(1, 1294, __pyx_L1_error)
       }
       __pyx_L7:;
 
-      /* "View.MemoryView":1292
+      /* "View.MemoryView":1289
  * 
  *     for i in range(ndim):
  *         if src.shape[i] != dst.shape[i]:             # <<<<<<<<<<<<<<
@@ -14631,56 +16054,56 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
     }
 
-    /* "View.MemoryView":1299
+    /* "View.MemoryView":1296
  *                 _err_extents(i, dst.shape[i], src.shape[i])
  * 
  *         if src.suboffsets[i] >= 0:             # <<<<<<<<<<<<<<
- *             _err_dim(ValueError, "Dimension %d is not direct", i)
+ *             _err_dim(PyExc_ValueError, "Dimension %d is not direct", i)
  * 
  */
-    __pyx_t_2 = (((__pyx_v_src.suboffsets[__pyx_v_i]) >= 0) != 0);
+    __pyx_t_2 = ((__pyx_v_src.suboffsets[__pyx_v_i]) >= 0);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":1300
+      /* "View.MemoryView":1297
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  *         if src.suboffsets[i] >= 0:
- *             _err_dim(ValueError, "Dimension %d is not direct", i)             # <<<<<<<<<<<<<<
+ *             _err_dim(PyExc_ValueError, "Dimension %d is not direct", i)             # <<<<<<<<<<<<<<
  * 
  *     if slices_overlap(&src, &dst, ndim, itemsize):
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-      __pyx_t_6 = __pyx_memoryview_err_dim(__pyx_builtin_ValueError, ((char *)"Dimension %d is not direct"), __pyx_v_i); if (unlikely(__pyx_t_6 == ((int)-1))) __PYX_ERR(1, 1300, __pyx_L1_error)
+      __pyx_t_6 = __pyx_memoryview_err_dim(PyExc_ValueError, __pyx_kp_s_Dimension_d_is_not_direct, __pyx_v_i); if (unlikely(__pyx_t_6 == ((int)-1))) __PYX_ERR(1, 1297, __pyx_L1_error)
 
-      /* "View.MemoryView":1299
+      /* "View.MemoryView":1296
  *                 _err_extents(i, dst.shape[i], src.shape[i])
  * 
  *         if src.suboffsets[i] >= 0:             # <<<<<<<<<<<<<<
- *             _err_dim(ValueError, "Dimension %d is not direct", i)
+ *             _err_dim(PyExc_ValueError, "Dimension %d is not direct", i)
  * 
  */
     }
   }
 
-  /* "View.MemoryView":1302
- *             _err_dim(ValueError, "Dimension %d is not direct", i)
+  /* "View.MemoryView":1299
+ *             _err_dim(PyExc_ValueError, "Dimension %d is not direct", i)
  * 
  *     if slices_overlap(&src, &dst, ndim, itemsize):             # <<<<<<<<<<<<<<
  * 
  *         if not slice_is_contig(src, order, ndim):
  */
-  __pyx_t_2 = (__pyx_slices_overlap((&__pyx_v_src), (&__pyx_v_dst), __pyx_v_ndim, __pyx_v_itemsize) != 0);
+  __pyx_t_2 = __pyx_slices_overlap((&__pyx_v_src), (&__pyx_v_dst), __pyx_v_ndim, __pyx_v_itemsize);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":1304
+    /* "View.MemoryView":1301
  *     if slices_overlap(&src, &dst, ndim, itemsize):
  * 
  *         if not slice_is_contig(src, order, ndim):             # <<<<<<<<<<<<<<
  *             order = get_best_order(&dst, ndim)
  * 
  */
-    __pyx_t_2 = ((!(__pyx_memviewslice_is_contig(__pyx_v_src, __pyx_v_order, __pyx_v_ndim) != 0)) != 0);
+    __pyx_t_2 = (!__pyx_memviewslice_is_contig(__pyx_v_src, __pyx_v_order, __pyx_v_ndim));
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":1305
+      /* "View.MemoryView":1302
  * 
  *         if not slice_is_contig(src, order, ndim):
  *             order = get_best_order(&dst, ndim)             # <<<<<<<<<<<<<<
@@ -14689,7 +16112,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
       __pyx_v_order = __pyx_get_best_slice_order((&__pyx_v_dst), __pyx_v_ndim);
 
-      /* "View.MemoryView":1304
+      /* "View.MemoryView":1301
  *     if slices_overlap(&src, &dst, ndim, itemsize):
  * 
  *         if not slice_is_contig(src, order, ndim):             # <<<<<<<<<<<<<<
@@ -14698,17 +16121,17 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
     }
 
-    /* "View.MemoryView":1307
+    /* "View.MemoryView":1304
  *             order = get_best_order(&dst, ndim)
  * 
  *         tmpdata = copy_data_to_temp(&src, &tmp, order, ndim)             # <<<<<<<<<<<<<<
  *         src = tmp
  * 
  */
-    __pyx_t_7 = __pyx_memoryview_copy_data_to_temp((&__pyx_v_src), (&__pyx_v_tmp), __pyx_v_order, __pyx_v_ndim); if (unlikely(__pyx_t_7 == ((void *)NULL))) __PYX_ERR(1, 1307, __pyx_L1_error)
+    __pyx_t_7 = __pyx_memoryview_copy_data_to_temp((&__pyx_v_src), (&__pyx_v_tmp), __pyx_v_order, __pyx_v_ndim); if (unlikely(__pyx_t_7 == ((void *)NULL))) __PYX_ERR(1, 1304, __pyx_L1_error)
     __pyx_v_tmpdata = __pyx_t_7;
 
-    /* "View.MemoryView":1308
+    /* "View.MemoryView":1305
  * 
  *         tmpdata = copy_data_to_temp(&src, &tmp, order, ndim)
  *         src = tmp             # <<<<<<<<<<<<<<
@@ -14717,8 +16140,8 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
     __pyx_v_src = __pyx_v_tmp;
 
-    /* "View.MemoryView":1302
- *             _err_dim(ValueError, "Dimension %d is not direct", i)
+    /* "View.MemoryView":1299
+ *             _err_dim(PyExc_ValueError, "Dimension %d is not direct", i)
  * 
  *     if slices_overlap(&src, &dst, ndim, itemsize):             # <<<<<<<<<<<<<<
  * 
@@ -14726,27 +16149,27 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   }
 
-  /* "View.MemoryView":1310
+  /* "View.MemoryView":1307
  *         src = tmp
  * 
  *     if not broadcasting:             # <<<<<<<<<<<<<<
  * 
  * 
  */
-  __pyx_t_2 = ((!(__pyx_v_broadcasting != 0)) != 0);
+  __pyx_t_2 = (!__pyx_v_broadcasting);
   if (__pyx_t_2) {
 
-    /* "View.MemoryView":1313
+    /* "View.MemoryView":1310
  * 
  * 
  *         if slice_is_contig(src, 'C', ndim):             # <<<<<<<<<<<<<<
  *             direct_copy = slice_is_contig(dst, 'C', ndim)
  *         elif slice_is_contig(src, 'F', ndim):
  */
-    __pyx_t_2 = (__pyx_memviewslice_is_contig(__pyx_v_src, 'C', __pyx_v_ndim) != 0);
+    __pyx_t_2 = __pyx_memviewslice_is_contig(__pyx_v_src, 'C', __pyx_v_ndim);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":1314
+      /* "View.MemoryView":1311
  * 
  *         if slice_is_contig(src, 'C', ndim):
  *             direct_copy = slice_is_contig(dst, 'C', ndim)             # <<<<<<<<<<<<<<
@@ -14755,7 +16178,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
       __pyx_v_direct_copy = __pyx_memviewslice_is_contig(__pyx_v_dst, 'C', __pyx_v_ndim);
 
-      /* "View.MemoryView":1313
+      /* "View.MemoryView":1310
  * 
  * 
  *         if slice_is_contig(src, 'C', ndim):             # <<<<<<<<<<<<<<
@@ -14765,17 +16188,17 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
       goto __pyx_L12;
     }
 
-    /* "View.MemoryView":1315
+    /* "View.MemoryView":1312
  *         if slice_is_contig(src, 'C', ndim):
  *             direct_copy = slice_is_contig(dst, 'C', ndim)
  *         elif slice_is_contig(src, 'F', ndim):             # <<<<<<<<<<<<<<
  *             direct_copy = slice_is_contig(dst, 'F', ndim)
  * 
  */
-    __pyx_t_2 = (__pyx_memviewslice_is_contig(__pyx_v_src, 'F', __pyx_v_ndim) != 0);
+    __pyx_t_2 = __pyx_memviewslice_is_contig(__pyx_v_src, 'F', __pyx_v_ndim);
     if (__pyx_t_2) {
 
-      /* "View.MemoryView":1316
+      /* "View.MemoryView":1313
  *             direct_copy = slice_is_contig(dst, 'C', ndim)
  *         elif slice_is_contig(src, 'F', ndim):
  *             direct_copy = slice_is_contig(dst, 'F', ndim)             # <<<<<<<<<<<<<<
@@ -14784,7 +16207,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
       __pyx_v_direct_copy = __pyx_memviewslice_is_contig(__pyx_v_dst, 'F', __pyx_v_ndim);
 
-      /* "View.MemoryView":1315
+      /* "View.MemoryView":1312
  *         if slice_is_contig(src, 'C', ndim):
  *             direct_copy = slice_is_contig(dst, 'C', ndim)
  *         elif slice_is_contig(src, 'F', ndim):             # <<<<<<<<<<<<<<
@@ -14794,54 +16217,53 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
     }
     __pyx_L12:;
 
-    /* "View.MemoryView":1318
+    /* "View.MemoryView":1315
  *             direct_copy = slice_is_contig(dst, 'F', ndim)
  * 
  *         if direct_copy:             # <<<<<<<<<<<<<<
  * 
- *             refcount_copying(&dst, dtype_is_object, ndim, False)
+ *             refcount_copying(&dst, dtype_is_object, ndim, inc=False)
  */
-    __pyx_t_2 = (__pyx_v_direct_copy != 0);
-    if (__pyx_t_2) {
+    if (__pyx_v_direct_copy) {
 
-      /* "View.MemoryView":1320
+      /* "View.MemoryView":1317
  *         if direct_copy:
  * 
- *             refcount_copying(&dst, dtype_is_object, ndim, False)             # <<<<<<<<<<<<<<
+ *             refcount_copying(&dst, dtype_is_object, ndim, inc=False)             # <<<<<<<<<<<<<<
  *             memcpy(dst.data, src.data, slice_get_size(&src, ndim))
- *             refcount_copying(&dst, dtype_is_object, ndim, True)
+ *             refcount_copying(&dst, dtype_is_object, ndim, inc=True)
  */
       __pyx_memoryview_refcount_copying((&__pyx_v_dst), __pyx_v_dtype_is_object, __pyx_v_ndim, 0);
 
-      /* "View.MemoryView":1321
+      /* "View.MemoryView":1318
  * 
- *             refcount_copying(&dst, dtype_is_object, ndim, False)
+ *             refcount_copying(&dst, dtype_is_object, ndim, inc=False)
  *             memcpy(dst.data, src.data, slice_get_size(&src, ndim))             # <<<<<<<<<<<<<<
- *             refcount_copying(&dst, dtype_is_object, ndim, True)
+ *             refcount_copying(&dst, dtype_is_object, ndim, inc=True)
  *             free(tmpdata)
  */
       (void)(memcpy(__pyx_v_dst.data, __pyx_v_src.data, __pyx_memoryview_slice_get_size((&__pyx_v_src), __pyx_v_ndim)));
 
-      /* "View.MemoryView":1322
- *             refcount_copying(&dst, dtype_is_object, ndim, False)
+      /* "View.MemoryView":1319
+ *             refcount_copying(&dst, dtype_is_object, ndim, inc=False)
  *             memcpy(dst.data, src.data, slice_get_size(&src, ndim))
- *             refcount_copying(&dst, dtype_is_object, ndim, True)             # <<<<<<<<<<<<<<
+ *             refcount_copying(&dst, dtype_is_object, ndim, inc=True)             # <<<<<<<<<<<<<<
  *             free(tmpdata)
  *             return 0
  */
       __pyx_memoryview_refcount_copying((&__pyx_v_dst), __pyx_v_dtype_is_object, __pyx_v_ndim, 1);
 
-      /* "View.MemoryView":1323
+      /* "View.MemoryView":1320
  *             memcpy(dst.data, src.data, slice_get_size(&src, ndim))
- *             refcount_copying(&dst, dtype_is_object, ndim, True)
+ *             refcount_copying(&dst, dtype_is_object, ndim, inc=True)
  *             free(tmpdata)             # <<<<<<<<<<<<<<
  *             return 0
  * 
  */
       free(__pyx_v_tmpdata);
 
-      /* "View.MemoryView":1324
- *             refcount_copying(&dst, dtype_is_object, ndim, True)
+      /* "View.MemoryView":1321
+ *             refcount_copying(&dst, dtype_is_object, ndim, inc=True)
  *             free(tmpdata)
  *             return 0             # <<<<<<<<<<<<<<
  * 
@@ -14850,16 +16272,16 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
       __pyx_r = 0;
       goto __pyx_L0;
 
-      /* "View.MemoryView":1318
+      /* "View.MemoryView":1315
  *             direct_copy = slice_is_contig(dst, 'F', ndim)
  * 
  *         if direct_copy:             # <<<<<<<<<<<<<<
  * 
- *             refcount_copying(&dst, dtype_is_object, ndim, False)
+ *             refcount_copying(&dst, dtype_is_object, ndim, inc=False)
  */
     }
 
-    /* "View.MemoryView":1310
+    /* "View.MemoryView":1307
  *         src = tmp
  * 
  *     if not broadcasting:             # <<<<<<<<<<<<<<
@@ -14868,7 +16290,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   }
 
-  /* "View.MemoryView":1326
+  /* "View.MemoryView":1323
  *             return 0
  * 
  *     if order == 'F' == get_best_order(&dst, ndim):             # <<<<<<<<<<<<<<
@@ -14879,28 +16301,27 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
   if (__pyx_t_2) {
     __pyx_t_2 = ('F' == __pyx_get_best_slice_order((&__pyx_v_dst), __pyx_v_ndim));
   }
-  __pyx_t_8 = (__pyx_t_2 != 0);
-  if (__pyx_t_8) {
+  if (__pyx_t_2) {
 
-    /* "View.MemoryView":1329
+    /* "View.MemoryView":1326
  * 
  * 
  *         transpose_memslice(&src)             # <<<<<<<<<<<<<<
  *         transpose_memslice(&dst)
  * 
  */
-    __pyx_t_5 = __pyx_memslice_transpose((&__pyx_v_src)); if (unlikely(__pyx_t_5 == ((int)0))) __PYX_ERR(1, 1329, __pyx_L1_error)
+    __pyx_t_5 = __pyx_memslice_transpose((&__pyx_v_src)); if (unlikely(__pyx_t_5 == ((int)-1))) __PYX_ERR(1, 1326, __pyx_L1_error)
 
-    /* "View.MemoryView":1330
+    /* "View.MemoryView":1327
  * 
  *         transpose_memslice(&src)
  *         transpose_memslice(&dst)             # <<<<<<<<<<<<<<
  * 
- *     refcount_copying(&dst, dtype_is_object, ndim, False)
+ *     refcount_copying(&dst, dtype_is_object, ndim, inc=False)
  */
-    __pyx_t_5 = __pyx_memslice_transpose((&__pyx_v_dst)); if (unlikely(__pyx_t_5 == ((int)0))) __PYX_ERR(1, 1330, __pyx_L1_error)
+    __pyx_t_5 = __pyx_memslice_transpose((&__pyx_v_dst)); if (unlikely(__pyx_t_5 == ((int)-1))) __PYX_ERR(1, 1327, __pyx_L1_error)
 
-    /* "View.MemoryView":1326
+    /* "View.MemoryView":1323
  *             return 0
  * 
  *     if order == 'F' == get_best_order(&dst, ndim):             # <<<<<<<<<<<<<<
@@ -14909,35 +16330,35 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   }
 
-  /* "View.MemoryView":1332
+  /* "View.MemoryView":1329
  *         transpose_memslice(&dst)
  * 
- *     refcount_copying(&dst, dtype_is_object, ndim, False)             # <<<<<<<<<<<<<<
+ *     refcount_copying(&dst, dtype_is_object, ndim, inc=False)             # <<<<<<<<<<<<<<
  *     copy_strided_to_strided(&src, &dst, ndim, itemsize)
- *     refcount_copying(&dst, dtype_is_object, ndim, True)
+ *     refcount_copying(&dst, dtype_is_object, ndim, inc=True)
  */
   __pyx_memoryview_refcount_copying((&__pyx_v_dst), __pyx_v_dtype_is_object, __pyx_v_ndim, 0);
 
-  /* "View.MemoryView":1333
+  /* "View.MemoryView":1330
  * 
- *     refcount_copying(&dst, dtype_is_object, ndim, False)
+ *     refcount_copying(&dst, dtype_is_object, ndim, inc=False)
  *     copy_strided_to_strided(&src, &dst, ndim, itemsize)             # <<<<<<<<<<<<<<
- *     refcount_copying(&dst, dtype_is_object, ndim, True)
+ *     refcount_copying(&dst, dtype_is_object, ndim, inc=True)
  * 
  */
   copy_strided_to_strided((&__pyx_v_src), (&__pyx_v_dst), __pyx_v_ndim, __pyx_v_itemsize);
 
-  /* "View.MemoryView":1334
- *     refcount_copying(&dst, dtype_is_object, ndim, False)
+  /* "View.MemoryView":1331
+ *     refcount_copying(&dst, dtype_is_object, ndim, inc=False)
  *     copy_strided_to_strided(&src, &dst, ndim, itemsize)
- *     refcount_copying(&dst, dtype_is_object, ndim, True)             # <<<<<<<<<<<<<<
+ *     refcount_copying(&dst, dtype_is_object, ndim, inc=True)             # <<<<<<<<<<<<<<
  * 
  *     free(tmpdata)
  */
   __pyx_memoryview_refcount_copying((&__pyx_v_dst), __pyx_v_dtype_is_object, __pyx_v_ndim, 1);
 
-  /* "View.MemoryView":1336
- *     refcount_copying(&dst, dtype_is_object, ndim, True)
+  /* "View.MemoryView":1333
+ *     refcount_copying(&dst, dtype_is_object, ndim, inc=True)
  * 
  *     free(tmpdata)             # <<<<<<<<<<<<<<
  *     return 0
@@ -14945,7 +16366,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
  */
   free(__pyx_v_tmpdata);
 
-  /* "View.MemoryView":1337
+  /* "View.MemoryView":1334
  * 
  *     free(tmpdata)
  *     return 0             # <<<<<<<<<<<<<<
@@ -14955,7 +16376,7 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
   __pyx_r = 0;
   goto __pyx_L0;
 
-  /* "View.MemoryView":1268
+  /* "View.MemoryView":1265
  * 
  * @cname('__pyx_memoryview_copy_contents')
  * cdef int memoryview_copy_contents(__Pyx_memviewslice src,             # <<<<<<<<<<<<<<
@@ -14965,26 +16386,24 @@ static int __pyx_memoryview_copy_contents(__Pyx_memviewslice __pyx_v_src, __Pyx_
 
   /* function exit code */
   __pyx_L1_error:;
-  {
-    #ifdef WITH_THREAD
-    PyGILState_STATE __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
-    #endif
-    __Pyx_AddTraceback("View.MemoryView.memoryview_copy_contents", __pyx_clineno, __pyx_lineno, __pyx_filename);
-    #ifdef WITH_THREAD
-    __Pyx_PyGILState_Release(__pyx_gilstate_save);
-    #endif
-  }
+  #ifdef WITH_THREAD
+  __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
+  #endif
+  __Pyx_AddTraceback("View.MemoryView.memoryview_copy_contents", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = -1;
+  #ifdef WITH_THREAD
+  __Pyx_PyGILState_Release(__pyx_gilstate_save);
+  #endif
   __pyx_L0:;
   return __pyx_r;
 }
 
-/* "View.MemoryView":1340
+/* "View.MemoryView":1337
  * 
  * @cname('__pyx_memoryview_broadcast_leading')
  * cdef void broadcast_leading(__Pyx_memviewslice *mslice,             # <<<<<<<<<<<<<<
  *                             int ndim,
- *                             int ndim_other) nogil:
+ *                             int ndim_other) noexcept nogil:
  */
 
 static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslice, int __pyx_v_ndim, int __pyx_v_ndim_other) {
@@ -14994,8 +16413,8 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
   int __pyx_t_2;
   int __pyx_t_3;
 
-  /* "View.MemoryView":1344
- *                             int ndim_other) nogil:
+  /* "View.MemoryView":1341
+ *                             int ndim_other) noexcept nogil:
  *     cdef int i
  *     cdef int offset = ndim_other - ndim             # <<<<<<<<<<<<<<
  * 
@@ -15003,7 +16422,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
  */
   __pyx_v_offset = (__pyx_v_ndim_other - __pyx_v_ndim);
 
-  /* "View.MemoryView":1346
+  /* "View.MemoryView":1343
  *     cdef int offset = ndim_other - ndim
  * 
  *     for i in range(ndim - 1, -1, -1):             # <<<<<<<<<<<<<<
@@ -15013,7 +16432,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
   for (__pyx_t_1 = (__pyx_v_ndim - 1); __pyx_t_1 > -1; __pyx_t_1-=1) {
     __pyx_v_i = __pyx_t_1;
 
-    /* "View.MemoryView":1347
+    /* "View.MemoryView":1344
  * 
  *     for i in range(ndim - 1, -1, -1):
  *         mslice.shape[i + offset] = mslice.shape[i]             # <<<<<<<<<<<<<<
@@ -15022,7 +16441,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
  */
     (__pyx_v_mslice->shape[(__pyx_v_i + __pyx_v_offset)]) = (__pyx_v_mslice->shape[__pyx_v_i]);
 
-    /* "View.MemoryView":1348
+    /* "View.MemoryView":1345
  *     for i in range(ndim - 1, -1, -1):
  *         mslice.shape[i + offset] = mslice.shape[i]
  *         mslice.strides[i + offset] = mslice.strides[i]             # <<<<<<<<<<<<<<
@@ -15031,7 +16450,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
  */
     (__pyx_v_mslice->strides[(__pyx_v_i + __pyx_v_offset)]) = (__pyx_v_mslice->strides[__pyx_v_i]);
 
-    /* "View.MemoryView":1349
+    /* "View.MemoryView":1346
  *         mslice.shape[i + offset] = mslice.shape[i]
  *         mslice.strides[i + offset] = mslice.strides[i]
  *         mslice.suboffsets[i + offset] = mslice.suboffsets[i]             # <<<<<<<<<<<<<<
@@ -15041,7 +16460,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
     (__pyx_v_mslice->suboffsets[(__pyx_v_i + __pyx_v_offset)]) = (__pyx_v_mslice->suboffsets[__pyx_v_i]);
   }
 
-  /* "View.MemoryView":1351
+  /* "View.MemoryView":1348
  *         mslice.suboffsets[i + offset] = mslice.suboffsets[i]
  * 
  *     for i in range(offset):             # <<<<<<<<<<<<<<
@@ -15053,7 +16472,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
   for (__pyx_t_3 = 0; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
     __pyx_v_i = __pyx_t_3;
 
-    /* "View.MemoryView":1352
+    /* "View.MemoryView":1349
  * 
  *     for i in range(offset):
  *         mslice.shape[i] = 1             # <<<<<<<<<<<<<<
@@ -15062,7 +16481,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
  */
     (__pyx_v_mslice->shape[__pyx_v_i]) = 1;
 
-    /* "View.MemoryView":1353
+    /* "View.MemoryView":1350
  *     for i in range(offset):
  *         mslice.shape[i] = 1
  *         mslice.strides[i] = mslice.strides[0]             # <<<<<<<<<<<<<<
@@ -15071,7 +16490,7 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
  */
     (__pyx_v_mslice->strides[__pyx_v_i]) = (__pyx_v_mslice->strides[0]);
 
-    /* "View.MemoryView":1354
+    /* "View.MemoryView":1351
  *         mslice.shape[i] = 1
  *         mslice.strides[i] = mslice.strides[0]
  *         mslice.suboffsets[i] = -1             # <<<<<<<<<<<<<<
@@ -15081,125 +16500,128 @@ static void __pyx_memoryview_broadcast_leading(__Pyx_memviewslice *__pyx_v_mslic
     (__pyx_v_mslice->suboffsets[__pyx_v_i]) = -1L;
   }
 
-  /* "View.MemoryView":1340
+  /* "View.MemoryView":1337
  * 
  * @cname('__pyx_memoryview_broadcast_leading')
  * cdef void broadcast_leading(__Pyx_memviewslice *mslice,             # <<<<<<<<<<<<<<
  *                             int ndim,
- *                             int ndim_other) nogil:
+ *                             int ndim_other) noexcept nogil:
  */
 
   /* function exit code */
 }
 
-/* "View.MemoryView":1362
+/* "View.MemoryView":1359
  * 
  * @cname('__pyx_memoryview_refcount_copying')
- * cdef void refcount_copying(__Pyx_memviewslice *dst, bint dtype_is_object,             # <<<<<<<<<<<<<<
- *                            int ndim, bint inc) nogil:
+ * cdef void refcount_copying(__Pyx_memviewslice *dst, bint dtype_is_object, int ndim, bint inc) noexcept nogil:             # <<<<<<<<<<<<<<
  * 
+ *     if dtype_is_object:
  */
 
 static void __pyx_memoryview_refcount_copying(__Pyx_memviewslice *__pyx_v_dst, int __pyx_v_dtype_is_object, int __pyx_v_ndim, int __pyx_v_inc) {
-  int __pyx_t_1;
 
-  /* "View.MemoryView":1366
- * 
+  /* "View.MemoryView":1361
+ * cdef void refcount_copying(__Pyx_memviewslice *dst, bint dtype_is_object, int ndim, bint inc) noexcept nogil:
  * 
  *     if dtype_is_object:             # <<<<<<<<<<<<<<
- *         refcount_objects_in_slice_with_gil(dst.data, dst.shape,
- *                                            dst.strides, ndim, inc)
+ *         refcount_objects_in_slice_with_gil(dst.data, dst.shape, dst.strides, ndim, inc)
+ * 
  */
-  __pyx_t_1 = (__pyx_v_dtype_is_object != 0);
-  if (__pyx_t_1) {
+  if (__pyx_v_dtype_is_object) {
 
-    /* "View.MemoryView":1367
+    /* "View.MemoryView":1362
  * 
  *     if dtype_is_object:
- *         refcount_objects_in_slice_with_gil(dst.data, dst.shape,             # <<<<<<<<<<<<<<
- *                                            dst.strides, ndim, inc)
+ *         refcount_objects_in_slice_with_gil(dst.data, dst.shape, dst.strides, ndim, inc)             # <<<<<<<<<<<<<<
  * 
+ * @cname('__pyx_memoryview_refcount_objects_in_slice_with_gil')
  */
     __pyx_memoryview_refcount_objects_in_slice_with_gil(__pyx_v_dst->data, __pyx_v_dst->shape, __pyx_v_dst->strides, __pyx_v_ndim, __pyx_v_inc);
 
-    /* "View.MemoryView":1366
- * 
+    /* "View.MemoryView":1361
+ * cdef void refcount_copying(__Pyx_memviewslice *dst, bint dtype_is_object, int ndim, bint inc) noexcept nogil:
  * 
  *     if dtype_is_object:             # <<<<<<<<<<<<<<
- *         refcount_objects_in_slice_with_gil(dst.data, dst.shape,
- *                                            dst.strides, ndim, inc)
+ *         refcount_objects_in_slice_with_gil(dst.data, dst.shape, dst.strides, ndim, inc)
+ * 
  */
   }
 
-  /* "View.MemoryView":1362
+  /* "View.MemoryView":1359
  * 
  * @cname('__pyx_memoryview_refcount_copying')
- * cdef void refcount_copying(__Pyx_memviewslice *dst, bint dtype_is_object,             # <<<<<<<<<<<<<<
- *                            int ndim, bint inc) nogil:
+ * cdef void refcount_copying(__Pyx_memviewslice *dst, bint dtype_is_object, int ndim, bint inc) noexcept nogil:             # <<<<<<<<<<<<<<
  * 
+ *     if dtype_is_object:
  */
 
   /* function exit code */
 }
 
-/* "View.MemoryView":1371
+/* "View.MemoryView":1365
  * 
  * @cname('__pyx_memoryview_refcount_objects_in_slice_with_gil')
  * cdef void refcount_objects_in_slice_with_gil(char *data, Py_ssize_t *shape,             # <<<<<<<<<<<<<<
  *                                              Py_ssize_t *strides, int ndim,
- *                                              bint inc) with gil:
+ *                                              bint inc) noexcept with gil:
  */
 
 static void __pyx_memoryview_refcount_objects_in_slice_with_gil(char *__pyx_v_data, Py_ssize_t *__pyx_v_shape, Py_ssize_t *__pyx_v_strides, int __pyx_v_ndim, int __pyx_v_inc) {
-  __Pyx_RefNannyDeclarations
   #ifdef WITH_THREAD
   PyGILState_STATE __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
   #endif
-  __Pyx_RefNannySetupContext("refcount_objects_in_slice_with_gil", 0);
 
-  /* "View.MemoryView":1374
+  /* "View.MemoryView":1368
  *                                              Py_ssize_t *strides, int ndim,
- *                                              bint inc) with gil:
+ *                                              bint inc) noexcept with gil:
  *     refcount_objects_in_slice(data, shape, strides, ndim, inc)             # <<<<<<<<<<<<<<
  * 
  * @cname('__pyx_memoryview_refcount_objects_in_slice')
  */
   __pyx_memoryview_refcount_objects_in_slice(__pyx_v_data, __pyx_v_shape, __pyx_v_strides, __pyx_v_ndim, __pyx_v_inc);
 
-  /* "View.MemoryView":1371
+  /* "View.MemoryView":1365
  * 
  * @cname('__pyx_memoryview_refcount_objects_in_slice_with_gil')
  * cdef void refcount_objects_in_slice_with_gil(char *data, Py_ssize_t *shape,             # <<<<<<<<<<<<<<
  *                                              Py_ssize_t *strides, int ndim,
- *                                              bint inc) with gil:
+ *                                              bint inc) noexcept with gil:
  */
 
   /* function exit code */
-  __Pyx_RefNannyFinishContext();
   #ifdef WITH_THREAD
   __Pyx_PyGILState_Release(__pyx_gilstate_save);
   #endif
 }
 
-/* "View.MemoryView":1377
+/* "View.MemoryView":1371
  * 
  * @cname('__pyx_memoryview_refcount_objects_in_slice')
  * cdef void refcount_objects_in_slice(char *data, Py_ssize_t *shape,             # <<<<<<<<<<<<<<
- *                                     Py_ssize_t *strides, int ndim, bint inc):
+ *                                     Py_ssize_t *strides, int ndim, bint inc) noexcept:
  *     cdef Py_ssize_t i
  */
 
 static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ssize_t *__pyx_v_shape, Py_ssize_t *__pyx_v_strides, int __pyx_v_ndim, int __pyx_v_inc) {
   CYTHON_UNUSED Py_ssize_t __pyx_v_i;
-  __Pyx_RefNannyDeclarations
+  Py_ssize_t __pyx_v_stride;
   Py_ssize_t __pyx_t_1;
   Py_ssize_t __pyx_t_2;
   Py_ssize_t __pyx_t_3;
   int __pyx_t_4;
-  __Pyx_RefNannySetupContext("refcount_objects_in_slice", 0);
 
-  /* "View.MemoryView":1381
+  /* "View.MemoryView":1374
+ *                                     Py_ssize_t *strides, int ndim, bint inc) noexcept:
  *     cdef Py_ssize_t i
+ *     cdef Py_ssize_t stride = strides[0]             # <<<<<<<<<<<<<<
+ * 
+ *     for i in range(shape[0]):
+ */
+  __pyx_v_stride = (__pyx_v_strides[0]);
+
+  /* "View.MemoryView":1376
+ *     cdef Py_ssize_t stride = strides[0]
  * 
  *     for i in range(shape[0]):             # <<<<<<<<<<<<<<
  *         if ndim == 1:
@@ -15210,27 +16632,26 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
   for (__pyx_t_3 = 0; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
     __pyx_v_i = __pyx_t_3;
 
-    /* "View.MemoryView":1382
+    /* "View.MemoryView":1377
  * 
  *     for i in range(shape[0]):
  *         if ndim == 1:             # <<<<<<<<<<<<<<
  *             if inc:
  *                 Py_INCREF((<PyObject **> data)[0])
  */
-    __pyx_t_4 = ((__pyx_v_ndim == 1) != 0);
+    __pyx_t_4 = (__pyx_v_ndim == 1);
     if (__pyx_t_4) {
 
-      /* "View.MemoryView":1383
+      /* "View.MemoryView":1378
  *     for i in range(shape[0]):
  *         if ndim == 1:
  *             if inc:             # <<<<<<<<<<<<<<
  *                 Py_INCREF((<PyObject **> data)[0])
  *             else:
  */
-      __pyx_t_4 = (__pyx_v_inc != 0);
-      if (__pyx_t_4) {
+      if (__pyx_v_inc) {
 
-        /* "View.MemoryView":1384
+        /* "View.MemoryView":1379
  *         if ndim == 1:
  *             if inc:
  *                 Py_INCREF((<PyObject **> data)[0])             # <<<<<<<<<<<<<<
@@ -15239,7 +16660,7 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
  */
         Py_INCREF((((PyObject **)__pyx_v_data)[0]));
 
-        /* "View.MemoryView":1383
+        /* "View.MemoryView":1378
  *     for i in range(shape[0]):
  *         if ndim == 1:
  *             if inc:             # <<<<<<<<<<<<<<
@@ -15249,19 +16670,19 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
         goto __pyx_L6;
       }
 
-      /* "View.MemoryView":1386
+      /* "View.MemoryView":1381
  *                 Py_INCREF((<PyObject **> data)[0])
  *             else:
  *                 Py_DECREF((<PyObject **> data)[0])             # <<<<<<<<<<<<<<
  *         else:
- *             refcount_objects_in_slice(data, shape + 1, strides + 1,
+ *             refcount_objects_in_slice(data, shape + 1, strides + 1, ndim - 1, inc)
  */
       /*else*/ {
         Py_DECREF((((PyObject **)__pyx_v_data)[0]));
       }
       __pyx_L6:;
 
-      /* "View.MemoryView":1382
+      /* "View.MemoryView":1377
  * 
  *     for i in range(shape[0]):
  *         if ndim == 1:             # <<<<<<<<<<<<<<
@@ -15271,102 +16692,93 @@ static void __pyx_memoryview_refcount_objects_in_slice(char *__pyx_v_data, Py_ss
       goto __pyx_L5;
     }
 
-    /* "View.MemoryView":1388
+    /* "View.MemoryView":1383
  *                 Py_DECREF((<PyObject **> data)[0])
  *         else:
- *             refcount_objects_in_slice(data, shape + 1, strides + 1,             # <<<<<<<<<<<<<<
- *                                       ndim - 1, inc)
+ *             refcount_objects_in_slice(data, shape + 1, strides + 1, ndim - 1, inc)             # <<<<<<<<<<<<<<
  * 
+ *         data += stride
  */
     /*else*/ {
-
-      /* "View.MemoryView":1389
- *         else:
- *             refcount_objects_in_slice(data, shape + 1, strides + 1,
- *                                       ndim - 1, inc)             # <<<<<<<<<<<<<<
- * 
- *         data += strides[0]
- */
       __pyx_memoryview_refcount_objects_in_slice(__pyx_v_data, (__pyx_v_shape + 1), (__pyx_v_strides + 1), (__pyx_v_ndim - 1), __pyx_v_inc);
     }
     __pyx_L5:;
 
-    /* "View.MemoryView":1391
- *                                       ndim - 1, inc)
+    /* "View.MemoryView":1385
+ *             refcount_objects_in_slice(data, shape + 1, strides + 1, ndim - 1, inc)
  * 
- *         data += strides[0]             # <<<<<<<<<<<<<<
+ *         data += stride             # <<<<<<<<<<<<<<
  * 
  * 
  */
-    __pyx_v_data = (__pyx_v_data + (__pyx_v_strides[0]));
+    __pyx_v_data = (__pyx_v_data + __pyx_v_stride);
   }
 
-  /* "View.MemoryView":1377
+  /* "View.MemoryView":1371
  * 
  * @cname('__pyx_memoryview_refcount_objects_in_slice')
  * cdef void refcount_objects_in_slice(char *data, Py_ssize_t *shape,             # <<<<<<<<<<<<<<
- *                                     Py_ssize_t *strides, int ndim, bint inc):
+ *                                     Py_ssize_t *strides, int ndim, bint inc) noexcept:
  *     cdef Py_ssize_t i
  */
 
   /* function exit code */
-  __Pyx_RefNannyFinishContext();
 }
 
-/* "View.MemoryView":1397
+/* "View.MemoryView":1391
  * 
  * @cname('__pyx_memoryview_slice_assign_scalar')
  * cdef void slice_assign_scalar(__Pyx_memviewslice *dst, int ndim,             # <<<<<<<<<<<<<<
  *                               size_t itemsize, void *item,
- *                               bint dtype_is_object) nogil:
+ *                               bint dtype_is_object) noexcept nogil:
  */
 
 static void __pyx_memoryview_slice_assign_scalar(__Pyx_memviewslice *__pyx_v_dst, int __pyx_v_ndim, size_t __pyx_v_itemsize, void *__pyx_v_item, int __pyx_v_dtype_is_object) {
 
-  /* "View.MemoryView":1400
+  /* "View.MemoryView":1394
  *                               size_t itemsize, void *item,
- *                               bint dtype_is_object) nogil:
- *     refcount_copying(dst, dtype_is_object, ndim, False)             # <<<<<<<<<<<<<<
- *     _slice_assign_scalar(dst.data, dst.shape, dst.strides, ndim,
- *                          itemsize, item)
+ *                               bint dtype_is_object) noexcept nogil:
+ *     refcount_copying(dst, dtype_is_object, ndim, inc=False)             # <<<<<<<<<<<<<<
+ *     _slice_assign_scalar(dst.data, dst.shape, dst.strides, ndim, itemsize, item)
+ *     refcount_copying(dst, dtype_is_object, ndim, inc=True)
  */
   __pyx_memoryview_refcount_copying(__pyx_v_dst, __pyx_v_dtype_is_object, __pyx_v_ndim, 0);
 
-  /* "View.MemoryView":1401
- *                               bint dtype_is_object) nogil:
- *     refcount_copying(dst, dtype_is_object, ndim, False)
- *     _slice_assign_scalar(dst.data, dst.shape, dst.strides, ndim,             # <<<<<<<<<<<<<<
- *                          itemsize, item)
- *     refcount_copying(dst, dtype_is_object, ndim, True)
+  /* "View.MemoryView":1395
+ *                               bint dtype_is_object) noexcept nogil:
+ *     refcount_copying(dst, dtype_is_object, ndim, inc=False)
+ *     _slice_assign_scalar(dst.data, dst.shape, dst.strides, ndim, itemsize, item)             # <<<<<<<<<<<<<<
+ *     refcount_copying(dst, dtype_is_object, ndim, inc=True)
+ * 
  */
   __pyx_memoryview__slice_assign_scalar(__pyx_v_dst->data, __pyx_v_dst->shape, __pyx_v_dst->strides, __pyx_v_ndim, __pyx_v_itemsize, __pyx_v_item);
 
-  /* "View.MemoryView":1403
- *     _slice_assign_scalar(dst.data, dst.shape, dst.strides, ndim,
- *                          itemsize, item)
- *     refcount_copying(dst, dtype_is_object, ndim, True)             # <<<<<<<<<<<<<<
+  /* "View.MemoryView":1396
+ *     refcount_copying(dst, dtype_is_object, ndim, inc=False)
+ *     _slice_assign_scalar(dst.data, dst.shape, dst.strides, ndim, itemsize, item)
+ *     refcount_copying(dst, dtype_is_object, ndim, inc=True)             # <<<<<<<<<<<<<<
  * 
  * 
  */
   __pyx_memoryview_refcount_copying(__pyx_v_dst, __pyx_v_dtype_is_object, __pyx_v_ndim, 1);
 
-  /* "View.MemoryView":1397
+  /* "View.MemoryView":1391
  * 
  * @cname('__pyx_memoryview_slice_assign_scalar')
  * cdef void slice_assign_scalar(__Pyx_memviewslice *dst, int ndim,             # <<<<<<<<<<<<<<
  *                               size_t itemsize, void *item,
- *                               bint dtype_is_object) nogil:
+ *                               bint dtype_is_object) noexcept nogil:
  */
 
   /* function exit code */
 }
 
-/* "View.MemoryView":1407
+/* "View.MemoryView":1400
  * 
  * @cname('__pyx_memoryview__slice_assign_scalar')
  * cdef void _slice_assign_scalar(char *data, Py_ssize_t *shape,             # <<<<<<<<<<<<<<
  *                               Py_ssize_t *strides, int ndim,
- *                               size_t itemsize, void *item) nogil:
+ *                               size_t itemsize, void *item) noexcept nogil:
  */
 
 static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t *__pyx_v_shape, Py_ssize_t *__pyx_v_strides, int __pyx_v_ndim, size_t __pyx_v_itemsize, void *__pyx_v_item) {
@@ -15378,8 +16790,8 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
   Py_ssize_t __pyx_t_3;
   Py_ssize_t __pyx_t_4;
 
-  /* "View.MemoryView":1411
- *                               size_t itemsize, void *item) nogil:
+  /* "View.MemoryView":1404
+ *                               size_t itemsize, void *item) noexcept nogil:
  *     cdef Py_ssize_t i
  *     cdef Py_ssize_t stride = strides[0]             # <<<<<<<<<<<<<<
  *     cdef Py_ssize_t extent = shape[0]
@@ -15387,7 +16799,7 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
  */
   __pyx_v_stride = (__pyx_v_strides[0]);
 
-  /* "View.MemoryView":1412
+  /* "View.MemoryView":1405
  *     cdef Py_ssize_t i
  *     cdef Py_ssize_t stride = strides[0]
  *     cdef Py_ssize_t extent = shape[0]             # <<<<<<<<<<<<<<
@@ -15396,17 +16808,17 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
  */
   __pyx_v_extent = (__pyx_v_shape[0]);
 
-  /* "View.MemoryView":1414
+  /* "View.MemoryView":1407
  *     cdef Py_ssize_t extent = shape[0]
  * 
  *     if ndim == 1:             # <<<<<<<<<<<<<<
  *         for i in range(extent):
  *             memcpy(data, item, itemsize)
  */
-  __pyx_t_1 = ((__pyx_v_ndim == 1) != 0);
+  __pyx_t_1 = (__pyx_v_ndim == 1);
   if (__pyx_t_1) {
 
-    /* "View.MemoryView":1415
+    /* "View.MemoryView":1408
  * 
  *     if ndim == 1:
  *         for i in range(extent):             # <<<<<<<<<<<<<<
@@ -15418,7 +16830,7 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
     for (__pyx_t_4 = 0; __pyx_t_4 < __pyx_t_3; __pyx_t_4+=1) {
       __pyx_v_i = __pyx_t_4;
 
-      /* "View.MemoryView":1416
+      /* "View.MemoryView":1409
  *     if ndim == 1:
  *         for i in range(extent):
  *             memcpy(data, item, itemsize)             # <<<<<<<<<<<<<<
@@ -15427,7 +16839,7 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
  */
       (void)(memcpy(__pyx_v_data, __pyx_v_item, __pyx_v_itemsize));
 
-      /* "View.MemoryView":1417
+      /* "View.MemoryView":1410
  *         for i in range(extent):
  *             memcpy(data, item, itemsize)
  *             data += stride             # <<<<<<<<<<<<<<
@@ -15437,7 +16849,7 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
       __pyx_v_data = (__pyx_v_data + __pyx_v_stride);
     }
 
-    /* "View.MemoryView":1414
+    /* "View.MemoryView":1407
  *     cdef Py_ssize_t extent = shape[0]
  * 
  *     if ndim == 1:             # <<<<<<<<<<<<<<
@@ -15447,12 +16859,12 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
     goto __pyx_L3;
   }
 
-  /* "View.MemoryView":1419
+  /* "View.MemoryView":1412
  *             data += stride
  *     else:
  *         for i in range(extent):             # <<<<<<<<<<<<<<
- *             _slice_assign_scalar(data, shape + 1, strides + 1,
- *                                 ndim - 1, itemsize, item)
+ *             _slice_assign_scalar(data, shape + 1, strides + 1, ndim - 1, itemsize, item)
+ *             data += stride
  */
   /*else*/ {
     __pyx_t_2 = __pyx_v_extent;
@@ -15460,18 +16872,18 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
     for (__pyx_t_4 = 0; __pyx_t_4 < __pyx_t_3; __pyx_t_4+=1) {
       __pyx_v_i = __pyx_t_4;
 
-      /* "View.MemoryView":1420
+      /* "View.MemoryView":1413
  *     else:
  *         for i in range(extent):
- *             _slice_assign_scalar(data, shape + 1, strides + 1,             # <<<<<<<<<<<<<<
- *                                 ndim - 1, itemsize, item)
+ *             _slice_assign_scalar(data, shape + 1, strides + 1, ndim - 1, itemsize, item)             # <<<<<<<<<<<<<<
  *             data += stride
+ * 
  */
       __pyx_memoryview__slice_assign_scalar(__pyx_v_data, (__pyx_v_shape + 1), (__pyx_v_strides + 1), (__pyx_v_ndim - 1), __pyx_v_itemsize, __pyx_v_item);
 
-      /* "View.MemoryView":1422
- *             _slice_assign_scalar(data, shape + 1, strides + 1,
- *                                 ndim - 1, itemsize, item)
+      /* "View.MemoryView":1414
+ *         for i in range(extent):
+ *             _slice_assign_scalar(data, shape + 1, strides + 1, ndim - 1, itemsize, item)
  *             data += stride             # <<<<<<<<<<<<<<
  * 
  * 
@@ -15481,12 +16893,12 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
   }
   __pyx_L3:;
 
-  /* "View.MemoryView":1407
+  /* "View.MemoryView":1400
  * 
  * @cname('__pyx_memoryview__slice_assign_scalar')
  * cdef void _slice_assign_scalar(char *data, Py_ssize_t *shape,             # <<<<<<<<<<<<<<
  *                               Py_ssize_t *strides, int ndim,
- *                               size_t itemsize, void *item) nogil:
+ *                               size_t itemsize, void *item) noexcept nogil:
  */
 
   /* function exit code */
@@ -15499,70 +16911,114 @@ static void __pyx_memoryview__slice_assign_scalar(char *__pyx_v_data, Py_ssize_t
  */
 
 /* Python wrapper */
-static PyObject *__pyx_pw_15View_dot_MemoryView_1__pyx_unpickle_Enum(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static PyMethodDef __pyx_mdef_15View_dot_MemoryView_1__pyx_unpickle_Enum = {"__pyx_unpickle_Enum", (PyCFunction)(void*)(PyCFunctionWithKeywords)__pyx_pw_15View_dot_MemoryView_1__pyx_unpickle_Enum, METH_VARARGS|METH_KEYWORDS, 0};
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-    __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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+      __pyx_t_1 = __Pyx_PyObject_FastCall(__pyx_t_6, __pyx_callargs+1-__pyx_t_8, 1+__pyx_t_8);
+      __Pyx_XDECREF(__pyx_t_7); __pyx_t_7 = 0;
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   __pyx_L1_error:;
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+  __Pyx_XDECREF(__pyx_t_5);
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-  PyObject *o;
-  if (likely((t->tp_flags & Py_TPFLAGS_IS_ABSTRACT) == 0)) {
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-  } else {
-    o = (PyObject *) PyBaseObject_Type.tp_new(t, __pyx_empty_tuple, 0);
-  }
-  if (unlikely(!o)) return 0;
-  p = ((struct __pyx_array_obj *)o);
-  p->__pyx_vtab = __pyx_vtabptr_array;
-  p->mode = ((PyObject*)Py_None); Py_INCREF(Py_None);
-  p->_format = ((PyObject*)Py_None); Py_INCREF(Py_None);
-  if (unlikely(__pyx_array___cinit__(o, a, k) < 0)) goto bad;
-  return o;
-  bad:
-  Py_DECREF(o); o = 0;
-  return NULL;
-}
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+ * @cython.boundscheck(False)  # Deactivate bounds checking
+ * @cython.wraparound(False)   # Deactivate negative indexing.
+ * cpdef int voxelize_mesh_(bint[:, :, :] occ, float[:, :, ::1] faces):             # <<<<<<<<<<<<<<
+ *     assert(faces.shape[1] == 3)
+ *     assert(faces.shape[2] == 3)
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-static void __pyx_tp_dealloc_array(PyObject *o) {
-  struct __pyx_array_obj *p = (struct __pyx_array_obj *)o;
-  #if CYTHON_USE_TP_FINALIZE
-  if (unlikely(PyType_HasFeature(Py_TYPE(o), Py_TPFLAGS_HAVE_FINALIZE) && Py_TYPE(o)->tp_finalize) && (!PyType_IS_GC(Py_TYPE(o)) || !_PyGC_FINALIZED(o))) {
-    if (PyObject_CallFinalizerFromDealloc(o)) return;
+static PyObject *__pyx_pw_8voxelize_1voxelize_mesh_(PyObject *__pyx_self, 
+#if CYTHON_METH_FASTCALL
+PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
+#else
+PyObject *__pyx_args, PyObject *__pyx_kwds
+#endif
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+  Py_ssize_t __pyx_v_n_faces;
+  int __pyx_v_i;
+  int __pyx_r;
+  int __pyx_t_1;
+  Py_ssize_t __pyx_t_2;
+  Py_ssize_t __pyx_t_3;
+  int __pyx_t_4;
+  __Pyx_memviewslice __pyx_t_5 = { 0, 0, { 0 }, { 0 }, { 0 } };
+  int __pyx_t_6;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
+
+  /* "voxelize.pyx":14
+ * @cython.wraparound(False)   # Deactivate negative indexing.
+ * cpdef int voxelize_mesh_(bint[:, :, :] occ, float[:, :, ::1] faces):
+ *     assert(faces.shape[1] == 3)             # <<<<<<<<<<<<<<
+ *     assert(faces.shape[2] == 3)
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+ */
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+    __pyx_t_1 = ((__pyx_v_faces.shape[1]) == 3);
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-    __Pyx_SET_REFCNT(o, Py_REFCNT(o) - 1);
-    PyErr_Restore(etype, eval, etb);
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-  Py_CLEAR(p->_format);
-  (*Py_TYPE(o)->tp_free)(o);
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-  }
-  else {
-    PyErr_Format(PyExc_NotImplementedError,
-      "Subscript deletion not supported by %.200s", Py_TYPE(o)->tp_name);
-    return -1;
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+ *     assert(faces.shape[2] == 3)             # <<<<<<<<<<<<<<
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-    v = __pyx_array___getattr__(o, n);
-  }
-  return v;
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 }
 
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-  {"__setstate_cython__", (PyCFunction)__pyx_pw___pyx_array_3__setstate_cython__, METH_O, 0},
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-  0, /*sq_repeat*/
-  __pyx_sq_item_array, /*sq_item*/
-  0, /*sq_slice*/
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-  0, /*sq_inplace_repeat*/
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-  __pyx_array___getitem__, /*mp_subscript*/
-  __pyx_mp_ass_subscript_array, /*mp_ass_subscript*/
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+ * @cython.wraparound(False)   # Deactivate negative indexing.
+ * cpdef int voxelize_mesh_(bint[:, :, :] occ, float[:, :, ::1] faces):             # <<<<<<<<<<<<<<
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-  0, /*bf_releasebuffer*/
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+  __PYX_XCLEAR_MEMVIEW(&__pyx_t_5, 1);
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+  __pyx_r = -1;
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+  long __pyx_t_21;
+  int __pyx_t_22;
+  Py_ssize_t __pyx_t_23;
+  Py_ssize_t __pyx_t_24;
+  Py_ssize_t __pyx_t_25;
+  Py_ssize_t __pyx_t_26;
 
-static PyObject *__pyx_getprop___pyx_memoryview_base(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_15View_dot_MemoryView_10memoryview_4base_1__get__(o);
-}
+  /* "voxelize.pyx":33
+ *     cdef bint intersection
+ * 
+ *     boxhalfsize[:] = (0.5, 0.5, 0.5)             # <<<<<<<<<<<<<<
+ * 
+ *     for i in range(3):
+ */
+  __pyx_t_1 = __pyx_v_boxhalfsize;
+  __pyx_t_2 = 0.5;
+  __pyx_t_3 = 0.5;
+  __pyx_t_4 = 0.5;
+  (__pyx_t_1[0]) = __pyx_t_2;
+  (__pyx_t_1[1]) = __pyx_t_3;
+  (__pyx_t_1[2]) = __pyx_t_4;
 
-static PyObject *__pyx_getprop___pyx_memoryview_shape(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_15View_dot_MemoryView_10memoryview_5shape_1__get__(o);
-}
+  /* "voxelize.pyx":35
+ *     boxhalfsize[:] = (0.5, 0.5, 0.5)
+ * 
+ *     for i in range(3):             # <<<<<<<<<<<<<<
+ *         bbox_min[i] = <int> (
+ *             min(triverts[0, i], triverts[1, i], triverts[2, i])
+ */
+  for (__pyx_t_5 = 0; __pyx_t_5 < 3; __pyx_t_5+=1) {
+    __pyx_v_i = __pyx_t_5;
 
-static PyObject *__pyx_getprop___pyx_memoryview_strides(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_15View_dot_MemoryView_10memoryview_7strides_1__get__(o);
-}
+    /* "voxelize.pyx":37
+ *     for i in range(3):
+ *         bbox_min[i] = <int> (
+ *             min(triverts[0, i], triverts[1, i], triverts[2, i])             # <<<<<<<<<<<<<<
+ *         )
+ *         bbox_min[i] = min(max(bbox_min[i], 0), occupancies.shape[i] - 1)
+ */
+    __pyx_t_6 = 1;
+    __pyx_t_7 = __pyx_v_i;
+    __pyx_t_8 = (*((float *) ( /* dim=1 */ ((char *) (((float *) ( /* dim=0 */ (__pyx_v_triverts.data + __pyx_t_6 * __pyx_v_triverts.strides[0]) )) + __pyx_t_7)) )));
+    __pyx_t_7 = 2;
+    __pyx_t_6 = __pyx_v_i;
+    __pyx_t_9 = (*((float *) ( /* dim=1 */ ((char *) (((float *) ( /* dim=0 */ (__pyx_v_triverts.data + __pyx_t_7 * __pyx_v_triverts.strides[0]) )) + __pyx_t_6)) )));
+    __pyx_t_6 = 0;
+    __pyx_t_7 = __pyx_v_i;
+    __pyx_t_10 = (*((float *) ( /* dim=1 */ ((char *) (((float *) ( /* dim=0 */ (__pyx_v_triverts.data + __pyx_t_6 * __pyx_v_triverts.strides[0]) )) + __pyx_t_7)) )));
+    __pyx_t_12 = (__pyx_t_8 < __pyx_t_10);
+    if (__pyx_t_12) {
+      __pyx_t_11 = __pyx_t_8;
+    } else {
+      __pyx_t_11 = __pyx_t_10;
+    }
+    __pyx_t_10 = __pyx_t_11;
+    __pyx_t_12 = (__pyx_t_9 < __pyx_t_10);
+    if (__pyx_t_12) {
+      __pyx_t_11 = __pyx_t_9;
+    } else {
+      __pyx_t_11 = __pyx_t_10;
+    }
 
-static PyObject *__pyx_getprop___pyx_memoryview_suboffsets(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_15View_dot_MemoryView_10memoryview_10suboffsets_1__get__(o);
-}
+    /* "voxelize.pyx":36
+ * 
+ *     for i in range(3):
+ *         bbox_min[i] = <int> (             # <<<<<<<<<<<<<<
+ *             min(triverts[0, i], triverts[1, i], triverts[2, i])
+ *         )
+ */
+    (__pyx_v_bbox_min[__pyx_v_i]) = ((int)__pyx_t_11);
 
-static PyObject *__pyx_getprop___pyx_memoryview_ndim(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_15View_dot_MemoryView_10memoryview_4ndim_1__get__(o);
-}
+    /* "voxelize.pyx":39
+ *             min(triverts[0, i], triverts[1, i], triverts[2, i])
+ *         )
+ *         bbox_min[i] = min(max(bbox_min[i], 0), occupancies.shape[i] - 1)             # <<<<<<<<<<<<<<
+ * 
+ *     for i in range(3):
+ */
+    __pyx_t_13 = ((__pyx_v_occupancies.shape[__pyx_v_i]) - 1);
+    __pyx_t_14 = 0;
+    __pyx_t_15 = (__pyx_v_bbox_min[__pyx_v_i]);
+    __pyx_t_12 = (__pyx_t_14 > __pyx_t_15);
+    if (__pyx_t_12) {
+      __pyx_t_16 = __pyx_t_14;
+    } else {
+      __pyx_t_16 = __pyx_t_15;
+    }
+    __pyx_t_14 = __pyx_t_16;
+    __pyx_t_12 = (__pyx_t_13 < __pyx_t_14);
+    if (__pyx_t_12) {
+      __pyx_t_17 = __pyx_t_13;
+    } else {
+      __pyx_t_17 = __pyx_t_14;
+    }
+    (__pyx_v_bbox_min[__pyx_v_i]) = __pyx_t_17;
+  }
 
-static PyObject *__pyx_getprop___pyx_memoryview_itemsize(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_15View_dot_MemoryView_10memoryview_8itemsize_1__get__(o);
-}
+  /* "voxelize.pyx":41
+ *         bbox_min[i] = min(max(bbox_min[i], 0), occupancies.shape[i] - 1)
+ * 
+ *     for i in range(3):             # <<<<<<<<<<<<<<
+ *         bbox_max[i] = <int> (
+ *             max(triverts[0, i], triverts[1, i], triverts[2, i])
+ */
+  for (__pyx_t_5 = 0; __pyx_t_5 < 3; __pyx_t_5+=1) {
+    __pyx_v_i = __pyx_t_5;
 
-static PyObject *__pyx_getprop___pyx_memoryview_nbytes(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_15View_dot_MemoryView_10memoryview_6nbytes_1__get__(o);
-}
+    /* "voxelize.pyx":43
+ *     for i in range(3):
+ *         bbox_max[i] = <int> (
+ *             max(triverts[0, i], triverts[1, i], triverts[2, i])             # <<<<<<<<<<<<<<
+ *         )
+ *         bbox_max[i] = min(max(bbox_max[i], 0), occupancies.shape[i] - 1)
+ */
+    __pyx_t_7 = 1;
+    __pyx_t_6 = __pyx_v_i;
+    __pyx_t_11 = (*((float *) ( /* dim=1 */ ((char *) (((float *) ( /* dim=0 */ (__pyx_v_triverts.data + __pyx_t_7 * __pyx_v_triverts.strides[0]) )) + __pyx_t_6)) )));
+    __pyx_t_6 = 2;
+    __pyx_t_7 = __pyx_v_i;
+    __pyx_t_8 = (*((float *) ( /* dim=1 */ ((char *) (((float *) ( /* dim=0 */ (__pyx_v_triverts.data + __pyx_t_6 * __pyx_v_triverts.strides[0]) )) + __pyx_t_7)) )));
+    __pyx_t_7 = 0;
+    __pyx_t_6 = __pyx_v_i;
+    __pyx_t_9 = (*((float *) ( /* dim=1 */ ((char *) (((float *) ( /* dim=0 */ (__pyx_v_triverts.data + __pyx_t_7 * __pyx_v_triverts.strides[0]) )) + __pyx_t_6)) )));
+    __pyx_t_12 = (__pyx_t_11 > __pyx_t_9);
+    if (__pyx_t_12) {
+      __pyx_t_10 = __pyx_t_11;
+    } else {
+      __pyx_t_10 = __pyx_t_9;
+    }
+    __pyx_t_9 = __pyx_t_10;
+    __pyx_t_12 = (__pyx_t_8 > __pyx_t_9);
+    if (__pyx_t_12) {
+      __pyx_t_10 = __pyx_t_8;
+    } else {
+      __pyx_t_10 = __pyx_t_9;
+    }
 
-static PyObject *__pyx_getprop___pyx_memoryview_size(PyObject *o, CYTHON_UNUSED void *x) {
-  return __pyx_pw_15View_dot_MemoryView_10memoryview_4size_1__get__(o);
-}
+    /* "voxelize.pyx":42
+ * 
+ *     for i in range(3):
+ *         bbox_max[i] = <int> (             # <<<<<<<<<<<<<<
+ *             max(triverts[0, i], triverts[1, i], triverts[2, i])
+ *         )
+ */
+    (__pyx_v_bbox_max[__pyx_v_i]) = ((int)__pyx_t_10);
 
-static PyMethodDef __pyx_methods_memoryview[] = {
-  {"is_c_contig", (PyCFunction)__pyx_memoryview_is_c_contig, METH_NOARGS, 0},
-  {"is_f_contig", (PyCFunction)__pyx_memoryview_is_f_contig, METH_NOARGS, 0},
-  {"copy", (PyCFunction)__pyx_memoryview_copy, METH_NOARGS, 0},
-  {"copy_fortran", (PyCFunction)__pyx_memoryview_copy_fortran, METH_NOARGS, 0},
-  {"__reduce_cython__", (PyCFunction)__pyx_pw___pyx_memoryview_1__reduce_cython__, METH_NOARGS, 0},
-  {"__setstate_cython__", (PyCFunction)__pyx_pw___pyx_memoryview_3__setstate_cython__, METH_O, 0},
-  {0, 0, 0, 0}
-};
+    /* "voxelize.pyx":45
+ *             max(triverts[0, i], triverts[1, i], triverts[2, i])
+ *         )
+ *         bbox_max[i] = min(max(bbox_max[i], 0), occupancies.shape[i] - 1)             # <<<<<<<<<<<<<<
+ * 
+ *     for i in range(bbox_min[0], bbox_max[0] + 1):
+ */
+    __pyx_t_17 = ((__pyx_v_occupancies.shape[__pyx_v_i]) - 1);
+    __pyx_t_14 = 0;
+    __pyx_t_15 = (__pyx_v_bbox_max[__pyx_v_i]);
+    __pyx_t_12 = (__pyx_t_14 > __pyx_t_15);
+    if (__pyx_t_12) {
+      __pyx_t_16 = __pyx_t_14;
+    } else {
+      __pyx_t_16 = __pyx_t_15;
+    }
+    __pyx_t_14 = __pyx_t_16;
+    __pyx_t_12 = (__pyx_t_17 < __pyx_t_14);
+    if (__pyx_t_12) {
+      __pyx_t_13 = __pyx_t_17;
+    } else {
+      __pyx_t_13 = __pyx_t_14;
+    }
+    (__pyx_v_bbox_max[__pyx_v_i]) = __pyx_t_13;
+  }
 
-static struct PyGetSetDef __pyx_getsets_memoryview[] = {
-  {(char *)"T", __pyx_getprop___pyx_memoryview_T, 0, (char *)0, 0},
-  {(char *)"base", __pyx_getprop___pyx_memoryview_base, 0, (char *)0, 0},
-  {(char *)"shape", __pyx_getprop___pyx_memoryview_shape, 0, (char *)0, 0},
-  {(char *)"strides", __pyx_getprop___pyx_memoryview_strides, 0, (char *)0, 0},
-  {(char *)"suboffsets", __pyx_getprop___pyx_memoryview_suboffsets, 0, (char *)0, 0},
-  {(char *)"ndim", __pyx_getprop___pyx_memoryview_ndim, 0, (char *)0, 0},
-  {(char *)"itemsize", __pyx_getprop___pyx_memoryview_itemsize, 0, (char *)0, 0},
-  {(char *)"nbytes", __pyx_getprop___pyx_memoryview_nbytes, 0, (char *)0, 0},
-  {(char *)"size", __pyx_getprop___pyx_memoryview_size, 0, (char *)0, 0},
-  {0, 0, 0, 0, 0}
-};
+  /* "voxelize.pyx":47
+ *         bbox_max[i] = min(max(bbox_max[i], 0), occupancies.shape[i] - 1)
+ * 
+ *     for i in range(bbox_min[0], bbox_max[0] + 1):             # <<<<<<<<<<<<<<
+ *         for j in range(bbox_min[1], bbox_max[1] + 1):
+ *             for k in range(bbox_min[2], bbox_max[2] + 1):
+ */
+  __pyx_t_14 = ((__pyx_v_bbox_max[0]) + 1);
+  __pyx_t_16 = __pyx_t_14;
+  for (__pyx_t_5 = (__pyx_v_bbox_min[0]); __pyx_t_5 < __pyx_t_16; __pyx_t_5+=1) {
+    __pyx_v_i = __pyx_t_5;
 
-static PySequenceMethods __pyx_tp_as_sequence_memoryview = {
-  __pyx_memoryview___len__, /*sq_length*/
-  0, /*sq_concat*/
-  0, /*sq_repeat*/
-  __pyx_sq_item_memoryview, /*sq_item*/
-  0, /*sq_slice*/
-  0, /*sq_ass_item*/
-  0, /*sq_ass_slice*/
-  0, /*sq_contains*/
-  0, /*sq_inplace_concat*/
-  0, /*sq_inplace_repeat*/
-};
+    /* "voxelize.pyx":48
+ * 
+ *     for i in range(bbox_min[0], bbox_max[0] + 1):
+ *         for j in range(bbox_min[1], bbox_max[1] + 1):             # <<<<<<<<<<<<<<
+ *             for k in range(bbox_min[2], bbox_max[2] + 1):
+ *                 boxcenter[:] = (i + 0.5, j + 0.5, k + 0.5)
+ */
+    __pyx_t_18 = ((__pyx_v_bbox_max[1]) + 1);
+    __pyx_t_19 = __pyx_t_18;
+    for (__pyx_t_15 = (__pyx_v_bbox_min[1]); __pyx_t_15 < __pyx_t_19; __pyx_t_15+=1) {
+      __pyx_v_j = __pyx_t_15;
 
-static PyMappingMethods __pyx_tp_as_mapping_memoryview = {
-  __pyx_memoryview___len__, /*mp_length*/
-  __pyx_memoryview___getitem__, /*mp_subscript*/
-  __pyx_mp_ass_subscript_memoryview, /*mp_ass_subscript*/
-};
-
-static PyBufferProcs __pyx_tp_as_buffer_memoryview = {
-  #if PY_MAJOR_VERSION < 3
-  0, /*bf_getreadbuffer*/
-  #endif
-  #if PY_MAJOR_VERSION < 3
-  0, /*bf_getwritebuffer*/
-  #endif
-  #if PY_MAJOR_VERSION < 3
-  0, /*bf_getsegcount*/
-  #endif
-  #if PY_MAJOR_VERSION < 3
-  0, /*bf_getcharbuffer*/
-  #endif
-  __pyx_memoryview_getbuffer, /*bf_getbuffer*/
-  0, /*bf_releasebuffer*/
-};
+      /* "voxelize.pyx":49
+ *     for i in range(bbox_min[0], bbox_max[0] + 1):
+ *         for j in range(bbox_min[1], bbox_max[1] + 1):
+ *             for k in range(bbox_min[2], bbox_max[2] + 1):             # <<<<<<<<<<<<<<
+ *                 boxcenter[:] = (i + 0.5, j + 0.5, k + 0.5)
+ *                 intersection = triBoxOverlap(&boxcenter[0], &boxhalfsize[0],
+ */
+      __pyx_t_20 = ((__pyx_v_bbox_max[2]) + 1);
+      __pyx_t_21 = __pyx_t_20;
+      for (__pyx_t_22 = (__pyx_v_bbox_min[2]); __pyx_t_22 < __pyx_t_21; __pyx_t_22+=1) {
+        __pyx_v_k = __pyx_t_22;
 
-static PyTypeObject __pyx_type___pyx_memoryview = {
-  PyVarObject_HEAD_INIT(0, 0)
-  "voxelize.memoryview", /*tp_name*/
-  sizeof(struct __pyx_memoryview_obj), /*tp_basicsize*/
-  0, /*tp_itemsize*/
-  __pyx_tp_dealloc_memoryview, /*tp_dealloc*/
-  #if PY_VERSION_HEX < 0x030800b4
-  0, /*tp_print*/
-  #endif
-  #if PY_VERSION_HEX >= 0x030800b4
-  0, /*tp_vectorcall_offset*/
-  #endif
-  0, /*tp_getattr*/
-  0, /*tp_setattr*/
-  #if PY_MAJOR_VERSION < 3
-  0, /*tp_compare*/
-  #endif
-  #if PY_MAJOR_VERSION >= 3
-  0, /*tp_as_async*/
-  #endif
-  __pyx_memoryview___repr__, /*tp_repr*/
-  0, /*tp_as_number*/
-  &__pyx_tp_as_sequence_memoryview, /*tp_as_sequence*/
-  &__pyx_tp_as_mapping_memoryview, /*tp_as_mapping*/
-  0, /*tp_hash*/
-  0, /*tp_call*/
-  __pyx_memoryview___str__, /*tp_str*/
-  0, /*tp_getattro*/
-  0, /*tp_setattro*/
-  &__pyx_tp_as_buffer_memoryview, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
-  0, /*tp_doc*/
-  __pyx_tp_traverse_memoryview, /*tp_traverse*/
-  __pyx_tp_clear_memoryview, /*tp_clear*/
-  0, /*tp_richcompare*/
-  0, /*tp_weaklistoffset*/
-  0, /*tp_iter*/
-  0, /*tp_iternext*/
-  __pyx_methods_memoryview, /*tp_methods*/
-  0, /*tp_members*/
-  __pyx_getsets_memoryview, /*tp_getset*/
-  0, /*tp_base*/
-  0, /*tp_dict*/
-  0, /*tp_descr_get*/
-  0, /*tp_descr_set*/
-  0, /*tp_dictoffset*/
-  0, /*tp_init*/
-  0, /*tp_alloc*/
-  __pyx_tp_new_memoryview, /*tp_new*/
-  0, /*tp_free*/
-  0, /*tp_is_gc*/
-  0, /*tp_bases*/
-  0, /*tp_mro*/
-  0, /*tp_cache*/
-  0, /*tp_subclasses*/
-  0, /*tp_weaklist*/
-  0, /*tp_del*/
-  0, /*tp_version_tag*/
-  #if PY_VERSION_HEX >= 0x030400a1
-  0, /*tp_finalize*/
-  #endif
-  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
-  0, /*tp_vectorcall*/
-  #endif
-  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
-  0, /*tp_print*/
-  #endif
-  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000
-  0, /*tp_pypy_flags*/
-  #endif
-};
-static struct __pyx_vtabstruct__memoryviewslice __pyx_vtable__memoryviewslice;
+        /* "voxelize.pyx":50
+ *         for j in range(bbox_min[1], bbox_max[1] + 1):
+ *             for k in range(bbox_min[2], bbox_max[2] + 1):
+ *                 boxcenter[:] = (i + 0.5, j + 0.5, k + 0.5)             # <<<<<<<<<<<<<<
+ *                 intersection = triBoxOverlap(&boxcenter[0], &boxhalfsize[0],
+ *                                              &triverts[0, 0], &triverts[1, 0], &triverts[2, 0])
+ */
+        __pyx_t_1 = __pyx_v_boxcenter;
+        __pyx_t_4 = (__pyx_v_i + 0.5);
+        __pyx_t_3 = (__pyx_v_j + 0.5);
+        __pyx_t_2 = (__pyx_v_k + 0.5);
+        (__pyx_t_1[0]) = __pyx_t_4;
+        (__pyx_t_1[1]) = __pyx_t_3;
+        (__pyx_t_1[2]) = __pyx_t_2;
 
-static PyObject *__pyx_tp_new__memoryviewslice(PyTypeObject *t, PyObject *a, PyObject *k) {
-  struct __pyx_memoryviewslice_obj *p;
-  PyObject *o = __pyx_tp_new_memoryview(t, a, k);
-  if (unlikely(!o)) return 0;
-  p = ((struct __pyx_memoryviewslice_obj *)o);
-  p->__pyx_base.__pyx_vtab = (struct __pyx_vtabstruct_memoryview*)__pyx_vtabptr__memoryviewslice;
-  p->from_object = Py_None; Py_INCREF(Py_None);
-  p->from_slice.memview = NULL;
-  return o;
-}
+        /* "voxelize.pyx":52
+ *                 boxcenter[:] = (i + 0.5, j + 0.5, k + 0.5)
+ *                 intersection = triBoxOverlap(&boxcenter[0], &boxhalfsize[0],
+ *                                              &triverts[0, 0], &triverts[1, 0], &triverts[2, 0])             # <<<<<<<<<<<<<<
+ *                 occupancies[i, j, k] |= intersection
+ * 
+ */
+        __pyx_t_6 = 0;
+        __pyx_t_7 = 0;
+        __pyx_t_23 = 1;
+        __pyx_t_24 = 0;
+        __pyx_t_25 = 2;
+        __pyx_t_26 = 0;
 
-static void __pyx_tp_dealloc__memoryviewslice(PyObject *o) {
-  struct __pyx_memoryviewslice_obj *p = (struct __pyx_memoryviewslice_obj *)o;
-  #if CYTHON_USE_TP_FINALIZE
-  if (unlikely(PyType_HasFeature(Py_TYPE(o), Py_TPFLAGS_HAVE_FINALIZE) && Py_TYPE(o)->tp_finalize) && !_PyGC_FINALIZED(o)) {
-    if (PyObject_CallFinalizerFromDealloc(o)) return;
-  }
-  #endif
-  PyObject_GC_UnTrack(o);
-  {
-    PyObject *etype, *eval, *etb;
-    PyErr_Fetch(&etype, &eval, &etb);
-    __Pyx_SET_REFCNT(o, Py_REFCNT(o) + 1);
-    __pyx_memoryviewslice___dealloc__(o);
-    __Pyx_SET_REFCNT(o, Py_REFCNT(o) - 1);
-    PyErr_Restore(etype, eval, etb);
-  }
-  Py_CLEAR(p->from_object);
-  PyObject_GC_Track(o);
-  __pyx_tp_dealloc_memoryview(o);
-}
+        /* "voxelize.pyx":51
+ *             for k in range(bbox_min[2], bbox_max[2] + 1):
+ *                 boxcenter[:] = (i + 0.5, j + 0.5, k + 0.5)
+ *                 intersection = triBoxOverlap(&boxcenter[0], &boxhalfsize[0],             # <<<<<<<<<<<<<<
+ *                                              &triverts[0, 0], &triverts[1, 0], &triverts[2, 0])
+ *                 occupancies[i, j, k] |= intersection
+ */
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-  if (p->from_object) {
-    e = (*v)(p->from_object, a); if (e) return e;
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+    }
   }
-  return 0;
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-  PyObject* tmp;
-  struct __pyx_memoryviewslice_obj *p = (struct __pyx_memoryviewslice_obj *)o;
-  __pyx_tp_clear_memoryview(o);
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-  Py_XDECREF(tmp);
-  __PYX_XDEC_MEMVIEW(&p->from_slice, 1);
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+ * @cython.wraparound(False)   # Deactivate negative indexing.
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 }
 
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-  0, /*tp_print*/
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-  #if PY_VERSION_HEX >= 0x030800b4
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-  0, /*tp_compare*/
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   #endif
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-  0, /*tp_richcompare*/
-  0, /*tp_weaklistoffset*/
-  0, /*tp_iter*/
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-  0, /*tp_base*/
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-  0, /*tp_descr_get*/
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-  __pyx_tp_new__memoryviewslice, /*tp_new*/
-  0, /*tp_free*/
-  0, /*tp_is_gc*/
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+ * cdef int test_triangle_aabb(float[::1] boxcenter, float[::1] boxhalfsize, float[:, ::1] triverts):             # <<<<<<<<<<<<<<
+ *     assert(boxcenter.shape[0] == 3)
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+ *     assert(boxhalfsize.shape[0] == 3)
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+ *     assert(boxcenter.shape[0] == 3)
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+ *                                     &triverts[0, 0], &triverts[1, 0], &triverts[2, 0])
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  */
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+  0, /*tp_members*/
+  __pyx_getsets_array, /*tp_getset*/
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+  0, /*tp_dict*/
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+  0, /*tp_dictoffset*/
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+  0, /*tp_init*/
+  0, /*tp_alloc*/
+  __pyx_tp_new_array, /*tp_new*/
+  0, /*tp_free*/
+  0, /*tp_is_gc*/
+  0, /*tp_bases*/
+  0, /*tp_mro*/
+  0, /*tp_cache*/
+  0, /*tp_subclasses*/
+  0, /*tp_weaklist*/
+  0, /*tp_del*/
+  0, /*tp_version_tag*/
+  #if PY_VERSION_HEX >= 0x030400a1
+  #if CYTHON_USE_TP_FINALIZE
+  0, /*tp_finalize*/
+  #else
+  NULL, /*tp_finalize*/
+  #endif
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
+  0, /*tp_vectorcall*/
+  #endif
+  #if __PYX_NEED_TP_PRINT_SLOT == 1
+  0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030C0000
+  0, /*tp_watched*/
+  #endif
+  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000 && PY_VERSION_HEX < 0x030a0000
+  0, /*tp_pypy_flags*/
+  #endif
+};
+#endif
+
+static PyObject *__pyx_tp_new_Enum(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_MemviewEnum_obj *p;
+  PyObject *o;
+  #if CYTHON_COMPILING_IN_LIMITED_API
+  allocfunc alloc_func = (allocfunc)PyType_GetSlot(t, Py_tp_alloc);
+  o = alloc_func(t, 0);
+  #else
+  if (likely(!__Pyx_PyType_HasFeature(t, Py_TPFLAGS_IS_ABSTRACT))) {
+    o = (*t->tp_alloc)(t, 0);
+  } else {
+    o = (PyObject *) PyBaseObject_Type.tp_new(t, __pyx_empty_tuple, 0);
   }
-  if (__Pyx_setup_reduce((PyObject*)&__pyx_type___pyx_MemviewEnum) < 0) __PYX_ERR(1, 279, __pyx_L1_error)
-  __pyx_MemviewEnum_type = &__pyx_type___pyx_MemviewEnum;
-  __pyx_vtabptr_memoryview = &__pyx_vtable_memoryview;
-  __pyx_vtable_memoryview.get_item_pointer = (char *(*)(struct __pyx_memoryview_obj *, PyObject *))__pyx_memoryview_get_item_pointer;
-  __pyx_vtable_memoryview.is_slice = (PyObject *(*)(struct __pyx_memoryview_obj *, PyObject *))__pyx_memoryview_is_slice;
-  __pyx_vtable_memoryview.setitem_slice_assignment = (PyObject *(*)(struct __pyx_memoryview_obj *, PyObject *, PyObject *))__pyx_memoryview_setitem_slice_assignment;
-  __pyx_vtable_memoryview.setitem_slice_assign_scalar = (PyObject *(*)(struct __pyx_memoryview_obj *, struct __pyx_memoryview_obj *, PyObject *))__pyx_memoryview_setitem_slice_assign_scalar;
-  __pyx_vtable_memoryview.setitem_indexed = (PyObject *(*)(struct __pyx_memoryview_obj *, PyObject *, PyObject *))__pyx_memoryview_setitem_indexed;
-  __pyx_vtable_memoryview.convert_item_to_object = (PyObject *(*)(struct __pyx_memoryview_obj *, char *))__pyx_memoryview_convert_item_to_object;
-  __pyx_vtable_memoryview.assign_item_from_object = (PyObject *(*)(struct __pyx_memoryview_obj *, char *, PyObject *))__pyx_memoryview_assign_item_from_object;
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-  #if PY_VERSION_HEX < 0x030800B1
-  __pyx_type___pyx_memoryview.tp_print = 0;
+  if (unlikely(!o)) return 0;
   #endif
-  if ((CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP) && likely(!__pyx_type___pyx_memoryview.tp_dictoffset && __pyx_type___pyx_memoryview.tp_getattro == PyObject_GenericGetAttr)) {
-    __pyx_type___pyx_memoryview.tp_getattro = __Pyx_PyObject_GenericGetAttr;
+  p = ((struct __pyx_MemviewEnum_obj *)o);
+  p->name = Py_None; Py_INCREF(Py_None);
+  return o;
+}
+
+static void __pyx_tp_dealloc_Enum(PyObject *o) {
+  struct __pyx_MemviewEnum_obj *p = (struct __pyx_MemviewEnum_obj *)o;
+  #if CYTHON_USE_TP_FINALIZE
+  if (unlikely((PY_VERSION_HEX >= 0x03080000 || __Pyx_PyType_HasFeature(Py_TYPE(o), Py_TPFLAGS_HAVE_FINALIZE)) && __Pyx_PyObject_GetSlot(o, tp_finalize, destructor)) && !__Pyx_PyObject_GC_IsFinalized(o)) {
+    if (__Pyx_PyObject_GetSlot(o, tp_dealloc, destructor) == __pyx_tp_dealloc_Enum) {
+      if (PyObject_CallFinalizerFromDealloc(o)) return;
+    }
   }
-  if (__Pyx_SetVtable(__pyx_type___pyx_memoryview.tp_dict, __pyx_vtabptr_memoryview) < 0) __PYX_ERR(1, 330, __pyx_L1_error)
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-  __pyx_vtabptr__memoryviewslice = &__pyx_vtable__memoryviewslice;
-  __pyx_vtable__memoryviewslice.__pyx_base = *__pyx_vtabptr_memoryview;
-  __pyx_vtable__memoryviewslice.__pyx_base.convert_item_to_object = (PyObject *(*)(struct __pyx_memoryview_obj *, char *))__pyx_memoryviewslice_convert_item_to_object;
-  __pyx_vtable__memoryviewslice.__pyx_base.assign_item_from_object = (PyObject *(*)(struct __pyx_memoryview_obj *, char *, PyObject *))__pyx_memoryviewslice_assign_item_from_object;
-  __pyx_type___pyx_memoryviewslice.tp_base = __pyx_memoryview_type;
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   #endif
-  if ((CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP) && likely(!__pyx_type___pyx_memoryviewslice.tp_dictoffset && __pyx_type___pyx_memoryviewslice.tp_getattro == PyObject_GenericGetAttr)) {
-    __pyx_type___pyx_memoryviewslice.tp_getattro = __Pyx_PyObject_GenericGetAttr;
+  PyObject_GC_UnTrack(o);
+  Py_CLEAR(p->name);
+  #if CYTHON_USE_TYPE_SLOTS || CYTHON_COMPILING_IN_PYPY
+  (*Py_TYPE(o)->tp_free)(o);
+  #else
+  {
+    freefunc tp_free = (freefunc)PyType_GetSlot(Py_TYPE(o), Py_tp_free);
+    if (tp_free) tp_free(o);
   }
-  if (__Pyx_SetVtable(__pyx_type___pyx_memoryviewslice.tp_dict, __pyx_vtabptr__memoryviewslice) < 0) __PYX_ERR(1, 965, __pyx_L1_error)
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-  __Pyx_RefNannyFinishContext();
-  return 0;
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-  __Pyx_RefNannyFinishContext();
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 }
 
-static int __Pyx_modinit_type_import_code(void) {
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-  __Pyx_RefNannySetupContext("__Pyx_modinit_type_import_code", 0);
-  /*--- Type import code ---*/
-  __Pyx_RefNannyFinishContext();
+static int __pyx_tp_traverse_Enum(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_MemviewEnum_obj *p = (struct __pyx_MemviewEnum_obj *)o;
+  if (p->name) {
+    e = (*v)(p->name, a); if (e) return e;
+  }
   return 0;
 }
 
-static int __Pyx_modinit_variable_import_code(void) {
-  __Pyx_RefNannyDeclarations
-  __Pyx_RefNannySetupContext("__Pyx_modinit_variable_import_code", 0);
-  /*--- Variable import code ---*/
-  __Pyx_RefNannyFinishContext();
+static int __pyx_tp_clear_Enum(PyObject *o) {
+  PyObject* tmp;
+  struct __pyx_MemviewEnum_obj *p = (struct __pyx_MemviewEnum_obj *)o;
+  tmp = ((PyObject*)p->name);
+  p->name = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
   return 0;
 }
 
-static int __Pyx_modinit_function_import_code(void) {
-  __Pyx_RefNannyDeclarations
-  __Pyx_RefNannySetupContext("__Pyx_modinit_function_import_code", 0);
-  /*--- Function import code ---*/
-  __Pyx_RefNannyFinishContext();
-  return 0;
+static PyObject *__pyx_specialmethod___pyx_MemviewEnum___repr__(PyObject *self, CYTHON_UNUSED PyObject *arg) {
+  return __pyx_MemviewEnum___repr__(self);
 }
 
-
-#ifndef CYTHON_NO_PYINIT_EXPORT
-#define __Pyx_PyMODINIT_FUNC PyMODINIT_FUNC
-#elif PY_MAJOR_VERSION < 3
-#ifdef __cplusplus
-#define __Pyx_PyMODINIT_FUNC extern "C" void
-#else
-#define __Pyx_PyMODINIT_FUNC void
-#endif
-#else
-#ifdef __cplusplus
-#define __Pyx_PyMODINIT_FUNC extern "C" PyObject *
+static PyMethodDef __pyx_methods_Enum[] = {
+  {"__repr__", (PyCFunction)__pyx_specialmethod___pyx_MemviewEnum___repr__, METH_NOARGS|METH_COEXIST, 0},
+  {"__reduce_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw___pyx_MemviewEnum_1__reduce_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
+  {"__setstate_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw___pyx_MemviewEnum_3__setstate_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
+  {0, 0, 0, 0}
+};
+#if CYTHON_USE_TYPE_SPECS
+static PyType_Slot __pyx_type___pyx_MemviewEnum_slots[] = {
+  {Py_tp_dealloc, (void *)__pyx_tp_dealloc_Enum},
+  {Py_tp_repr, (void *)__pyx_MemviewEnum___repr__},
+  {Py_tp_traverse, (void *)__pyx_tp_traverse_Enum},
+  {Py_tp_clear, (void *)__pyx_tp_clear_Enum},
+  {Py_tp_methods, (void *)__pyx_methods_Enum},
+  {Py_tp_init, (void *)__pyx_MemviewEnum___init__},
+  {Py_tp_new, (void *)__pyx_tp_new_Enum},
+  {0, 0},
+};
+static PyType_Spec __pyx_type___pyx_MemviewEnum_spec = {
+  "voxelize.Enum",
+  sizeof(struct __pyx_MemviewEnum_obj),
+  0,
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC,
+  __pyx_type___pyx_MemviewEnum_slots,
+};
 #else
-#define __Pyx_PyMODINIT_FUNC PyObject *
-#endif
-#endif
-
 
-#if PY_MAJOR_VERSION < 3
-__Pyx_PyMODINIT_FUNC initvoxelize(void) CYTHON_SMALL_CODE; /*proto*/
-__Pyx_PyMODINIT_FUNC initvoxelize(void)
-#else
-__Pyx_PyMODINIT_FUNC PyInit_voxelize(void) CYTHON_SMALL_CODE; /*proto*/
-__Pyx_PyMODINIT_FUNC PyInit_voxelize(void)
-#if CYTHON_PEP489_MULTI_PHASE_INIT
-{
-  return PyModuleDef_Init(&__pyx_moduledef);
-}
-static CYTHON_SMALL_CODE int __Pyx_check_single_interpreter(void) {
-    #if PY_VERSION_HEX >= 0x030700A1
-    static PY_INT64_T main_interpreter_id = -1;
-    PY_INT64_T current_id = PyInterpreterState_GetID(PyThreadState_Get()->interp);
-    if (main_interpreter_id == -1) {
-        main_interpreter_id = current_id;
-        return (unlikely(current_id == -1)) ? -1 : 0;
-    } else if (unlikely(main_interpreter_id != current_id))
-    #else
-    static PyInterpreterState *main_interpreter = NULL;
-    PyInterpreterState *current_interpreter = PyThreadState_Get()->interp;
-    if (!main_interpreter) {
-        main_interpreter = current_interpreter;
-    } else if (unlikely(main_interpreter != current_interpreter))
-    #endif
-    {
-        PyErr_SetString(
-            PyExc_ImportError,
-            "Interpreter change detected - this module can only be loaded into one interpreter per process.");
-        return -1;
-    }
-    return 0;
-}
-static CYTHON_SMALL_CODE int __Pyx_copy_spec_to_module(PyObject *spec, PyObject *moddict, const char* from_name, const char* to_name, int allow_none) {
-    PyObject *value = PyObject_GetAttrString(spec, from_name);
-    int result = 0;
-    if (likely(value)) {
-        if (allow_none || value != Py_None) {
-            result = PyDict_SetItemString(moddict, to_name, value);
-        }
-        Py_DECREF(value);
-    } else if (PyErr_ExceptionMatches(PyExc_AttributeError)) {
-        PyErr_Clear();
-    } else {
-        result = -1;
-    }
-    return result;
-}
-static CYTHON_SMALL_CODE PyObject* __pyx_pymod_create(PyObject *spec, CYTHON_UNUSED PyModuleDef *def) {
-    PyObject *module = NULL, *moddict, *modname;
-    if (__Pyx_check_single_interpreter())
-        return NULL;
-    if (__pyx_m)
-        return __Pyx_NewRef(__pyx_m);
-    modname = PyObject_GetAttrString(spec, "name");
-    if (unlikely(!modname)) goto bad;
-    module = PyModule_NewObject(modname);
-    Py_DECREF(modname);
-    if (unlikely(!module)) goto bad;
-    moddict = PyModule_GetDict(module);
-    if (unlikely(!moddict)) goto bad;
-    if (unlikely(__Pyx_copy_spec_to_module(spec, moddict, "loader", "__loader__", 1) < 0)) goto bad;
-    if (unlikely(__Pyx_copy_spec_to_module(spec, moddict, "origin", "__file__", 1) < 0)) goto bad;
-    if (unlikely(__Pyx_copy_spec_to_module(spec, moddict, "parent", "__package__", 1) < 0)) goto bad;
-    if (unlikely(__Pyx_copy_spec_to_module(spec, moddict, "submodule_search_locations", "__path__", 0) < 0)) goto bad;
-    return module;
-bad:
-    Py_XDECREF(module);
-    return NULL;
-}
-
-
-static CYTHON_SMALL_CODE int __pyx_pymod_exec_voxelize(PyObject *__pyx_pyinit_module)
-#endif
-#endif
-{
-  PyObject *__pyx_t_1 = NULL;
-  static PyThread_type_lock __pyx_t_2[8];
-  int __pyx_lineno = 0;
-  const char *__pyx_filename = NULL;
-  int __pyx_clineno = 0;
-  __Pyx_RefNannyDeclarations
-  #if CYTHON_PEP489_MULTI_PHASE_INIT
-  if (__pyx_m) {
-    if (__pyx_m == __pyx_pyinit_module) return 0;
-    PyErr_SetString(PyExc_RuntimeError, "Module 'voxelize' has already been imported. Re-initialisation is not supported.");
-    return -1;
-  }
-  #elif PY_MAJOR_VERSION >= 3
-  if (__pyx_m) return __Pyx_NewRef(__pyx_m);
-  #endif
-  #if CYTHON_REFNANNY
-__Pyx_RefNanny = __Pyx_RefNannyImportAPI("refnanny");
-if (!__Pyx_RefNanny) {
-  PyErr_Clear();
-  __Pyx_RefNanny = __Pyx_RefNannyImportAPI("Cython.Runtime.refnanny");
-  if (!__Pyx_RefNanny)
-      Py_FatalError("failed to import 'refnanny' module");
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-  if (__Pyx_check_binary_version() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
-  #ifdef __Pxy_PyFrame_Initialize_Offsets
-  __Pxy_PyFrame_Initialize_Offsets();
+static PyTypeObject __pyx_type___pyx_MemviewEnum = {
+  PyVarObject_HEAD_INIT(0, 0)
+  "voxelize.""Enum", /*tp_name*/
+  sizeof(struct __pyx_MemviewEnum_obj), /*tp_basicsize*/
+  0, /*tp_itemsize*/
+  __pyx_tp_dealloc_Enum, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
+  0, /*tp_print*/
   #endif
-  __pyx_empty_tuple = PyTuple_New(0); if (unlikely(!__pyx_empty_tuple)) __PYX_ERR(0, 1, __pyx_L1_error)
-  __pyx_empty_bytes = PyBytes_FromStringAndSize("", 0); if (unlikely(!__pyx_empty_bytes)) __PYX_ERR(0, 1, __pyx_L1_error)
-  __pyx_empty_unicode = PyUnicode_FromStringAndSize("", 0); if (unlikely(!__pyx_empty_unicode)) __PYX_ERR(0, 1, __pyx_L1_error)
-  #ifdef __Pyx_CyFunction_USED
-  if (__pyx_CyFunction_init() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
   #endif
-  #ifdef __Pyx_FusedFunction_USED
-  if (__pyx_FusedFunction_init() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
+  0, /*tp_getattr*/
+  0, /*tp_setattr*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*tp_compare*/
   #endif
-  #ifdef __Pyx_Coroutine_USED
-  if (__pyx_Coroutine_init() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
+  #if PY_MAJOR_VERSION >= 3
+  0, /*tp_as_async*/
   #endif
-  #ifdef __Pyx_Generator_USED
-  if (__pyx_Generator_init() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
+  __pyx_MemviewEnum___repr__, /*tp_repr*/
+  0, /*tp_as_number*/
+  0, /*tp_as_sequence*/
+  0, /*tp_as_mapping*/
+  0, /*tp_hash*/
+  0, /*tp_call*/
+  0, /*tp_str*/
+  0, /*tp_getattro*/
+  0, /*tp_setattro*/
+  0, /*tp_as_buffer*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  0, /*tp_doc*/
+  __pyx_tp_traverse_Enum, /*tp_traverse*/
+  __pyx_tp_clear_Enum, /*tp_clear*/
+  0, /*tp_richcompare*/
+  0, /*tp_weaklistoffset*/
+  0, /*tp_iter*/
+  0, /*tp_iternext*/
+  __pyx_methods_Enum, /*tp_methods*/
+  0, /*tp_members*/
+  0, /*tp_getset*/
+  0, /*tp_base*/
+  0, /*tp_dict*/
+  0, /*tp_descr_get*/
+  0, /*tp_descr_set*/
+  #if !CYTHON_USE_TYPE_SPECS
+  0, /*tp_dictoffset*/
   #endif
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+  0, /*tp_alloc*/
+  __pyx_tp_new_Enum, /*tp_new*/
+  0, /*tp_free*/
+  0, /*tp_is_gc*/
+  0, /*tp_bases*/
+  0, /*tp_mro*/
+  0, /*tp_cache*/
+  0, /*tp_subclasses*/
+  0, /*tp_weaklist*/
+  0, /*tp_del*/
+  0, /*tp_version_tag*/
+  #if PY_VERSION_HEX >= 0x030400a1
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-  PyEval_InitThreads();
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   #endif
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-  __pyx_m = PyModule_Create(&__pyx_moduledef);
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   #endif
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+  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000 && PY_VERSION_HEX < 0x030a0000
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   #endif
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+  struct __pyx_memoryview_obj *p;
+  PyObject *o;
+  #if CYTHON_COMPILING_IN_LIMITED_API
+  allocfunc alloc_func = (allocfunc)PyType_GetSlot(t, Py_tp_alloc);
+  o = alloc_func(t, 0);
+  #else
+  if (likely(!__Pyx_PyType_HasFeature(t, Py_TPFLAGS_IS_ABSTRACT))) {
+    o = (*t->tp_alloc)(t, 0);
+  } else {
+    o = (PyObject *) PyBaseObject_Type.tp_new(t, __pyx_empty_tuple, 0);
   }
-  #if PY_MAJOR_VERSION >= 3
-  {
-    PyObject *modules = PyImport_GetModuleDict(); if (unlikely(!modules)) __PYX_ERR(0, 1, __pyx_L1_error)
-    if (!PyDict_GetItemString(modules, "voxelize")) {
-      if (unlikely(PyDict_SetItemString(modules, "voxelize", __pyx_m) < 0)) __PYX_ERR(0, 1, __pyx_L1_error)
+  if (unlikely(!o)) return 0;
+  #endif
+  p = ((struct __pyx_memoryview_obj *)o);
+  p->__pyx_vtab = __pyx_vtabptr_memoryview;
+  p->obj = Py_None; Py_INCREF(Py_None);
+  p->_size = Py_None; Py_INCREF(Py_None);
+  p->_array_interface = Py_None; Py_INCREF(Py_None);
+  p->view.obj = NULL;
+  if (unlikely(__pyx_memoryview___cinit__(o, a, k) < 0)) goto bad;
+  return o;
+  bad:
+  Py_DECREF(o); o = 0;
+  return NULL;
+}
+
+static void __pyx_tp_dealloc_memoryview(PyObject *o) {
+  struct __pyx_memoryview_obj *p = (struct __pyx_memoryview_obj *)o;
+  #if CYTHON_USE_TP_FINALIZE
+  if (unlikely((PY_VERSION_HEX >= 0x03080000 || __Pyx_PyType_HasFeature(Py_TYPE(o), Py_TPFLAGS_HAVE_FINALIZE)) && __Pyx_PyObject_GetSlot(o, tp_finalize, destructor)) && !__Pyx_PyObject_GC_IsFinalized(o)) {
+    if (__Pyx_PyObject_GetSlot(o, tp_dealloc, destructor) == __pyx_tp_dealloc_memoryview) {
+      if (PyObject_CallFinalizerFromDealloc(o)) return;
     }
   }
   #endif
-  /*--- Builtin init code ---*/
-  if (__Pyx_InitCachedBuiltins() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
-  /*--- Constants init code ---*/
-  if (__Pyx_InitCachedConstants() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
-  /*--- Global type/function init code ---*/
-  (void)__Pyx_modinit_global_init_code();
-  (void)__Pyx_modinit_variable_export_code();
-  (void)__Pyx_modinit_function_export_code();
-  if (unlikely(__Pyx_modinit_type_init_code() < 0)) __PYX_ERR(0, 1, __pyx_L1_error)
-  (void)__Pyx_modinit_type_import_code();
-  (void)__Pyx_modinit_variable_import_code();
-  (void)__Pyx_modinit_function_import_code();
-  /*--- Execution code ---*/
-  #if defined(__Pyx_Generator_USED) || defined(__Pyx_Coroutine_USED)
-  if (__Pyx_patch_abc() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
+  PyObject_GC_UnTrack(o);
+  {
+    PyObject *etype, *eval, *etb;
+    PyErr_Fetch(&etype, &eval, &etb);
+    __Pyx_SET_REFCNT(o, Py_REFCNT(o) + 1);
+    __pyx_memoryview___dealloc__(o);
+    __Pyx_SET_REFCNT(o, Py_REFCNT(o) - 1);
+    PyErr_Restore(etype, eval, etb);
+  }
+  Py_CLEAR(p->obj);
+  Py_CLEAR(p->_size);
+  Py_CLEAR(p->_array_interface);
+  #if CYTHON_USE_TYPE_SLOTS || CYTHON_COMPILING_IN_PYPY
+  (*Py_TYPE(o)->tp_free)(o);
+  #else
+  {
+    freefunc tp_free = (freefunc)PyType_GetSlot(Py_TYPE(o), Py_tp_free);
+    if (tp_free) tp_free(o);
+  }
   #endif
+}
 
-  /* "voxelize.pyx":1
- * cimport cython             # <<<<<<<<<<<<<<
- * from cython.view cimport array as cvarray
- * from libc.math cimport ceil, floor
- */
-  __pyx_t_1 = __Pyx_PyDict_NewPresized(0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 1, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_test, __pyx_t_1) < 0) __PYX_ERR(0, 1, __pyx_L1_error)
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-
-  /* "View.MemoryView":209
- *         info.obj = self
- * 
- *     __pyx_getbuffer = capsule(<void *> &__pyx_array_getbuffer, "getbuffer(obj, view, flags)")             # <<<<<<<<<<<<<<
- * 
- *     def __dealloc__(array self):
- */
-  __pyx_t_1 = __pyx_capsule_create(((void *)(&__pyx_array_getbuffer)), ((char *)"getbuffer(obj, view, flags)")); if (unlikely(!__pyx_t_1)) __PYX_ERR(1, 209, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyDict_SetItem((PyObject *)__pyx_array_type->tp_dict, __pyx_n_s_pyx_getbuffer, __pyx_t_1) < 0) __PYX_ERR(1, 209, __pyx_L1_error)
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  PyType_Modified(__pyx_array_type);
+static int __pyx_tp_traverse_memoryview(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_memoryview_obj *p = (struct __pyx_memoryview_obj *)o;
+  if (p->obj) {
+    e = (*v)(p->obj, a); if (e) return e;
+  }
+  if (p->_size) {
+    e = (*v)(p->_size, a); if (e) return e;
+  }
+  if (p->_array_interface) {
+    e = (*v)(p->_array_interface, a); if (e) return e;
+  }
+  if (p->view.obj) {
+    e = (*v)(p->view.obj, a); if (e) return e;
+  }
+  return 0;
+}
 
-  /* "View.MemoryView":286
- *         return self.name
- * 
- * cdef generic = Enum("<strided and direct or indirect>")             # <<<<<<<<<<<<<<
- * cdef strided = Enum("<strided and direct>") # default
- * cdef indirect = Enum("<strided and indirect>")
- */
-  __pyx_t_1 = __Pyx_PyObject_Call(((PyObject *)__pyx_MemviewEnum_type), __pyx_tuple__19, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(1, 286, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_1);
-  __Pyx_XGOTREF(generic);
-  __Pyx_DECREF_SET(generic, __pyx_t_1);
-  __Pyx_GIVEREF(__pyx_t_1);
-  __pyx_t_1 = 0;
+static int __pyx_tp_clear_memoryview(PyObject *o) {
+  PyObject* tmp;
+  struct __pyx_memoryview_obj *p = (struct __pyx_memoryview_obj *)o;
+  tmp = ((PyObject*)p->obj);
+  p->obj = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->_size);
+  p->_size = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->_array_interface);
+  p->_array_interface = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  Py_CLEAR(p->view.obj);
+  return 0;
+}
+static PyObject *__pyx_sq_item_memoryview(PyObject *o, Py_ssize_t i) {
+  PyObject *r;
+  PyObject *x = PyInt_FromSsize_t(i); if(!x) return 0;
+  r = Py_TYPE(o)->tp_as_mapping->mp_subscript(o, x);
+  Py_DECREF(x);
+  return r;
+}
 
-  /* "View.MemoryView":287
- * 
- * cdef generic = Enum("<strided and direct or indirect>")
- * cdef strided = Enum("<strided and direct>") # default             # <<<<<<<<<<<<<<
- * cdef indirect = Enum("<strided and indirect>")
- * 
- */
-  __pyx_t_1 = __Pyx_PyObject_Call(((PyObject *)__pyx_MemviewEnum_type), __pyx_tuple__20, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(1, 287, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_1);
-  __Pyx_XGOTREF(strided);
-  __Pyx_DECREF_SET(strided, __pyx_t_1);
-  __Pyx_GIVEREF(__pyx_t_1);
-  __pyx_t_1 = 0;
+static int __pyx_mp_ass_subscript_memoryview(PyObject *o, PyObject *i, PyObject *v) {
+  if (v) {
+    return __pyx_memoryview___setitem__(o, i, v);
+  }
+  else {
+    __Pyx_TypeName o_type_name;
+    o_type_name = __Pyx_PyType_GetName(Py_TYPE(o));
+    PyErr_Format(PyExc_NotImplementedError,
+      "Subscript deletion not supported by " __Pyx_FMT_TYPENAME, o_type_name);
+    __Pyx_DECREF_TypeName(o_type_name);
+    return -1;
+  }
+}
 
-  /* "View.MemoryView":288
- * cdef generic = Enum("<strided and direct or indirect>")
- * cdef strided = Enum("<strided and direct>") # default
- * cdef indirect = Enum("<strided and indirect>")             # <<<<<<<<<<<<<<
- * 
- * 
- */
-  __pyx_t_1 = __Pyx_PyObject_Call(((PyObject *)__pyx_MemviewEnum_type), __pyx_tuple__21, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(1, 288, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_1);
-  __Pyx_XGOTREF(indirect);
-  __Pyx_DECREF_SET(indirect, __pyx_t_1);
-  __Pyx_GIVEREF(__pyx_t_1);
-  __pyx_t_1 = 0;
+static PyObject *__pyx_getprop___pyx_memoryview_T(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_15View_dot_MemoryView_10memoryview_1T_1__get__(o);
+}
 
-  /* "View.MemoryView":291
- * 
- * 
- * cdef contiguous = Enum("<contiguous and direct>")             # <<<<<<<<<<<<<<
- * cdef indirect_contiguous = Enum("<contiguous and indirect>")
- * 
- */
-  __pyx_t_1 = __Pyx_PyObject_Call(((PyObject *)__pyx_MemviewEnum_type), __pyx_tuple__22, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(1, 291, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_1);
-  __Pyx_XGOTREF(contiguous);
-  __Pyx_DECREF_SET(contiguous, __pyx_t_1);
-  __Pyx_GIVEREF(__pyx_t_1);
-  __pyx_t_1 = 0;
+static PyObject *__pyx_getprop___pyx_memoryview_base(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_15View_dot_MemoryView_10memoryview_4base_1__get__(o);
+}
 
-  /* "View.MemoryView":292
- * 
- * cdef contiguous = Enum("<contiguous and direct>")
- * cdef indirect_contiguous = Enum("<contiguous and indirect>")             # <<<<<<<<<<<<<<
- * 
- * 
- */
-  __pyx_t_1 = __Pyx_PyObject_Call(((PyObject *)__pyx_MemviewEnum_type), __pyx_tuple__23, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(1, 292, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_1);
-  __Pyx_XGOTREF(indirect_contiguous);
-  __Pyx_DECREF_SET(indirect_contiguous, __pyx_t_1);
-  __Pyx_GIVEREF(__pyx_t_1);
-  __pyx_t_1 = 0;
+static PyObject *__pyx_getprop___pyx_memoryview_shape(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_15View_dot_MemoryView_10memoryview_5shape_1__get__(o);
+}
 
-  /* "View.MemoryView":316
- * 
- * DEF THREAD_LOCKS_PREALLOCATED = 8
- * cdef int __pyx_memoryview_thread_locks_used = 0             # <<<<<<<<<<<<<<
- * cdef PyThread_type_lock[THREAD_LOCKS_PREALLOCATED] __pyx_memoryview_thread_locks = [
- *     PyThread_allocate_lock(),
- */
-  __pyx_memoryview_thread_locks_used = 0;
+static PyObject *__pyx_getprop___pyx_memoryview_strides(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_15View_dot_MemoryView_10memoryview_7strides_1__get__(o);
+}
 
-  /* "View.MemoryView":317
- * DEF THREAD_LOCKS_PREALLOCATED = 8
- * cdef int __pyx_memoryview_thread_locks_used = 0
- * cdef PyThread_type_lock[THREAD_LOCKS_PREALLOCATED] __pyx_memoryview_thread_locks = [             # <<<<<<<<<<<<<<
- *     PyThread_allocate_lock(),
- *     PyThread_allocate_lock(),
- */
-  __pyx_t_2[0] = PyThread_allocate_lock();
-  __pyx_t_2[1] = PyThread_allocate_lock();
-  __pyx_t_2[2] = PyThread_allocate_lock();
-  __pyx_t_2[3] = PyThread_allocate_lock();
-  __pyx_t_2[4] = PyThread_allocate_lock();
-  __pyx_t_2[5] = PyThread_allocate_lock();
-  __pyx_t_2[6] = PyThread_allocate_lock();
-  __pyx_t_2[7] = PyThread_allocate_lock();
-  memcpy(&(__pyx_memoryview_thread_locks[0]), __pyx_t_2, sizeof(__pyx_memoryview_thread_locks[0]) * (8));
+static PyObject *__pyx_getprop___pyx_memoryview_suboffsets(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_15View_dot_MemoryView_10memoryview_10suboffsets_1__get__(o);
+}
 
-  /* "View.MemoryView":549
- *         info.obj = self
- * 
- *     __pyx_getbuffer = capsule(<void *> &__pyx_memoryview_getbuffer, "getbuffer(obj, view, flags)")             # <<<<<<<<<<<<<<
- * 
- * 
- */
-  __pyx_t_1 = __pyx_capsule_create(((void *)(&__pyx_memoryview_getbuffer)), ((char *)"getbuffer(obj, view, flags)")); if (unlikely(!__pyx_t_1)) __PYX_ERR(1, 549, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyDict_SetItem((PyObject *)__pyx_memoryview_type->tp_dict, __pyx_n_s_pyx_getbuffer, __pyx_t_1) < 0) __PYX_ERR(1, 549, __pyx_L1_error)
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  PyType_Modified(__pyx_memoryview_type);
+static PyObject *__pyx_getprop___pyx_memoryview_ndim(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_15View_dot_MemoryView_10memoryview_4ndim_1__get__(o);
+}
 
-  /* "View.MemoryView":995
- *         return self.from_object
- * 
- *     __pyx_getbuffer = capsule(<void *> &__pyx_memoryview_getbuffer, "getbuffer(obj, view, flags)")             # <<<<<<<<<<<<<<
- * 
- * 
- */
-  __pyx_t_1 = __pyx_capsule_create(((void *)(&__pyx_memoryview_getbuffer)), ((char *)"getbuffer(obj, view, flags)")); if (unlikely(!__pyx_t_1)) __PYX_ERR(1, 995, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyDict_SetItem((PyObject *)__pyx_memoryviewslice_type->tp_dict, __pyx_n_s_pyx_getbuffer, __pyx_t_1) < 0) __PYX_ERR(1, 995, __pyx_L1_error)
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  PyType_Modified(__pyx_memoryviewslice_type);
+static PyObject *__pyx_getprop___pyx_memoryview_itemsize(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_15View_dot_MemoryView_10memoryview_8itemsize_1__get__(o);
+}
 
-  /* "(tree fragment)":1
- * def __pyx_unpickle_Enum(__pyx_type, long __pyx_checksum, __pyx_state):             # <<<<<<<<<<<<<<
- *     cdef object __pyx_PickleError
- *     cdef object __pyx_result
- */
-  __pyx_t_1 = PyCFunction_NewEx(&__pyx_mdef_15View_dot_MemoryView_1__pyx_unpickle_Enum, NULL, __pyx_n_s_View_MemoryView); if (unlikely(!__pyx_t_1)) __PYX_ERR(1, 1, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_pyx_unpickle_Enum, __pyx_t_1) < 0) __PYX_ERR(1, 1, __pyx_L1_error)
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+static PyObject *__pyx_getprop___pyx_memoryview_nbytes(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_15View_dot_MemoryView_10memoryview_6nbytes_1__get__(o);
+}
 
-  /* "(tree fragment)":11
- *         __pyx_unpickle_Enum__set_state(<Enum> __pyx_result, __pyx_state)
- *     return __pyx_result
- * cdef __pyx_unpickle_Enum__set_state(Enum __pyx_result, tuple __pyx_state):             # <<<<<<<<<<<<<<
- *     __pyx_result.name = __pyx_state[0]
- *     if len(__pyx_state) > 1 and hasattr(__pyx_result, '__dict__'):
- */
+static PyObject *__pyx_getprop___pyx_memoryview_size(PyObject *o, CYTHON_UNUSED void *x) {
+  return __pyx_pw_15View_dot_MemoryView_10memoryview_4size_1__get__(o);
+}
 
-  /*--- Wrapped vars code ---*/
+static PyObject *__pyx_specialmethod___pyx_memoryview___repr__(PyObject *self, CYTHON_UNUSED PyObject *arg) {
+  return __pyx_memoryview___repr__(self);
+}
 
-  goto __pyx_L0;
-  __pyx_L1_error:;
-  __Pyx_XDECREF(__pyx_t_1);
-  if (__pyx_m) {
-    if (__pyx_d) {
-      __Pyx_AddTraceback("init voxelize", __pyx_clineno, __pyx_lineno, __pyx_filename);
+static PyMethodDef __pyx_methods_memoryview[] = {
+  {"__repr__", (PyCFunction)__pyx_specialmethod___pyx_memoryview___repr__, METH_NOARGS|METH_COEXIST, 0},
+  {"is_c_contig", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_memoryview_is_c_contig, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
+  {"is_f_contig", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_memoryview_is_f_contig, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
+  {"copy", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_memoryview_copy, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
+  {"copy_fortran", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_memoryview_copy_fortran, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
+  {"__reduce_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw___pyx_memoryview_1__reduce_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
+  {"__setstate_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw___pyx_memoryview_3__setstate_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
+  {0, 0, 0, 0}
+};
+
+static struct PyGetSetDef __pyx_getsets_memoryview[] = {
+  {(char *)"T", __pyx_getprop___pyx_memoryview_T, 0, (char *)0, 0},
+  {(char *)"base", __pyx_getprop___pyx_memoryview_base, 0, (char *)0, 0},
+  {(char *)"shape", __pyx_getprop___pyx_memoryview_shape, 0, (char *)0, 0},
+  {(char *)"strides", __pyx_getprop___pyx_memoryview_strides, 0, (char *)0, 0},
+  {(char *)"suboffsets", __pyx_getprop___pyx_memoryview_suboffsets, 0, (char *)0, 0},
+  {(char *)"ndim", __pyx_getprop___pyx_memoryview_ndim, 0, (char *)0, 0},
+  {(char *)"itemsize", __pyx_getprop___pyx_memoryview_itemsize, 0, (char *)0, 0},
+  {(char *)"nbytes", __pyx_getprop___pyx_memoryview_nbytes, 0, (char *)0, 0},
+  {(char *)"size", __pyx_getprop___pyx_memoryview_size, 0, (char *)0, 0},
+  {0, 0, 0, 0, 0}
+};
+#if CYTHON_USE_TYPE_SPECS
+#if !CYTHON_COMPILING_IN_LIMITED_API
+
+static PyBufferProcs __pyx_tp_as_buffer_memoryview = {
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getreadbuffer*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getwritebuffer*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getsegcount*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getcharbuffer*/
+  #endif
+  __pyx_memoryview_getbuffer, /*bf_getbuffer*/
+  0, /*bf_releasebuffer*/
+};
+#endif
+static PyType_Slot __pyx_type___pyx_memoryview_slots[] = {
+  {Py_tp_dealloc, (void *)__pyx_tp_dealloc_memoryview},
+  {Py_tp_repr, (void *)__pyx_memoryview___repr__},
+  {Py_sq_length, (void *)__pyx_memoryview___len__},
+  {Py_sq_item, (void *)__pyx_sq_item_memoryview},
+  {Py_mp_length, (void *)__pyx_memoryview___len__},
+  {Py_mp_subscript, (void *)__pyx_memoryview___getitem__},
+  {Py_mp_ass_subscript, (void *)__pyx_mp_ass_subscript_memoryview},
+  {Py_tp_str, (void *)__pyx_memoryview___str__},
+  #if defined(Py_bf_getbuffer)
+  {Py_bf_getbuffer, (void *)__pyx_memoryview_getbuffer},
+  #endif
+  {Py_tp_traverse, (void *)__pyx_tp_traverse_memoryview},
+  {Py_tp_clear, (void *)__pyx_tp_clear_memoryview},
+  {Py_tp_methods, (void *)__pyx_methods_memoryview},
+  {Py_tp_getset, (void *)__pyx_getsets_memoryview},
+  {Py_tp_new, (void *)__pyx_tp_new_memoryview},
+  {0, 0},
+};
+static PyType_Spec __pyx_type___pyx_memoryview_spec = {
+  "voxelize.memoryview",
+  sizeof(struct __pyx_memoryview_obj),
+  0,
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC,
+  __pyx_type___pyx_memoryview_slots,
+};
+#else
+
+static PySequenceMethods __pyx_tp_as_sequence_memoryview = {
+  __pyx_memoryview___len__, /*sq_length*/
+  0, /*sq_concat*/
+  0, /*sq_repeat*/
+  __pyx_sq_item_memoryview, /*sq_item*/
+  0, /*sq_slice*/
+  0, /*sq_ass_item*/
+  0, /*sq_ass_slice*/
+  0, /*sq_contains*/
+  0, /*sq_inplace_concat*/
+  0, /*sq_inplace_repeat*/
+};
+
+static PyMappingMethods __pyx_tp_as_mapping_memoryview = {
+  __pyx_memoryview___len__, /*mp_length*/
+  __pyx_memoryview___getitem__, /*mp_subscript*/
+  __pyx_mp_ass_subscript_memoryview, /*mp_ass_subscript*/
+};
+
+static PyBufferProcs __pyx_tp_as_buffer_memoryview = {
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getreadbuffer*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getwritebuffer*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getsegcount*/
+  #endif
+  #if PY_MAJOR_VERSION < 3
+  0, /*bf_getcharbuffer*/
+  #endif
+  __pyx_memoryview_getbuffer, /*bf_getbuffer*/
+  0, /*bf_releasebuffer*/
+};
+
+static PyTypeObject __pyx_type___pyx_memoryview = {
+  PyVarObject_HEAD_INIT(0, 0)
+  "voxelize.""memoryview", /*tp_name*/
+  sizeof(struct __pyx_memoryview_obj), /*tp_basicsize*/
+  0, /*tp_itemsize*/
+  __pyx_tp_dealloc_memoryview, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
+  0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
+  0, /*tp_getattr*/
+  0, /*tp_setattr*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*tp_compare*/
+  #endif
+  #if PY_MAJOR_VERSION >= 3
+  0, /*tp_as_async*/
+  #endif
+  __pyx_memoryview___repr__, /*tp_repr*/
+  0, /*tp_as_number*/
+  &__pyx_tp_as_sequence_memoryview, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping_memoryview, /*tp_as_mapping*/
+  0, /*tp_hash*/
+  0, /*tp_call*/
+  __pyx_memoryview___str__, /*tp_str*/
+  0, /*tp_getattro*/
+  0, /*tp_setattro*/
+  &__pyx_tp_as_buffer_memoryview, /*tp_as_buffer*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  0, /*tp_doc*/
+  __pyx_tp_traverse_memoryview, /*tp_traverse*/
+  __pyx_tp_clear_memoryview, /*tp_clear*/
+  0, /*tp_richcompare*/
+  0, /*tp_weaklistoffset*/
+  0, /*tp_iter*/
+  0, /*tp_iternext*/
+  __pyx_methods_memoryview, /*tp_methods*/
+  0, /*tp_members*/
+  __pyx_getsets_memoryview, /*tp_getset*/
+  0, /*tp_base*/
+  0, /*tp_dict*/
+  0, /*tp_descr_get*/
+  0, /*tp_descr_set*/
+  #if !CYTHON_USE_TYPE_SPECS
+  0, /*tp_dictoffset*/
+  #endif
+  0, /*tp_init*/
+  0, /*tp_alloc*/
+  __pyx_tp_new_memoryview, /*tp_new*/
+  0, /*tp_free*/
+  0, /*tp_is_gc*/
+  0, /*tp_bases*/
+  0, /*tp_mro*/
+  0, /*tp_cache*/
+  0, /*tp_subclasses*/
+  0, /*tp_weaklist*/
+  0, /*tp_del*/
+  0, /*tp_version_tag*/
+  #if PY_VERSION_HEX >= 0x030400a1
+  #if CYTHON_USE_TP_FINALIZE
+  0, /*tp_finalize*/
+  #else
+  NULL, /*tp_finalize*/
+  #endif
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
+  0, /*tp_vectorcall*/
+  #endif
+  #if __PYX_NEED_TP_PRINT_SLOT == 1
+  0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030C0000
+  0, /*tp_watched*/
+  #endif
+  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000 && PY_VERSION_HEX < 0x030a0000
+  0, /*tp_pypy_flags*/
+  #endif
+};
+#endif
+static struct __pyx_vtabstruct__memoryviewslice __pyx_vtable__memoryviewslice;
+
+static PyObject *__pyx_tp_new__memoryviewslice(PyTypeObject *t, PyObject *a, PyObject *k) {
+  struct __pyx_memoryviewslice_obj *p;
+  PyObject *o = __pyx_tp_new_memoryview(t, a, k);
+  if (unlikely(!o)) return 0;
+  p = ((struct __pyx_memoryviewslice_obj *)o);
+  p->__pyx_base.__pyx_vtab = (struct __pyx_vtabstruct_memoryview*)__pyx_vtabptr__memoryviewslice;
+  p->from_object = Py_None; Py_INCREF(Py_None);
+  p->from_slice.memview = NULL;
+  return o;
+}
+
+static void __pyx_tp_dealloc__memoryviewslice(PyObject *o) {
+  struct __pyx_memoryviewslice_obj *p = (struct __pyx_memoryviewslice_obj *)o;
+  #if CYTHON_USE_TP_FINALIZE
+  if (unlikely((PY_VERSION_HEX >= 0x03080000 || __Pyx_PyType_HasFeature(Py_TYPE(o), Py_TPFLAGS_HAVE_FINALIZE)) && __Pyx_PyObject_GetSlot(o, tp_finalize, destructor)) && !__Pyx_PyObject_GC_IsFinalized(o)) {
+    if (__Pyx_PyObject_GetSlot(o, tp_dealloc, destructor) == __pyx_tp_dealloc__memoryviewslice) {
+      if (PyObject_CallFinalizerFromDealloc(o)) return;
+    }
+  }
+  #endif
+  PyObject_GC_UnTrack(o);
+  {
+    PyObject *etype, *eval, *etb;
+    PyErr_Fetch(&etype, &eval, &etb);
+    __Pyx_SET_REFCNT(o, Py_REFCNT(o) + 1);
+    __pyx_memoryviewslice___dealloc__(o);
+    __Pyx_SET_REFCNT(o, Py_REFCNT(o) - 1);
+    PyErr_Restore(etype, eval, etb);
+  }
+  Py_CLEAR(p->from_object);
+  PyObject_GC_Track(o);
+  __pyx_tp_dealloc_memoryview(o);
+}
+
+static int __pyx_tp_traverse__memoryviewslice(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_memoryviewslice_obj *p = (struct __pyx_memoryviewslice_obj *)o;
+  e = __pyx_tp_traverse_memoryview(o, v, a); if (e) return e;
+  if (p->from_object) {
+    e = (*v)(p->from_object, a); if (e) return e;
+  }
+  return 0;
+}
+
+static int __pyx_tp_clear__memoryviewslice(PyObject *o) {
+  PyObject* tmp;
+  struct __pyx_memoryviewslice_obj *p = (struct __pyx_memoryviewslice_obj *)o;
+  __pyx_tp_clear_memoryview(o);
+  tmp = ((PyObject*)p->from_object);
+  p->from_object = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  __PYX_XCLEAR_MEMVIEW(&p->from_slice, 1);
+  return 0;
+}
+
+static PyMethodDef __pyx_methods__memoryviewslice[] = {
+  {"__reduce_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw___pyx_memoryviewslice_1__reduce_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
+  {"__setstate_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw___pyx_memoryviewslice_3__setstate_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
+  {0, 0, 0, 0}
+};
+#if CYTHON_USE_TYPE_SPECS
+static PyType_Slot __pyx_type___pyx_memoryviewslice_slots[] = {
+  {Py_tp_dealloc, (void *)__pyx_tp_dealloc__memoryviewslice},
+  {Py_tp_doc, (void *)PyDoc_STR("Internal class for passing memoryview slices to Python")},
+  {Py_tp_traverse, (void *)__pyx_tp_traverse__memoryviewslice},
+  {Py_tp_clear, (void *)__pyx_tp_clear__memoryviewslice},
+  {Py_tp_methods, (void *)__pyx_methods__memoryviewslice},
+  {Py_tp_new, (void *)__pyx_tp_new__memoryviewslice},
+  {0, 0},
+};
+static PyType_Spec __pyx_type___pyx_memoryviewslice_spec = {
+  "voxelize._memoryviewslice",
+  sizeof(struct __pyx_memoryviewslice_obj),
+  0,
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC|Py_TPFLAGS_SEQUENCE,
+  __pyx_type___pyx_memoryviewslice_slots,
+};
+#else
+
+static PyTypeObject __pyx_type___pyx_memoryviewslice = {
+  PyVarObject_HEAD_INIT(0, 0)
+  "voxelize.""_memoryviewslice", /*tp_name*/
+  sizeof(struct __pyx_memoryviewslice_obj), /*tp_basicsize*/
+  0, /*tp_itemsize*/
+  __pyx_tp_dealloc__memoryviewslice, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
+  0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
+  0, /*tp_getattr*/
+  0, /*tp_setattr*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*tp_compare*/
+  #endif
+  #if PY_MAJOR_VERSION >= 3
+  0, /*tp_as_async*/
+  #endif
+  #if CYTHON_COMPILING_IN_PYPY || 0
+  __pyx_memoryview___repr__, /*tp_repr*/
+  #else
+  0, /*tp_repr*/
+  #endif
+  0, /*tp_as_number*/
+  0, /*tp_as_sequence*/
+  0, /*tp_as_mapping*/
+  0, /*tp_hash*/
+  0, /*tp_call*/
+  #if CYTHON_COMPILING_IN_PYPY || 0
+  __pyx_memoryview___str__, /*tp_str*/
+  #else
+  0, /*tp_str*/
+  #endif
+  0, /*tp_getattro*/
+  0, /*tp_setattro*/
+  0, /*tp_as_buffer*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC|Py_TPFLAGS_SEQUENCE, /*tp_flags*/
+  PyDoc_STR("Internal class for passing memoryview slices to Python"), /*tp_doc*/
+  __pyx_tp_traverse__memoryviewslice, /*tp_traverse*/
+  __pyx_tp_clear__memoryviewslice, /*tp_clear*/
+  0, /*tp_richcompare*/
+  0, /*tp_weaklistoffset*/
+  0, /*tp_iter*/
+  0, /*tp_iternext*/
+  __pyx_methods__memoryviewslice, /*tp_methods*/
+  0, /*tp_members*/
+  0, /*tp_getset*/
+  0, /*tp_base*/
+  0, /*tp_dict*/
+  0, /*tp_descr_get*/
+  0, /*tp_descr_set*/
+  #if !CYTHON_USE_TYPE_SPECS
+  0, /*tp_dictoffset*/
+  #endif
+  0, /*tp_init*/
+  0, /*tp_alloc*/
+  __pyx_tp_new__memoryviewslice, /*tp_new*/
+  0, /*tp_free*/
+  0, /*tp_is_gc*/
+  0, /*tp_bases*/
+  0, /*tp_mro*/
+  0, /*tp_cache*/
+  0, /*tp_subclasses*/
+  0, /*tp_weaklist*/
+  0, /*tp_del*/
+  0, /*tp_version_tag*/
+  #if PY_VERSION_HEX >= 0x030400a1
+  #if CYTHON_USE_TP_FINALIZE
+  0, /*tp_finalize*/
+  #else
+  NULL, /*tp_finalize*/
+  #endif
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
+  0, /*tp_vectorcall*/
+  #endif
+  #if __PYX_NEED_TP_PRINT_SLOT == 1
+  0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030C0000
+  0, /*tp_watched*/
+  #endif
+  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000 && PY_VERSION_HEX < 0x030a0000
+  0, /*tp_pypy_flags*/
+  #endif
+};
+#endif
+
+static PyMethodDef __pyx_methods[] = {
+  {0, 0, 0, 0}
+};
+#ifndef CYTHON_SMALL_CODE
+#if defined(__clang__)
+    #define CYTHON_SMALL_CODE
+#elif defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))
+    #define CYTHON_SMALL_CODE __attribute__((cold))
+#else
+    #define CYTHON_SMALL_CODE
+#endif
+#endif
+/* #### Code section: pystring_table ### */
+
+static int __Pyx_CreateStringTabAndInitStrings(void) {
+  __Pyx_StringTabEntry __pyx_string_tab[] = {
+    {&__pyx_kp_u_, __pyx_k_, sizeof(__pyx_k_), 0, 1, 0, 0},
+    {&__pyx_n_s_ASCII, __pyx_k_ASCII, sizeof(__pyx_k_ASCII), 0, 0, 1, 1},
+    {&__pyx_kp_s_All_dimensions_preceding_dimensi, __pyx_k_All_dimensions_preceding_dimensi, sizeof(__pyx_k_All_dimensions_preceding_dimensi), 0, 0, 1, 0},
+    {&__pyx_n_s_AssertionError, __pyx_k_AssertionError, sizeof(__pyx_k_AssertionError), 0, 0, 1, 1},
+    {&__pyx_kp_s_Buffer_view_does_not_expose_stri, __pyx_k_Buffer_view_does_not_expose_stri, sizeof(__pyx_k_Buffer_view_does_not_expose_stri), 0, 0, 1, 0},
+    {&__pyx_kp_s_Can_only_create_a_buffer_that_is, __pyx_k_Can_only_create_a_buffer_that_is, sizeof(__pyx_k_Can_only_create_a_buffer_that_is), 0, 0, 1, 0},
+    {&__pyx_kp_s_Cannot_assign_to_read_only_memor, __pyx_k_Cannot_assign_to_read_only_memor, sizeof(__pyx_k_Cannot_assign_to_read_only_memor), 0, 0, 1, 0},
+    {&__pyx_kp_s_Cannot_create_writable_memory_vi, __pyx_k_Cannot_create_writable_memory_vi, sizeof(__pyx_k_Cannot_create_writable_memory_vi), 0, 0, 1, 0},
+    {&__pyx_kp_u_Cannot_index_with_type, __pyx_k_Cannot_index_with_type, sizeof(__pyx_k_Cannot_index_with_type), 0, 1, 0, 0},
+    {&__pyx_kp_s_Cannot_transpose_memoryview_with, __pyx_k_Cannot_transpose_memoryview_with, sizeof(__pyx_k_Cannot_transpose_memoryview_with), 0, 0, 1, 0},
+    {&__pyx_kp_s_Dimension_d_is_not_direct, __pyx_k_Dimension_d_is_not_direct, sizeof(__pyx_k_Dimension_d_is_not_direct), 0, 0, 1, 0},
+    {&__pyx_n_s_Ellipsis, __pyx_k_Ellipsis, sizeof(__pyx_k_Ellipsis), 0, 0, 1, 1},
+    {&__pyx_kp_s_Empty_shape_tuple_for_cython_arr, __pyx_k_Empty_shape_tuple_for_cython_arr, sizeof(__pyx_k_Empty_shape_tuple_for_cython_arr), 0, 0, 1, 0},
+    {&__pyx_kp_s_Incompatible_checksums_0x_x_vs_0, __pyx_k_Incompatible_checksums_0x_x_vs_0, sizeof(__pyx_k_Incompatible_checksums_0x_x_vs_0), 0, 0, 1, 0},
+    {&__pyx_n_s_IndexError, __pyx_k_IndexError, sizeof(__pyx_k_IndexError), 0, 0, 1, 1},
+    {&__pyx_kp_s_Index_out_of_bounds_axis_d, __pyx_k_Index_out_of_bounds_axis_d, sizeof(__pyx_k_Index_out_of_bounds_axis_d), 0, 0, 1, 0},
+    {&__pyx_kp_s_Indirect_dimensions_not_supporte, __pyx_k_Indirect_dimensions_not_supporte, sizeof(__pyx_k_Indirect_dimensions_not_supporte), 0, 0, 1, 0},
+    {&__pyx_kp_u_Invalid_mode_expected_c_or_fortr, __pyx_k_Invalid_mode_expected_c_or_fortr, sizeof(__pyx_k_Invalid_mode_expected_c_or_fortr), 0, 1, 0, 0},
+    {&__pyx_kp_u_Invalid_shape_in_axis, __pyx_k_Invalid_shape_in_axis, sizeof(__pyx_k_Invalid_shape_in_axis), 0, 1, 0, 0},
+    {&__pyx_n_s_MemoryError, __pyx_k_MemoryError, sizeof(__pyx_k_MemoryError), 0, 0, 1, 1},
+    {&__pyx_kp_s_MemoryView_of_r_at_0x_x, __pyx_k_MemoryView_of_r_at_0x_x, sizeof(__pyx_k_MemoryView_of_r_at_0x_x), 0, 0, 1, 0},
+    {&__pyx_kp_s_MemoryView_of_r_object, __pyx_k_MemoryView_of_r_object, sizeof(__pyx_k_MemoryView_of_r_object), 0, 0, 1, 0},
+    {&__pyx_n_b_O, __pyx_k_O, sizeof(__pyx_k_O), 0, 0, 0, 1},
+    {&__pyx_kp_u_Out_of_bounds_on_buffer_access_a, __pyx_k_Out_of_bounds_on_buffer_access_a, sizeof(__pyx_k_Out_of_bounds_on_buffer_access_a), 0, 1, 0, 0},
+    {&__pyx_n_s_PickleError, __pyx_k_PickleError, sizeof(__pyx_k_PickleError), 0, 0, 1, 1},
+    {&__pyx_n_s_Sequence, __pyx_k_Sequence, sizeof(__pyx_k_Sequence), 0, 0, 1, 1},
+    {&__pyx_kp_s_Step_may_not_be_zero_axis_d, __pyx_k_Step_may_not_be_zero_axis_d, sizeof(__pyx_k_Step_may_not_be_zero_axis_d), 0, 0, 1, 0},
+    {&__pyx_n_s_TypeError, __pyx_k_TypeError, sizeof(__pyx_k_TypeError), 0, 0, 1, 1},
+    {&__pyx_kp_s_Unable_to_convert_item_to_object, __pyx_k_Unable_to_convert_item_to_object, sizeof(__pyx_k_Unable_to_convert_item_to_object), 0, 0, 1, 0},
+    {&__pyx_n_s_ValueError, __pyx_k_ValueError, sizeof(__pyx_k_ValueError), 0, 0, 1, 1},
+    {&__pyx_n_s_View_MemoryView, __pyx_k_View_MemoryView, sizeof(__pyx_k_View_MemoryView), 0, 0, 1, 1},
+    {&__pyx_kp_u__2, __pyx_k__2, sizeof(__pyx_k__2), 0, 1, 0, 0},
+    {&__pyx_n_s__24, __pyx_k__24, sizeof(__pyx_k__24), 0, 0, 1, 1},
+    {&__pyx_n_s__3, __pyx_k__3, sizeof(__pyx_k__3), 0, 0, 1, 1},
+    {&__pyx_kp_u__6, __pyx_k__6, sizeof(__pyx_k__6), 0, 1, 0, 0},
+    {&__pyx_kp_u__7, __pyx_k__7, sizeof(__pyx_k__7), 0, 1, 0, 0},
+    {&__pyx_n_s_abc, __pyx_k_abc, sizeof(__pyx_k_abc), 0, 0, 1, 1},
+    {&__pyx_n_s_allocate_buffer, __pyx_k_allocate_buffer, sizeof(__pyx_k_allocate_buffer), 0, 0, 1, 1},
+    {&__pyx_kp_u_and, __pyx_k_and, sizeof(__pyx_k_and), 0, 1, 0, 0},
+    {&__pyx_n_s_asyncio_coroutines, __pyx_k_asyncio_coroutines, sizeof(__pyx_k_asyncio_coroutines), 0, 0, 1, 1},
+    {&__pyx_n_s_base, __pyx_k_base, sizeof(__pyx_k_base), 0, 0, 1, 1},
+    {&__pyx_n_s_c, __pyx_k_c, sizeof(__pyx_k_c), 0, 0, 1, 1},
+    {&__pyx_n_u_c, __pyx_k_c, sizeof(__pyx_k_c), 0, 1, 0, 1},
+    {&__pyx_n_s_class, __pyx_k_class, sizeof(__pyx_k_class), 0, 0, 1, 1},
+    {&__pyx_n_s_class_getitem, __pyx_k_class_getitem, sizeof(__pyx_k_class_getitem), 0, 0, 1, 1},
+    {&__pyx_n_s_cline_in_traceback, __pyx_k_cline_in_traceback, sizeof(__pyx_k_cline_in_traceback), 0, 0, 1, 1},
+    {&__pyx_n_s_collections, __pyx_k_collections, sizeof(__pyx_k_collections), 0, 0, 1, 1},
+    {&__pyx_kp_s_collections_abc, __pyx_k_collections_abc, sizeof(__pyx_k_collections_abc), 0, 0, 1, 0},
+    {&__pyx_kp_s_contiguous_and_direct, __pyx_k_contiguous_and_direct, sizeof(__pyx_k_contiguous_and_direct), 0, 0, 1, 0},
+    {&__pyx_kp_s_contiguous_and_indirect, __pyx_k_contiguous_and_indirect, sizeof(__pyx_k_contiguous_and_indirect), 0, 0, 1, 0},
+    {&__pyx_n_s_count, __pyx_k_count, sizeof(__pyx_k_count), 0, 0, 1, 1},
+    {&__pyx_n_s_dict, __pyx_k_dict, sizeof(__pyx_k_dict), 0, 0, 1, 1},
+    {&__pyx_kp_u_disable, __pyx_k_disable, sizeof(__pyx_k_disable), 0, 1, 0, 0},
+    {&__pyx_n_s_dtype_is_object, __pyx_k_dtype_is_object, sizeof(__pyx_k_dtype_is_object), 0, 0, 1, 1},
+    {&__pyx_kp_u_enable, __pyx_k_enable, sizeof(__pyx_k_enable), 0, 1, 0, 0},
+    {&__pyx_n_s_encode, __pyx_k_encode, sizeof(__pyx_k_encode), 0, 0, 1, 1},
+    {&__pyx_n_s_enumerate, __pyx_k_enumerate, sizeof(__pyx_k_enumerate), 0, 0, 1, 1},
+    {&__pyx_n_s_error, __pyx_k_error, sizeof(__pyx_k_error), 0, 0, 1, 1},
+    {&__pyx_n_s_faces, __pyx_k_faces, sizeof(__pyx_k_faces), 0, 0, 1, 1},
+    {&__pyx_n_s_flags, __pyx_k_flags, sizeof(__pyx_k_flags), 0, 0, 1, 1},
+    {&__pyx_n_s_format, __pyx_k_format, sizeof(__pyx_k_format), 0, 0, 1, 1},
+    {&__pyx_n_s_fortran, __pyx_k_fortran, sizeof(__pyx_k_fortran), 0, 0, 1, 1},
+    {&__pyx_n_u_fortran, __pyx_k_fortran, sizeof(__pyx_k_fortran), 0, 1, 0, 1},
+    {&__pyx_kp_u_gc, __pyx_k_gc, sizeof(__pyx_k_gc), 0, 1, 0, 0},
+    {&__pyx_n_s_getstate, __pyx_k_getstate, sizeof(__pyx_k_getstate), 0, 0, 1, 1},
+    {&__pyx_kp_u_got, __pyx_k_got, sizeof(__pyx_k_got), 0, 1, 0, 0},
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+  __pyx_vtable_memoryview._get_base = (PyObject *(*)(struct __pyx_memoryview_obj *))__pyx_memoryview__get_base;
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+  __pyx_memoryview_type = (PyTypeObject *) __Pyx_PyType_FromModuleAndSpec(__pyx_m, &__pyx_type___pyx_memoryview_spec, NULL); if (unlikely(!__pyx_memoryview_type)) __PYX_ERR(1, 337, __pyx_L1_error)
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+  /* PY_VERSION_HEX >= 0x03090000 || Py_LIMITED_API >= 0x030B0000 */
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+  #endif
+  #if !CYTHON_USE_TYPE_SPECS
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+  if ((CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP) && likely(!__pyx_memoryview_type->tp_dictoffset && __pyx_memoryview_type->tp_getattro == PyObject_GenericGetAttr)) {
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+  if (__Pyx_setup_reduce((PyObject *) __pyx_memoryview_type) < 0) __PYX_ERR(1, 337, __pyx_L1_error)
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+  __pyx_vtable__memoryviewslice.__pyx_base = *__pyx_vtabptr_memoryview;
+  __pyx_vtable__memoryviewslice.__pyx_base.convert_item_to_object = (PyObject *(*)(struct __pyx_memoryview_obj *, char *))__pyx_memoryviewslice_convert_item_to_object;
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+  if ((CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP) && likely(!__pyx_memoryviewslice_type->tp_dictoffset && __pyx_memoryviewslice_type->tp_getattro == PyObject_GenericGetAttr)) {
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+static int __Pyx_modinit_type_import_code(void) {
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+  __Pyx_RefNannySetupContext("__Pyx_modinit_type_import_code", 0);
+  /*--- Type import code ---*/
+  __Pyx_RefNannyFinishContext();
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+}
+
+static int __Pyx_modinit_variable_import_code(void) {
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+  __Pyx_RefNannySetupContext("__Pyx_modinit_variable_import_code", 0);
+  /*--- Variable import code ---*/
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+}
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+static int __Pyx_modinit_function_import_code(void) {
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+  __Pyx_RefNannySetupContext("__Pyx_modinit_function_import_code", 0);
+  /*--- Function import code ---*/
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+  return 0;
+}
+
+
+#if PY_MAJOR_VERSION >= 3
+#if CYTHON_PEP489_MULTI_PHASE_INIT
+static PyObject* __pyx_pymod_create(PyObject *spec, PyModuleDef *def); /*proto*/
+static int __pyx_pymod_exec_voxelize(PyObject* module); /*proto*/
+static PyModuleDef_Slot __pyx_moduledef_slots[] = {
+  {Py_mod_create, (void*)__pyx_pymod_create},
+  {Py_mod_exec, (void*)__pyx_pymod_exec_voxelize},
+  {0, NULL}
+};
+#endif
+
+#ifdef __cplusplus
+namespace {
+  struct PyModuleDef __pyx_moduledef =
+  #else
+  static struct PyModuleDef __pyx_moduledef =
+  #endif
+  {
+      PyModuleDef_HEAD_INIT,
+      "voxelize",
+      0, /* m_doc */
+    #if CYTHON_PEP489_MULTI_PHASE_INIT
+      0, /* m_size */
+    #elif CYTHON_USE_MODULE_STATE
+      sizeof(__pyx_mstate), /* m_size */
+    #else
+      -1, /* m_size */
+    #endif
+      __pyx_methods /* m_methods */,
+    #if CYTHON_PEP489_MULTI_PHASE_INIT
+      __pyx_moduledef_slots, /* m_slots */
+    #else
+      NULL, /* m_reload */
+    #endif
+    #if CYTHON_USE_MODULE_STATE
+      __pyx_m_traverse, /* m_traverse */
+      __pyx_m_clear, /* m_clear */
+      NULL /* m_free */
+    #else
+      NULL, /* m_traverse */
+      NULL, /* m_clear */
+      NULL /* m_free */
+    #endif
+  };
+  #ifdef __cplusplus
+} /* anonymous namespace */
+#endif
+#endif
+
+#ifndef CYTHON_NO_PYINIT_EXPORT
+#define __Pyx_PyMODINIT_FUNC PyMODINIT_FUNC
+#elif PY_MAJOR_VERSION < 3
+#ifdef __cplusplus
+#define __Pyx_PyMODINIT_FUNC extern "C" void
+#else
+#define __Pyx_PyMODINIT_FUNC void
+#endif
+#else
+#ifdef __cplusplus
+#define __Pyx_PyMODINIT_FUNC extern "C" PyObject *
+#else
+#define __Pyx_PyMODINIT_FUNC PyObject *
+#endif
+#endif
+
+
+#if PY_MAJOR_VERSION < 3
+__Pyx_PyMODINIT_FUNC initvoxelize(void) CYTHON_SMALL_CODE; /*proto*/
+__Pyx_PyMODINIT_FUNC initvoxelize(void)
+#else
+__Pyx_PyMODINIT_FUNC PyInit_voxelize(void) CYTHON_SMALL_CODE; /*proto*/
+__Pyx_PyMODINIT_FUNC PyInit_voxelize(void)
+#if CYTHON_PEP489_MULTI_PHASE_INIT
+{
+  return PyModuleDef_Init(&__pyx_moduledef);
+}
+static CYTHON_SMALL_CODE int __Pyx_check_single_interpreter(void) {
+    #if PY_VERSION_HEX >= 0x030700A1
+    static PY_INT64_T main_interpreter_id = -1;
+    PY_INT64_T current_id = PyInterpreterState_GetID(PyThreadState_Get()->interp);
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+    #else
+    static PyInterpreterState *main_interpreter = NULL;
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+    {
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+            PyExc_ImportError,
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+        return -1;
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+    return 0;
+}
+#if CYTHON_COMPILING_IN_LIMITED_API
+static CYTHON_SMALL_CODE int __Pyx_copy_spec_to_module(PyObject *spec, PyObject *module, const char* from_name, const char* to_name, int allow_none)
+#else
+static CYTHON_SMALL_CODE int __Pyx_copy_spec_to_module(PyObject *spec, PyObject *moddict, const char* from_name, const char* to_name, int allow_none)
+#endif
+{
+    PyObject *value = PyObject_GetAttrString(spec, from_name);
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+    if (likely(value)) {
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+#if CYTHON_COMPILING_IN_LIMITED_API
+            result = PyModule_AddObject(module, to_name, value);
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+            result = PyDict_SetItemString(moddict, to_name, value);
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+        }
+        Py_DECREF(value);
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+    return result;
+}
+static CYTHON_SMALL_CODE PyObject* __pyx_pymod_create(PyObject *spec, PyModuleDef *def) {
+    PyObject *module = NULL, *moddict, *modname;
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+    if (__Pyx_check_single_interpreter())
+        return NULL;
+    if (__pyx_m)
+        return __Pyx_NewRef(__pyx_m);
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+    module = PyModule_NewObject(modname);
+    Py_DECREF(modname);
+    if (unlikely(!module)) goto bad;
+#if CYTHON_COMPILING_IN_LIMITED_API
+    moddict = module;
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+    moddict = PyModule_GetDict(module);
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+    if (unlikely(__Pyx_copy_spec_to_module(spec, moddict, "loader", "__loader__", 1) < 0)) goto bad;
+    if (unlikely(__Pyx_copy_spec_to_module(spec, moddict, "origin", "__file__", 1) < 0)) goto bad;
+    if (unlikely(__Pyx_copy_spec_to_module(spec, moddict, "parent", "__package__", 1) < 0)) goto bad;
+    if (unlikely(__Pyx_copy_spec_to_module(spec, moddict, "submodule_search_locations", "__path__", 0) < 0)) goto bad;
+    return module;
+bad:
+    Py_XDECREF(module);
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+}
+
+
+static CYTHON_SMALL_CODE int __pyx_pymod_exec_voxelize(PyObject *__pyx_pyinit_module)
+#endif
+#endif
+{
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+  #if CYTHON_USE_MODULE_STATE
+  int pystate_addmodule_run = 0;
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+  PyObject *__pyx_t_1 = NULL;
+  PyObject *__pyx_t_2 = NULL;
+  PyObject *__pyx_t_3 = NULL;
+  PyObject *__pyx_t_4 = NULL;
+  PyObject *__pyx_t_5 = NULL;
+  int __pyx_t_6;
+  PyObject *__pyx_t_7 = NULL;
+  static PyThread_type_lock __pyx_t_8[8];
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
+  __Pyx_RefNannyDeclarations
+  #if CYTHON_PEP489_MULTI_PHASE_INIT
+  if (__pyx_m) {
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+    PyErr_SetString(PyExc_RuntimeError, "Module 'voxelize' has already been imported. Re-initialisation is not supported.");
+    return -1;
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+  #elif PY_MAJOR_VERSION >= 3
+  if (__pyx_m) return __Pyx_NewRef(__pyx_m);
+  #endif
+  /*--- Module creation code ---*/
+  #if CYTHON_PEP489_MULTI_PHASE_INIT
+  __pyx_m = __pyx_pyinit_module;
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+  #if PY_MAJOR_VERSION < 3
+  __pyx_m = Py_InitModule4("voxelize", __pyx_methods, 0, 0, PYTHON_API_VERSION); Py_XINCREF(__pyx_m);
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+  __pyx_t_1 = PyModule_Create(&__pyx_moduledef); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 1, __pyx_L1_error)
+  {
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+    pystate_addmodule_run = 1;
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+        if (length != PyBytes_GET_SIZE(s2))
+            return (equals == Py_NE);
+        ps1 = PyBytes_AS_STRING(s1);
+        ps2 = PyBytes_AS_STRING(s2);
+        if (ps1[0] != ps2[0]) {
+            return (equals == Py_NE);
+        } else if (length == 1) {
+            return (equals == Py_EQ);
+        } else {
+            int result;
+#if CYTHON_USE_UNICODE_INTERNALS && (PY_VERSION_HEX < 0x030B0000)
+            Py_hash_t hash1, hash2;
+            hash1 = ((PyBytesObject*)s1)->ob_shash;
+            hash2 = ((PyBytesObject*)s2)->ob_shash;
+            if (hash1 != hash2 && hash1 != -1 && hash2 != -1) {
+                return (equals == Py_NE);
+            }
+#endif
+            result = memcmp(ps1, ps2, (size_t)length);
+            return (equals == Py_EQ) ? (result == 0) : (result != 0);
+        }
+    } else if ((s1 == Py_None) & PyBytes_CheckExact(s2)) {
+        return (equals == Py_NE);
+    } else if ((s2 == Py_None) & PyBytes_CheckExact(s1)) {
+        return (equals == Py_NE);
+    } else {
+        int result;
+        PyObject* py_result = PyObject_RichCompare(s1, s2, equals);
+        if (!py_result)
+            return -1;
+        result = __Pyx_PyObject_IsTrue(py_result);
+        Py_DECREF(py_result);
+        return result;
+    }
+#endif
+}
+
+/* UnicodeEquals */
+static CYTHON_INLINE int __Pyx_PyUnicode_Equals(PyObject* s1, PyObject* s2, int equals) {
+#if CYTHON_COMPILING_IN_PYPY || CYTHON_COMPILING_IN_LIMITED_API
+    return PyObject_RichCompareBool(s1, s2, equals);
+#else
+#if PY_MAJOR_VERSION < 3
+    PyObject* owned_ref = NULL;
+#endif
+    int s1_is_unicode, s2_is_unicode;
+    if (s1 == s2) {
+        goto return_eq;
+    }
+    s1_is_unicode = PyUnicode_CheckExact(s1);
+    s2_is_unicode = PyUnicode_CheckExact(s2);
+#if PY_MAJOR_VERSION < 3
+    if ((s1_is_unicode & (!s2_is_unicode)) && PyString_CheckExact(s2)) {
+        owned_ref = PyUnicode_FromObject(s2);
+        if (unlikely(!owned_ref))
+            return -1;
+        s2 = owned_ref;
+        s2_is_unicode = 1;
+    } else if ((s2_is_unicode & (!s1_is_unicode)) && PyString_CheckExact(s1)) {
+        owned_ref = PyUnicode_FromObject(s1);
+        if (unlikely(!owned_ref))
+            return -1;
+        s1 = owned_ref;
+        s1_is_unicode = 1;
+    } else if (((!s2_is_unicode) & (!s1_is_unicode))) {
+        return __Pyx_PyBytes_Equals(s1, s2, equals);
+    }
+#endif
+    if (s1_is_unicode & s2_is_unicode) {
+        Py_ssize_t length;
+        int kind;
+        void *data1, *data2;
+        if (unlikely(__Pyx_PyUnicode_READY(s1) < 0) || unlikely(__Pyx_PyUnicode_READY(s2) < 0))
+            return -1;
+        length = __Pyx_PyUnicode_GET_LENGTH(s1);
+        if (length != __Pyx_PyUnicode_GET_LENGTH(s2)) {
+            goto return_ne;
+        }
+#if CYTHON_USE_UNICODE_INTERNALS
+        {
+            Py_hash_t hash1, hash2;
+        #if CYTHON_PEP393_ENABLED
+            hash1 = ((PyASCIIObject*)s1)->hash;
+            hash2 = ((PyASCIIObject*)s2)->hash;
+        #else
+            hash1 = ((PyUnicodeObject*)s1)->hash;
+            hash2 = ((PyUnicodeObject*)s2)->hash;
+        #endif
+            if (hash1 != hash2 && hash1 != -1 && hash2 != -1) {
+                goto return_ne;
+            }
+        }
+#endif
+        kind = __Pyx_PyUnicode_KIND(s1);
+        if (kind != __Pyx_PyUnicode_KIND(s2)) {
+            goto return_ne;
+        }
+        data1 = __Pyx_PyUnicode_DATA(s1);
+        data2 = __Pyx_PyUnicode_DATA(s2);
+        if (__Pyx_PyUnicode_READ(kind, data1, 0) != __Pyx_PyUnicode_READ(kind, data2, 0)) {
+            goto return_ne;
+        } else if (length == 1) {
+            goto return_eq;
+        } else {
+            int result = memcmp(data1, data2, (size_t)(length * kind));
+            #if PY_MAJOR_VERSION < 3
+            Py_XDECREF(owned_ref);
+            #endif
+            return (equals == Py_EQ) ? (result == 0) : (result != 0);
+        }
+    } else if ((s1 == Py_None) & s2_is_unicode) {
+        goto return_ne;
+    } else if ((s2 == Py_None) & s1_is_unicode) {
+        goto return_ne;
+    } else {
+        int result;
+        PyObject* py_result = PyObject_RichCompare(s1, s2, equals);
+        #if PY_MAJOR_VERSION < 3
+        Py_XDECREF(owned_ref);
+        #endif
+        if (!py_result)
+            return -1;
+        result = __Pyx_PyObject_IsTrue(py_result);
+        Py_DECREF(py_result);
+        return result;
+    }
+return_eq:
+    #if PY_MAJOR_VERSION < 3
+    Py_XDECREF(owned_ref);
+    #endif
+    return (equals == Py_EQ);
+return_ne:
+    #if PY_MAJOR_VERSION < 3
+    Py_XDECREF(owned_ref);
+    #endif
+    return (equals == Py_NE);
+#endif
+}
+
+/* fastcall */
+#if CYTHON_METH_FASTCALL
+static CYTHON_INLINE PyObject * __Pyx_GetKwValue_FASTCALL(PyObject *kwnames, PyObject *const *kwvalues, PyObject *s)
+{
+    Py_ssize_t i, n = PyTuple_GET_SIZE(kwnames);
+    for (i = 0; i < n; i++)
+    {
+        if (s == PyTuple_GET_ITEM(kwnames, i)) return kwvalues[i];
+    }
+    for (i = 0; i < n; i++)
+    {
+        int eq = __Pyx_PyUnicode_Equals(s, PyTuple_GET_ITEM(kwnames, i), Py_EQ);
+        if (unlikely(eq != 0)) {
+            if (unlikely(eq < 0)) return NULL;
+            return kwvalues[i];
+        }
+    }
+    return NULL;
+}
+#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030d0000
+CYTHON_UNUSED static PyObject *__Pyx_KwargsAsDict_FASTCALL(PyObject *kwnames, PyObject *const *kwvalues) {
+    Py_ssize_t i, nkwargs = PyTuple_GET_SIZE(kwnames);
+    PyObject *dict;
+    dict = PyDict_New();
+    if (unlikely(!dict))
+        return NULL;
+    for (i=0; i<nkwargs; i++) {
+        PyObject *key = PyTuple_GET_ITEM(kwnames, i);
+        if (unlikely(PyDict_SetItem(dict, key, kwvalues[i]) < 0))
+            goto bad;
+    }
+    return dict;
+bad:
+    Py_DECREF(dict);
+    return NULL;
+}
+#endif
+#endif
+
+/* RaiseArgTupleInvalid */
+static void __Pyx_RaiseArgtupleInvalid(
+    const char* func_name,
+    int exact,
+    Py_ssize_t num_min,
+    Py_ssize_t num_max,
+    Py_ssize_t num_found)
+{
+    Py_ssize_t num_expected;
+    const char *more_or_less;
+    if (num_found < num_min) {
+        num_expected = num_min;
+        more_or_less = "at least";
+    } else {
+        num_expected = num_max;
+        more_or_less = "at most";
+    }
+    if (exact) {
+        more_or_less = "exactly";
+    }
+    PyErr_Format(PyExc_TypeError,
+                 "%.200s() takes %.8s %" CYTHON_FORMAT_SSIZE_T "d positional argument%.1s (%" CYTHON_FORMAT_SSIZE_T "d given)",
+                 func_name, more_or_less, num_expected,
+                 (num_expected == 1) ? "" : "s", num_found);
+}
+
+/* RaiseDoubleKeywords */
+static void __Pyx_RaiseDoubleKeywordsError(
+    const char* func_name,
+    PyObject* kw_name)
+{
+    PyErr_Format(PyExc_TypeError,
+        #if PY_MAJOR_VERSION >= 3
+        "%s() got multiple values for keyword argument '%U'", func_name, kw_name);
+        #else
+        "%s() got multiple values for keyword argument '%s'", func_name,
+        PyString_AsString(kw_name));
+        #endif
+}
+
+/* ParseKeywords */
+static int __Pyx_ParseOptionalKeywords(
+    PyObject *kwds,
+    PyObject *const *kwvalues,
+    PyObject **argnames[],
+    PyObject *kwds2,
+    PyObject *values[],
+    Py_ssize_t num_pos_args,
+    const char* function_name)
+{
+    PyObject *key = 0, *value = 0;
+    Py_ssize_t pos = 0;
+    PyObject*** name;
+    PyObject*** first_kw_arg = argnames + num_pos_args;
+    int kwds_is_tuple = CYTHON_METH_FASTCALL && likely(PyTuple_Check(kwds));
+    while (1) {
+        Py_XDECREF(key); key = NULL;
+        Py_XDECREF(value); value = NULL;
+        if (kwds_is_tuple) {
+            Py_ssize_t size;
+#if CYTHON_ASSUME_SAFE_MACROS
+            size = PyTuple_GET_SIZE(kwds);
+#else
+            size = PyTuple_Size(kwds);
+            if (size < 0) goto bad;
+#endif
+            if (pos >= size) break;
+#if CYTHON_AVOID_BORROWED_REFS
+            key = __Pyx_PySequence_ITEM(kwds, pos);
+            if (!key) goto bad;
+#elif CYTHON_ASSUME_SAFE_MACROS
+            key = PyTuple_GET_ITEM(kwds, pos);
+#else
+            key = PyTuple_GetItem(kwds, pos);
+            if (!key) goto bad;
+#endif
+            value = kwvalues[pos];
+            pos++;
+        }
+        else
+        {
+            if (!PyDict_Next(kwds, &pos, &key, &value)) break;
+#if CYTHON_AVOID_BORROWED_REFS
+            Py_INCREF(key);
+#endif
+        }
+        name = first_kw_arg;
+        while (*name && (**name != key)) name++;
+        if (*name) {
+            values[name-argnames] = value;
+#if CYTHON_AVOID_BORROWED_REFS
+            Py_INCREF(value);
+            Py_DECREF(key);
+#endif
+            key = NULL;
+            value = NULL;
+            continue;
+        }
+#if !CYTHON_AVOID_BORROWED_REFS
+        Py_INCREF(key);
+#endif
+        Py_INCREF(value);
+        name = first_kw_arg;
+        #if PY_MAJOR_VERSION < 3
+        if (likely(PyString_Check(key))) {
+            while (*name) {
+                if ((CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**name) == PyString_GET_SIZE(key))
+                        && _PyString_Eq(**name, key)) {
+                    values[name-argnames] = value;
+#if CYTHON_AVOID_BORROWED_REFS
+                    value = NULL;
+#endif
+                    break;
+                }
+                name++;
+            }
+            if (*name) continue;
+            else {
+                PyObject*** argname = argnames;
+                while (argname != first_kw_arg) {
+                    if ((**argname == key) || (
+                            (CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**argname) == PyString_GET_SIZE(key))
+                             && _PyString_Eq(**argname, key))) {
+                        goto arg_passed_twice;
+                    }
+                    argname++;
+                }
+            }
+        } else
+        #endif
+        if (likely(PyUnicode_Check(key))) {
+            while (*name) {
+                int cmp = (
+                #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
+                    (__Pyx_PyUnicode_GET_LENGTH(**name) != __Pyx_PyUnicode_GET_LENGTH(key)) ? 1 :
+                #endif
+                    PyUnicode_Compare(**name, key)
+                );
+                if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
+                if (cmp == 0) {
+                    values[name-argnames] = value;
+#if CYTHON_AVOID_BORROWED_REFS
+                    value = NULL;
+#endif
+                    break;
+                }
+                name++;
+            }
+            if (*name) continue;
+            else {
+                PyObject*** argname = argnames;
+                while (argname != first_kw_arg) {
+                    int cmp = (**argname == key) ? 0 :
+                    #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
+                        (__Pyx_PyUnicode_GET_LENGTH(**argname) != __Pyx_PyUnicode_GET_LENGTH(key)) ? 1 :
+                    #endif
+                        PyUnicode_Compare(**argname, key);
+                    if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
+                    if (cmp == 0) goto arg_passed_twice;
+                    argname++;
+                }
+            }
+        } else
+            goto invalid_keyword_type;
+        if (kwds2) {
+            if (unlikely(PyDict_SetItem(kwds2, key, value))) goto bad;
+        } else {
+            goto invalid_keyword;
+        }
+    }
+    Py_XDECREF(key);
+    Py_XDECREF(value);
+    return 0;
+arg_passed_twice:
+    __Pyx_RaiseDoubleKeywordsError(function_name, key);
+    goto bad;
+invalid_keyword_type:
+    PyErr_Format(PyExc_TypeError,
+        "%.200s() keywords must be strings", function_name);
+    goto bad;
+invalid_keyword:
+    #if PY_MAJOR_VERSION < 3
+    PyErr_Format(PyExc_TypeError,
+        "%.200s() got an unexpected keyword argument '%.200s'",
+        function_name, PyString_AsString(key));
+    #else
+    PyErr_Format(PyExc_TypeError,
+        "%s() got an unexpected keyword argument '%U'",
+        function_name, key);
+    #endif
+bad:
+    Py_XDECREF(key);
+    Py_XDECREF(value);
+    return -1;
+}
+
+/* ArgTypeTest */
+static int __Pyx__ArgTypeTest(PyObject *obj, PyTypeObject *type, const char *name, int exact)
+{
+    __Pyx_TypeName type_name;
+    __Pyx_TypeName obj_type_name;
+    if (unlikely(!type)) {
+        PyErr_SetString(PyExc_SystemError, "Missing type object");
+        return 0;
+    }
+    else if (exact) {
+        #if PY_MAJOR_VERSION == 2
+        if ((type == &PyBaseString_Type) && likely(__Pyx_PyBaseString_CheckExact(obj))) return 1;
+        #endif
+    }
+    else {
+        if (likely(__Pyx_TypeCheck(obj, type))) return 1;
+    }
+    type_name = __Pyx_PyType_GetName(type);
+    obj_type_name = __Pyx_PyType_GetName(Py_TYPE(obj));
+    PyErr_Format(PyExc_TypeError,
+        "Argument '%.200s' has incorrect type (expected " __Pyx_FMT_TYPENAME
+        ", got " __Pyx_FMT_TYPENAME ")", name, type_name, obj_type_name);
+    __Pyx_DECREF_TypeName(type_name);
+    __Pyx_DECREF_TypeName(obj_type_name);
+    return 0;
+}
+
+/* RaiseException */
+#if PY_MAJOR_VERSION < 3
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause) {
+    __Pyx_PyThreadState_declare
+    CYTHON_UNUSED_VAR(cause);
+    Py_XINCREF(type);
+    if (!value || value == Py_None)
+        value = NULL;
+    else
+        Py_INCREF(value);
+    if (!tb || tb == Py_None)
+        tb = NULL;
+    else {
+        Py_INCREF(tb);
+        if (!PyTraceBack_Check(tb)) {
+            PyErr_SetString(PyExc_TypeError,
+                "raise: arg 3 must be a traceback or None");
+            goto raise_error;
+        }
+    }
+    if (PyType_Check(type)) {
+#if CYTHON_COMPILING_IN_PYPY
+        if (!value) {
+            Py_INCREF(Py_None);
+            value = Py_None;
+        }
+#endif
+        PyErr_NormalizeException(&type, &value, &tb);
+    } else {
+        if (value) {
+            PyErr_SetString(PyExc_TypeError,
+                "instance exception may not have a separate value");
+            goto raise_error;
+        }
+        value = type;
+        type = (PyObject*) Py_TYPE(type);
+        Py_INCREF(type);
+        if (!PyType_IsSubtype((PyTypeObject *)type, (PyTypeObject *)PyExc_BaseException)) {
+            PyErr_SetString(PyExc_TypeError,
+                "raise: exception class must be a subclass of BaseException");
+            goto raise_error;
+        }
+    }
+    __Pyx_PyThreadState_assign
+    __Pyx_ErrRestore(type, value, tb);
+    return;
+raise_error:
+    Py_XDECREF(value);
+    Py_XDECREF(type);
+    Py_XDECREF(tb);
+    return;
+}
+#else
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause) {
+    PyObject* owned_instance = NULL;
+    if (tb == Py_None) {
+        tb = 0;
+    } else if (tb && !PyTraceBack_Check(tb)) {
+        PyErr_SetString(PyExc_TypeError,
+            "raise: arg 3 must be a traceback or None");
+        goto bad;
+    }
+    if (value == Py_None)
+        value = 0;
+    if (PyExceptionInstance_Check(type)) {
+        if (value) {
+            PyErr_SetString(PyExc_TypeError,
+                "instance exception may not have a separate value");
+            goto bad;
+        }
+        value = type;
+        type = (PyObject*) Py_TYPE(value);
+    } else if (PyExceptionClass_Check(type)) {
+        PyObject *instance_class = NULL;
+        if (value && PyExceptionInstance_Check(value)) {
+            instance_class = (PyObject*) Py_TYPE(value);
+            if (instance_class != type) {
+                int is_subclass = PyObject_IsSubclass(instance_class, type);
+                if (!is_subclass) {
+                    instance_class = NULL;
+                } else if (unlikely(is_subclass == -1)) {
+                    goto bad;
+                } else {
+                    type = instance_class;
+                }
+            }
+        }
+        if (!instance_class) {
+            PyObject *args;
+            if (!value)
+                args = PyTuple_New(0);
+            else if (PyTuple_Check(value)) {
+                Py_INCREF(value);
+                args = value;
+            } else
+                args = PyTuple_Pack(1, value);
+            if (!args)
+                goto bad;
+            owned_instance = PyObject_Call(type, args, NULL);
+            Py_DECREF(args);
+            if (!owned_instance)
+                goto bad;
+            value = owned_instance;
+            if (!PyExceptionInstance_Check(value)) {
+                PyErr_Format(PyExc_TypeError,
+                             "calling %R should have returned an instance of "
+                             "BaseException, not %R",
+                             type, Py_TYPE(value));
+                goto bad;
+            }
+        }
+    } else {
+        PyErr_SetString(PyExc_TypeError,
+            "raise: exception class must be a subclass of BaseException");
+        goto bad;
+    }
+    if (cause) {
+        PyObject *fixed_cause;
+        if (cause == Py_None) {
+            fixed_cause = NULL;
+        } else if (PyExceptionClass_Check(cause)) {
+            fixed_cause = PyObject_CallObject(cause, NULL);
+            if (fixed_cause == NULL)
+                goto bad;
+        } else if (PyExceptionInstance_Check(cause)) {
+            fixed_cause = cause;
+            Py_INCREF(fixed_cause);
+        } else {
+            PyErr_SetString(PyExc_TypeError,
+                            "exception causes must derive from "
+                            "BaseException");
+            goto bad;
+        }
+        PyException_SetCause(value, fixed_cause);
+    }
+    PyErr_SetObject(type, value);
+    if (tb) {
+      #if PY_VERSION_HEX >= 0x030C00A6
+        PyException_SetTraceback(value, tb);
+      #elif CYTHON_FAST_THREAD_STATE
+        PyThreadState *tstate = __Pyx_PyThreadState_Current;
+        PyObject* tmp_tb = tstate->curexc_traceback;
+        if (tb != tmp_tb) {
+            Py_INCREF(tb);
+            tstate->curexc_traceback = tb;
+            Py_XDECREF(tmp_tb);
+        }
+#else
+        PyObject *tmp_type, *tmp_value, *tmp_tb;
+        PyErr_Fetch(&tmp_type, &tmp_value, &tmp_tb);
+        Py_INCREF(tb);
+        PyErr_Restore(tmp_type, tmp_value, tb);
+        Py_XDECREF(tmp_tb);
+#endif
+    }
+bad:
+    Py_XDECREF(owned_instance);
+    return;
+}
+#endif
+
+/* PyFunctionFastCall */
+#if CYTHON_FAST_PYCALL && !CYTHON_VECTORCALL
+static PyObject* __Pyx_PyFunction_FastCallNoKw(PyCodeObject *co, PyObject **args, Py_ssize_t na,
+                                               PyObject *globals) {
+    PyFrameObject *f;
+    PyThreadState *tstate = __Pyx_PyThreadState_Current;
+    PyObject **fastlocals;
+    Py_ssize_t i;
+    PyObject *result;
+    assert(globals != NULL);
+    /* XXX Perhaps we should create a specialized
+       PyFrame_New() that doesn't take locals, but does
+       take builtins without sanity checking them.
+       */
+    assert(tstate != NULL);
+    f = PyFrame_New(tstate, co, globals, NULL);
+    if (f == NULL) {
+        return NULL;
+    }
+    fastlocals = __Pyx_PyFrame_GetLocalsplus(f);
+    for (i = 0; i < na; i++) {
+        Py_INCREF(*args);
+        fastlocals[i] = *args++;
+    }
+    result = PyEval_EvalFrameEx(f,0);
+    ++tstate->recursion_depth;
+    Py_DECREF(f);
+    --tstate->recursion_depth;
+    return result;
+}
+static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, Py_ssize_t nargs, PyObject *kwargs) {
+    PyCodeObject *co = (PyCodeObject *)PyFunction_GET_CODE(func);
+    PyObject *globals = PyFunction_GET_GLOBALS(func);
+    PyObject *argdefs = PyFunction_GET_DEFAULTS(func);
+    PyObject *closure;
+#if PY_MAJOR_VERSION >= 3
+    PyObject *kwdefs;
+#endif
+    PyObject *kwtuple, **k;
+    PyObject **d;
+    Py_ssize_t nd;
+    Py_ssize_t nk;
+    PyObject *result;
+    assert(kwargs == NULL || PyDict_Check(kwargs));
+    nk = kwargs ? PyDict_Size(kwargs) : 0;
+    #if PY_MAJOR_VERSION < 3
+    if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object"))) {
+        return NULL;
+    }
+    #else
+    if (unlikely(Py_EnterRecursiveCall(" while calling a Python object"))) {
+        return NULL;
+    }
+    #endif
+    if (
+#if PY_MAJOR_VERSION >= 3
+            co->co_kwonlyargcount == 0 &&
+#endif
+            likely(kwargs == NULL || nk == 0) &&
+            co->co_flags == (CO_OPTIMIZED | CO_NEWLOCALS | CO_NOFREE)) {
+        if (argdefs == NULL && co->co_argcount == nargs) {
+            result = __Pyx_PyFunction_FastCallNoKw(co, args, nargs, globals);
+            goto done;
+        }
+        else if (nargs == 0 && argdefs != NULL
+                 && co->co_argcount == Py_SIZE(argdefs)) {
+            /* function called with no arguments, but all parameters have
+               a default value: use default values as arguments .*/
+            args = &PyTuple_GET_ITEM(argdefs, 0);
+            result =__Pyx_PyFunction_FastCallNoKw(co, args, Py_SIZE(argdefs), globals);
+            goto done;
+        }
+    }
+    if (kwargs != NULL) {
+        Py_ssize_t pos, i;
+        kwtuple = PyTuple_New(2 * nk);
+        if (kwtuple == NULL) {
+            result = NULL;
+            goto done;
+        }
+        k = &PyTuple_GET_ITEM(kwtuple, 0);
+        pos = i = 0;
+        while (PyDict_Next(kwargs, &pos, &k[i], &k[i+1])) {
+            Py_INCREF(k[i]);
+            Py_INCREF(k[i+1]);
+            i += 2;
+        }
+        nk = i / 2;
+    }
+    else {
+        kwtuple = NULL;
+        k = NULL;
+    }
+    closure = PyFunction_GET_CLOSURE(func);
+#if PY_MAJOR_VERSION >= 3
+    kwdefs = PyFunction_GET_KW_DEFAULTS(func);
+#endif
+    if (argdefs != NULL) {
+        d = &PyTuple_GET_ITEM(argdefs, 0);
+        nd = Py_SIZE(argdefs);
+    }
+    else {
+        d = NULL;
+        nd = 0;
+    }
+#if PY_MAJOR_VERSION >= 3
+    result = PyEval_EvalCodeEx((PyObject*)co, globals, (PyObject *)NULL,
+                               args, (int)nargs,
+                               k, (int)nk,
+                               d, (int)nd, kwdefs, closure);
+#else
+    result = PyEval_EvalCodeEx(co, globals, (PyObject *)NULL,
+                               args, (int)nargs,
+                               k, (int)nk,
+                               d, (int)nd, closure);
+#endif
+    Py_XDECREF(kwtuple);
+done:
+    Py_LeaveRecursiveCall();
+    return result;
+}
+#endif
+
+/* PyObjectCall */
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw) {
+    PyObject *result;
+    ternaryfunc call = Py_TYPE(func)->tp_call;
+    if (unlikely(!call))
+        return PyObject_Call(func, arg, kw);
+    #if PY_MAJOR_VERSION < 3
+    if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object")))
+        return NULL;
+    #else
+    if (unlikely(Py_EnterRecursiveCall(" while calling a Python object")))
+        return NULL;
+    #endif
+    result = (*call)(func, arg, kw);
+    Py_LeaveRecursiveCall();
+    if (unlikely(!result) && unlikely(!PyErr_Occurred())) {
+        PyErr_SetString(
+            PyExc_SystemError,
+            "NULL result without error in PyObject_Call");
+    }
+    return result;
+}
+#endif
+
+/* PyObjectCallMethO */
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg) {
+    PyObject *self, *result;
+    PyCFunction cfunc;
+    cfunc = __Pyx_CyOrPyCFunction_GET_FUNCTION(func);
+    self = __Pyx_CyOrPyCFunction_GET_SELF(func);
+    #if PY_MAJOR_VERSION < 3
+    if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object")))
+        return NULL;
+    #else
+    if (unlikely(Py_EnterRecursiveCall(" while calling a Python object")))
+        return NULL;
+    #endif
+    result = cfunc(self, arg);
+    Py_LeaveRecursiveCall();
+    if (unlikely(!result) && unlikely(!PyErr_Occurred())) {
+        PyErr_SetString(
+            PyExc_SystemError,
+            "NULL result without error in PyObject_Call");
+    }
+    return result;
+}
+#endif
+
+/* PyObjectFastCall */
+#if PY_VERSION_HEX < 0x03090000 || CYTHON_COMPILING_IN_LIMITED_API
+static PyObject* __Pyx_PyObject_FastCall_fallback(PyObject *func, PyObject **args, size_t nargs, PyObject *kwargs) {
+    PyObject *argstuple;
+    PyObject *result = 0;
+    size_t i;
+    argstuple = PyTuple_New((Py_ssize_t)nargs);
+    if (unlikely(!argstuple)) return NULL;
+    for (i = 0; i < nargs; i++) {
+        Py_INCREF(args[i]);
+        if (__Pyx_PyTuple_SET_ITEM(argstuple, (Py_ssize_t)i, args[i]) < 0) goto bad;
+    }
+    result = __Pyx_PyObject_Call(func, argstuple, kwargs);
+  bad:
+    Py_DECREF(argstuple);
+    return result;
+}
+#endif
+static CYTHON_INLINE PyObject* __Pyx_PyObject_FastCallDict(PyObject *func, PyObject **args, size_t _nargs, PyObject *kwargs) {
+    Py_ssize_t nargs = __Pyx_PyVectorcall_NARGS(_nargs);
+#if CYTHON_COMPILING_IN_CPYTHON
+    if (nargs == 0 && kwargs == NULL) {
+        if (__Pyx_CyOrPyCFunction_Check(func) && likely( __Pyx_CyOrPyCFunction_GET_FLAGS(func) & METH_NOARGS))
+            return __Pyx_PyObject_CallMethO(func, NULL);
+    }
+    else if (nargs == 1 && kwargs == NULL) {
+        if (__Pyx_CyOrPyCFunction_Check(func) && likely( __Pyx_CyOrPyCFunction_GET_FLAGS(func) & METH_O))
+            return __Pyx_PyObject_CallMethO(func, args[0]);
+    }
+#endif
+    #if PY_VERSION_HEX < 0x030800B1
+    #if CYTHON_FAST_PYCCALL
+    if (PyCFunction_Check(func)) {
+        if (kwargs) {
+            return _PyCFunction_FastCallDict(func, args, nargs, kwargs);
+        } else {
+            return _PyCFunction_FastCallKeywords(func, args, nargs, NULL);
+        }
+    }
+    #if PY_VERSION_HEX >= 0x030700A1
+    if (!kwargs && __Pyx_IS_TYPE(func, &PyMethodDescr_Type)) {
+        return _PyMethodDescr_FastCallKeywords(func, args, nargs, NULL);
+    }
+    #endif
+    #endif
+    #if CYTHON_FAST_PYCALL
+    if (PyFunction_Check(func)) {
+        return __Pyx_PyFunction_FastCallDict(func, args, nargs, kwargs);
+    }
+    #endif
+    #endif
+    if (kwargs == NULL) {
+        #if CYTHON_VECTORCALL
+        #if PY_VERSION_HEX < 0x03090000
+        vectorcallfunc f = _PyVectorcall_Function(func);
+        #else
+        vectorcallfunc f = PyVectorcall_Function(func);
+        #endif
+        if (f) {
+            return f(func, args, (size_t)nargs, NULL);
+        }
+        #elif defined(__Pyx_CyFunction_USED) && CYTHON_BACKPORT_VECTORCALL
+        if (__Pyx_CyFunction_CheckExact(func)) {
+            __pyx_vectorcallfunc f = __Pyx_CyFunction_func_vectorcall(func);
+            if (f) return f(func, args, (size_t)nargs, NULL);
+        }
+        #endif
+    }
+    if (nargs == 0) {
+        return __Pyx_PyObject_Call(func, __pyx_empty_tuple, kwargs);
+    }
+    #if PY_VERSION_HEX >= 0x03090000 && !CYTHON_COMPILING_IN_LIMITED_API
+    return PyObject_VectorcallDict(func, args, (size_t)nargs, kwargs);
+    #else
+    return __Pyx_PyObject_FastCall_fallback(func, args, (size_t)nargs, kwargs);
+    #endif
+}
+
+/* RaiseUnexpectedTypeError */
+static int
+__Pyx_RaiseUnexpectedTypeError(const char *expected, PyObject *obj)
+{
+    __Pyx_TypeName obj_type_name = __Pyx_PyType_GetName(Py_TYPE(obj));
+    PyErr_Format(PyExc_TypeError, "Expected %s, got " __Pyx_FMT_TYPENAME,
+                 expected, obj_type_name);
+    __Pyx_DECREF_TypeName(obj_type_name);
+    return 0;
+}
+
+/* CIntToDigits */
+static const char DIGIT_PAIRS_10[2*10*10+1] = {
+    "00010203040506070809"
+    "10111213141516171819"
+    "20212223242526272829"
+    "30313233343536373839"
+    "40414243444546474849"
+    "50515253545556575859"
+    "60616263646566676869"
+    "70717273747576777879"
+    "80818283848586878889"
+    "90919293949596979899"
+};
+static const char DIGIT_PAIRS_8[2*8*8+1] = {
+    "0001020304050607"
+    "1011121314151617"
+    "2021222324252627"
+    "3031323334353637"
+    "4041424344454647"
+    "5051525354555657"
+    "6061626364656667"
+    "7071727374757677"
+};
+static const char DIGITS_HEX[2*16+1] = {
+    "0123456789abcdef"
+    "0123456789ABCDEF"
+};
+
+/* BuildPyUnicode */
+static PyObject* __Pyx_PyUnicode_BuildFromAscii(Py_ssize_t ulength, char* chars, int clength,
+                                                int prepend_sign, char padding_char) {
+    PyObject *uval;
+    Py_ssize_t uoffset = ulength - clength;
+#if CYTHON_USE_UNICODE_INTERNALS
+    Py_ssize_t i;
+#if CYTHON_PEP393_ENABLED
+    void *udata;
+    uval = PyUnicode_New(ulength, 127);
+    if (unlikely(!uval)) return NULL;
+    udata = PyUnicode_DATA(uval);
+#else
+    Py_UNICODE *udata;
+    uval = PyUnicode_FromUnicode(NULL, ulength);
+    if (unlikely(!uval)) return NULL;
+    udata = PyUnicode_AS_UNICODE(uval);
+#endif
+    if (uoffset > 0) {
+        i = 0;
+        if (prepend_sign) {
+            __Pyx_PyUnicode_WRITE(PyUnicode_1BYTE_KIND, udata, 0, '-');
+            i++;
+        }
+        for (; i < uoffset; i++) {
+            __Pyx_PyUnicode_WRITE(PyUnicode_1BYTE_KIND, udata, i, padding_char);
+        }
+    }
+    for (i=0; i < clength; i++) {
+        __Pyx_PyUnicode_WRITE(PyUnicode_1BYTE_KIND, udata, uoffset+i, chars[i]);
+    }
+#else
+    {
+        PyObject *sign = NULL, *padding = NULL;
+        uval = NULL;
+        if (uoffset > 0) {
+            prepend_sign = !!prepend_sign;
+            if (uoffset > prepend_sign) {
+                padding = PyUnicode_FromOrdinal(padding_char);
+                if (likely(padding) && uoffset > prepend_sign + 1) {
+                    PyObject *tmp;
+                    PyObject *repeat = PyInt_FromSsize_t(uoffset - prepend_sign);
+                    if (unlikely(!repeat)) goto done_or_error;
+                    tmp = PyNumber_Multiply(padding, repeat);
+                    Py_DECREF(repeat);
+                    Py_DECREF(padding);
+                    padding = tmp;
+                }
+                if (unlikely(!padding)) goto done_or_error;
+            }
+            if (prepend_sign) {
+                sign = PyUnicode_FromOrdinal('-');
+                if (unlikely(!sign)) goto done_or_error;
+            }
+        }
+        uval = PyUnicode_DecodeASCII(chars, clength, NULL);
+        if (likely(uval) && padding) {
+            PyObject *tmp = PyNumber_Add(padding, uval);
+            Py_DECREF(uval);
+            uval = tmp;
+        }
+        if (likely(uval) && sign) {
+            PyObject *tmp = PyNumber_Add(sign, uval);
+            Py_DECREF(uval);
+            uval = tmp;
+        }
+done_or_error:
+        Py_XDECREF(padding);
+        Py_XDECREF(sign);
+    }
+#endif
+    return uval;
+}
+
+/* CIntToPyUnicode */
+static CYTHON_INLINE PyObject* __Pyx_PyUnicode_From_int(int value, Py_ssize_t width, char padding_char, char format_char) {
+    char digits[sizeof(int)*3+2];
+    char *dpos, *end = digits + sizeof(int)*3+2;
+    const char *hex_digits = DIGITS_HEX;
+    Py_ssize_t length, ulength;
+    int prepend_sign, last_one_off;
+    int remaining;
+#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wconversion"
+#endif
+    const int neg_one = (int) -1, const_zero = (int) 0;
+#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
+#pragma GCC diagnostic pop
+#endif
+    const int is_unsigned = neg_one > const_zero;
+    if (format_char == 'X') {
+        hex_digits += 16;
+        format_char = 'x';
+    }
+    remaining = value;
+    last_one_off = 0;
+    dpos = end;
+    do {
+        int digit_pos;
+        switch (format_char) {
+        case 'o':
+            digit_pos = abs((int)(remaining % (8*8)));
+            remaining = (int) (remaining / (8*8));
+            dpos -= 2;
+            memcpy(dpos, DIGIT_PAIRS_8 + digit_pos * 2, 2);
+            last_one_off = (digit_pos < 8);
+            break;
+        case 'd':
+            digit_pos = abs((int)(remaining % (10*10)));
+            remaining = (int) (remaining / (10*10));
+            dpos -= 2;
+            memcpy(dpos, DIGIT_PAIRS_10 + digit_pos * 2, 2);
+            last_one_off = (digit_pos < 10);
+            break;
+        case 'x':
+            *(--dpos) = hex_digits[abs((int)(remaining % 16))];
+            remaining = (int) (remaining / 16);
+            break;
+        default:
+            assert(0);
+            break;
+        }
+    } while (unlikely(remaining != 0));
+    assert(!last_one_off || *dpos == '0');
+    dpos += last_one_off;
+    length = end - dpos;
+    ulength = length;
+    prepend_sign = 0;
+    if (!is_unsigned && value <= neg_one) {
+        if (padding_char == ' ' || width <= length + 1) {
+            *(--dpos) = '-';
+            ++length;
+        } else {
+            prepend_sign = 1;
+        }
+        ++ulength;
+    }
+    if (width > ulength) {
+        ulength = width;
+    }
+    if (ulength == 1) {
+        return PyUnicode_FromOrdinal(*dpos);
+    }
+    return __Pyx_PyUnicode_BuildFromAscii(ulength, dpos, (int) length, prepend_sign, padding_char);
+}
+
+/* CIntToPyUnicode */
+static CYTHON_INLINE PyObject* __Pyx_PyUnicode_From_Py_ssize_t(Py_ssize_t value, Py_ssize_t width, char padding_char, char format_char) {
+    char digits[sizeof(Py_ssize_t)*3+2];
+    char *dpos, *end = digits + sizeof(Py_ssize_t)*3+2;
+    const char *hex_digits = DIGITS_HEX;
+    Py_ssize_t length, ulength;
+    int prepend_sign, last_one_off;
+    Py_ssize_t remaining;
+#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wconversion"
+#endif
+    const Py_ssize_t neg_one = (Py_ssize_t) -1, const_zero = (Py_ssize_t) 0;
+#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
+#pragma GCC diagnostic pop
+#endif
+    const int is_unsigned = neg_one > const_zero;
+    if (format_char == 'X') {
+        hex_digits += 16;
+        format_char = 'x';
+    }
+    remaining = value;
+    last_one_off = 0;
+    dpos = end;
+    do {
+        int digit_pos;
+        switch (format_char) {
+        case 'o':
+            digit_pos = abs((int)(remaining % (8*8)));
+            remaining = (Py_ssize_t) (remaining / (8*8));
+            dpos -= 2;
+            memcpy(dpos, DIGIT_PAIRS_8 + digit_pos * 2, 2);
+            last_one_off = (digit_pos < 8);
+            break;
+        case 'd':
+            digit_pos = abs((int)(remaining % (10*10)));
+            remaining = (Py_ssize_t) (remaining / (10*10));
+            dpos -= 2;
+            memcpy(dpos, DIGIT_PAIRS_10 + digit_pos * 2, 2);
+            last_one_off = (digit_pos < 10);
+            break;
+        case 'x':
+            *(--dpos) = hex_digits[abs((int)(remaining % 16))];
+            remaining = (Py_ssize_t) (remaining / 16);
+            break;
+        default:
+            assert(0);
+            break;
+        }
+    } while (unlikely(remaining != 0));
+    assert(!last_one_off || *dpos == '0');
+    dpos += last_one_off;
+    length = end - dpos;
+    ulength = length;
+    prepend_sign = 0;
+    if (!is_unsigned && value <= neg_one) {
+        if (padding_char == ' ' || width <= length + 1) {
+            *(--dpos) = '-';
+            ++length;
+        } else {
+            prepend_sign = 1;
+        }
+        ++ulength;
+    }
+    if (width > ulength) {
+        ulength = width;
+    }
+    if (ulength == 1) {
+        return PyUnicode_FromOrdinal(*dpos);
+    }
+    return __Pyx_PyUnicode_BuildFromAscii(ulength, dpos, (int) length, prepend_sign, padding_char);
+}
+
+/* JoinPyUnicode */
+static PyObject* __Pyx_PyUnicode_Join(PyObject* value_tuple, Py_ssize_t value_count, Py_ssize_t result_ulength,
+                                      Py_UCS4 max_char) {
+#if CYTHON_USE_UNICODE_INTERNALS && CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
+    PyObject *result_uval;
+    int result_ukind, kind_shift;
+    Py_ssize_t i, char_pos;
+    void *result_udata;
+    CYTHON_MAYBE_UNUSED_VAR(max_char);
+#if CYTHON_PEP393_ENABLED
+    result_uval = PyUnicode_New(result_ulength, max_char);
+    if (unlikely(!result_uval)) return NULL;
+    result_ukind = (max_char <= 255) ? PyUnicode_1BYTE_KIND : (max_char <= 65535) ? PyUnicode_2BYTE_KIND : PyUnicode_4BYTE_KIND;
+    kind_shift = (result_ukind == PyUnicode_4BYTE_KIND) ? 2 : result_ukind - 1;
+    result_udata = PyUnicode_DATA(result_uval);
+#else
+    result_uval = PyUnicode_FromUnicode(NULL, result_ulength);
+    if (unlikely(!result_uval)) return NULL;
+    result_ukind = sizeof(Py_UNICODE);
+    kind_shift = (result_ukind == 4) ? 2 : result_ukind - 1;
+    result_udata = PyUnicode_AS_UNICODE(result_uval);
+#endif
+    assert(kind_shift == 2 || kind_shift == 1 || kind_shift == 0);
+    char_pos = 0;
+    for (i=0; i < value_count; i++) {
+        int ukind;
+        Py_ssize_t ulength;
+        void *udata;
+        PyObject *uval = PyTuple_GET_ITEM(value_tuple, i);
+        if (unlikely(__Pyx_PyUnicode_READY(uval)))
+            goto bad;
+        ulength = __Pyx_PyUnicode_GET_LENGTH(uval);
+        if (unlikely(!ulength))
+            continue;
+        if (unlikely((PY_SSIZE_T_MAX >> kind_shift) - ulength < char_pos))
+            goto overflow;
+        ukind = __Pyx_PyUnicode_KIND(uval);
+        udata = __Pyx_PyUnicode_DATA(uval);
+        if (!CYTHON_PEP393_ENABLED || ukind == result_ukind) {
+            memcpy((char *)result_udata + (char_pos << kind_shift), udata, (size_t) (ulength << kind_shift));
+        } else {
+            #if PY_VERSION_HEX >= 0x030d0000
+            if (unlikely(PyUnicode_CopyCharacters(result_uval, char_pos, uval, 0, ulength) < 0)) goto bad;
+            #elif CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030300F0 || defined(_PyUnicode_FastCopyCharacters)
+            _PyUnicode_FastCopyCharacters(result_uval, char_pos, uval, 0, ulength);
+            #else
+            Py_ssize_t j;
+            for (j=0; j < ulength; j++) {
+                Py_UCS4 uchar = __Pyx_PyUnicode_READ(ukind, udata, j);
+                __Pyx_PyUnicode_WRITE(result_ukind, result_udata, char_pos+j, uchar);
+            }
+            #endif
+        }
+        char_pos += ulength;
+    }
+    return result_uval;
+overflow:
+    PyErr_SetString(PyExc_OverflowError, "join() result is too long for a Python string");
+bad:
+    Py_DECREF(result_uval);
+    return NULL;
+#else
+    CYTHON_UNUSED_VAR(max_char);
+    CYTHON_UNUSED_VAR(result_ulength);
+    CYTHON_UNUSED_VAR(value_count);
+    return PyUnicode_Join(__pyx_empty_unicode, value_tuple);
+#endif
+}
+
+/* GetAttr */
+static CYTHON_INLINE PyObject *__Pyx_GetAttr(PyObject *o, PyObject *n) {
+#if CYTHON_USE_TYPE_SLOTS
+#if PY_MAJOR_VERSION >= 3
+    if (likely(PyUnicode_Check(n)))
+#else
+    if (likely(PyString_Check(n)))
+#endif
+        return __Pyx_PyObject_GetAttrStr(o, n);
+#endif
+    return PyObject_GetAttr(o, n);
+}
+
+/* GetItemInt */
+static PyObject *__Pyx_GetItemInt_Generic(PyObject *o, PyObject* j) {
+    PyObject *r;
+    if (unlikely(!j)) return NULL;
+    r = PyObject_GetItem(o, j);
+    Py_DECREF(j);
+    return r;
+}
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_List_Fast(PyObject *o, Py_ssize_t i,
+                                                              CYTHON_NCP_UNUSED int wraparound,
+                                                              CYTHON_NCP_UNUSED int boundscheck) {
+#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
+    Py_ssize_t wrapped_i = i;
+    if (wraparound & unlikely(i < 0)) {
+        wrapped_i += PyList_GET_SIZE(o);
+    }
+    if ((!boundscheck) || likely(__Pyx_is_valid_index(wrapped_i, PyList_GET_SIZE(o)))) {
+        PyObject *r = PyList_GET_ITEM(o, wrapped_i);
+        Py_INCREF(r);
+        return r;
+    }
+    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+#else
+    return PySequence_GetItem(o, i);
+#endif
+}
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Tuple_Fast(PyObject *o, Py_ssize_t i,
+                                                              CYTHON_NCP_UNUSED int wraparound,
+                                                              CYTHON_NCP_UNUSED int boundscheck) {
+#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
+    Py_ssize_t wrapped_i = i;
+    if (wraparound & unlikely(i < 0)) {
+        wrapped_i += PyTuple_GET_SIZE(o);
+    }
+    if ((!boundscheck) || likely(__Pyx_is_valid_index(wrapped_i, PyTuple_GET_SIZE(o)))) {
+        PyObject *r = PyTuple_GET_ITEM(o, wrapped_i);
+        Py_INCREF(r);
+        return r;
+    }
+    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+#else
+    return PySequence_GetItem(o, i);
+#endif
+}
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i, int is_list,
+                                                     CYTHON_NCP_UNUSED int wraparound,
+                                                     CYTHON_NCP_UNUSED int boundscheck) {
+#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS && CYTHON_USE_TYPE_SLOTS
+    if (is_list || PyList_CheckExact(o)) {
+        Py_ssize_t n = ((!wraparound) | likely(i >= 0)) ? i : i + PyList_GET_SIZE(o);
+        if ((!boundscheck) || (likely(__Pyx_is_valid_index(n, PyList_GET_SIZE(o))))) {
+            PyObject *r = PyList_GET_ITEM(o, n);
+            Py_INCREF(r);
+            return r;
+        }
+    }
+    else if (PyTuple_CheckExact(o)) {
+        Py_ssize_t n = ((!wraparound) | likely(i >= 0)) ? i : i + PyTuple_GET_SIZE(o);
+        if ((!boundscheck) || likely(__Pyx_is_valid_index(n, PyTuple_GET_SIZE(o)))) {
+            PyObject *r = PyTuple_GET_ITEM(o, n);
+            Py_INCREF(r);
+            return r;
+        }
+    } else {
+        PyMappingMethods *mm = Py_TYPE(o)->tp_as_mapping;
+        PySequenceMethods *sm = Py_TYPE(o)->tp_as_sequence;
+        if (mm && mm->mp_subscript) {
+            PyObject *r, *key = PyInt_FromSsize_t(i);
+            if (unlikely(!key)) return NULL;
+            r = mm->mp_subscript(o, key);
+            Py_DECREF(key);
+            return r;
+        }
+        if (likely(sm && sm->sq_item)) {
+            if (wraparound && unlikely(i < 0) && likely(sm->sq_length)) {
+                Py_ssize_t l = sm->sq_length(o);
+                if (likely(l >= 0)) {
+                    i += l;
+                } else {
+                    if (!PyErr_ExceptionMatches(PyExc_OverflowError))
+                        return NULL;
+                    PyErr_Clear();
+                }
+            }
+            return sm->sq_item(o, i);
+        }
+    }
+#else
+    if (is_list || !PyMapping_Check(o)) {
+        return PySequence_GetItem(o, i);
+    }
+#endif
+    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+}
+
+/* PyObjectCallOneArg */
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+    PyObject *args[2] = {NULL, arg};
+    return __Pyx_PyObject_FastCall(func, args+1, 1 | __Pyx_PY_VECTORCALL_ARGUMENTS_OFFSET);
+}
+
+/* ObjectGetItem */
+#if CYTHON_USE_TYPE_SLOTS
+static PyObject *__Pyx_PyObject_GetIndex(PyObject *obj, PyObject *index) {
+    PyObject *runerr = NULL;
+    Py_ssize_t key_value;
+    key_value = __Pyx_PyIndex_AsSsize_t(index);
+    if (likely(key_value != -1 || !(runerr = PyErr_Occurred()))) {
+        return __Pyx_GetItemInt_Fast(obj, key_value, 0, 1, 1);
+    }
+    if (PyErr_GivenExceptionMatches(runerr, PyExc_OverflowError)) {
+        __Pyx_TypeName index_type_name = __Pyx_PyType_GetName(Py_TYPE(index));
+        PyErr_Clear();
+        PyErr_Format(PyExc_IndexError,
+            "cannot fit '" __Pyx_FMT_TYPENAME "' into an index-sized integer", index_type_name);
+        __Pyx_DECREF_TypeName(index_type_name);
+    }
+    return NULL;
+}
+static PyObject *__Pyx_PyObject_GetItem_Slow(PyObject *obj, PyObject *key) {
+    __Pyx_TypeName obj_type_name;
+    if (likely(PyType_Check(obj))) {
+        PyObject *meth = __Pyx_PyObject_GetAttrStrNoError(obj, __pyx_n_s_class_getitem);
+        if (!meth) {
+            PyErr_Clear();
+        } else {
+            PyObject *result = __Pyx_PyObject_CallOneArg(meth, key);
+            Py_DECREF(meth);
+            return result;
+        }
+    }
+    obj_type_name = __Pyx_PyType_GetName(Py_TYPE(obj));
+    PyErr_Format(PyExc_TypeError,
+        "'" __Pyx_FMT_TYPENAME "' object is not subscriptable", obj_type_name);
+    __Pyx_DECREF_TypeName(obj_type_name);
+    return NULL;
+}
+static PyObject *__Pyx_PyObject_GetItem(PyObject *obj, PyObject *key) {
+    PyTypeObject *tp = Py_TYPE(obj);
+    PyMappingMethods *mm = tp->tp_as_mapping;
+    PySequenceMethods *sm = tp->tp_as_sequence;
+    if (likely(mm && mm->mp_subscript)) {
+        return mm->mp_subscript(obj, key);
+    }
+    if (likely(sm && sm->sq_item)) {
+        return __Pyx_PyObject_GetIndex(obj, key);
+    }
+    return __Pyx_PyObject_GetItem_Slow(obj, key);
+}
+#endif
+
+/* KeywordStringCheck */
+static int __Pyx_CheckKeywordStrings(
+    PyObject *kw,
+    const char* function_name,
+    int kw_allowed)
+{
+    PyObject* key = 0;
+    Py_ssize_t pos = 0;
+#if CYTHON_COMPILING_IN_PYPY
+    if (!kw_allowed && PyDict_Next(kw, &pos, &key, 0))
+        goto invalid_keyword;
+    return 1;
+#else
+    if (CYTHON_METH_FASTCALL && likely(PyTuple_Check(kw))) {
+        Py_ssize_t kwsize;
+#if CYTHON_ASSUME_SAFE_MACROS
+        kwsize = PyTuple_GET_SIZE(kw);
+#else
+        kwsize = PyTuple_Size(kw);
+        if (kwsize < 0) return 0;
+#endif
+        if (unlikely(kwsize == 0))
+            return 1;
+        if (!kw_allowed) {
+#if CYTHON_ASSUME_SAFE_MACROS
+            key = PyTuple_GET_ITEM(kw, 0);
+#else
+            key = PyTuple_GetItem(kw, pos);
+            if (!key) return 0;
+#endif
+            goto invalid_keyword;
+        }
+#if PY_VERSION_HEX < 0x03090000
+        for (pos = 0; pos < kwsize; pos++) {
+#if CYTHON_ASSUME_SAFE_MACROS
+            key = PyTuple_GET_ITEM(kw, pos);
+#else
+            key = PyTuple_GetItem(kw, pos);
+            if (!key) return 0;
+#endif
+            if (unlikely(!PyUnicode_Check(key)))
+                goto invalid_keyword_type;
+        }
+#endif
+        return 1;
+    }
+    while (PyDict_Next(kw, &pos, &key, 0)) {
+        #if PY_MAJOR_VERSION < 3
+        if (unlikely(!PyString_Check(key)))
+        #endif
+            if (unlikely(!PyUnicode_Check(key)))
+                goto invalid_keyword_type;
+    }
+    if (!kw_allowed && unlikely(key))
+        goto invalid_keyword;
+    return 1;
+invalid_keyword_type:
+    PyErr_Format(PyExc_TypeError,
+        "%.200s() keywords must be strings", function_name);
+    return 0;
+#endif
+invalid_keyword:
+    #if PY_MAJOR_VERSION < 3
+    PyErr_Format(PyExc_TypeError,
+        "%.200s() got an unexpected keyword argument '%.200s'",
+        function_name, PyString_AsString(key));
+    #else
+    PyErr_Format(PyExc_TypeError,
+        "%s() got an unexpected keyword argument '%U'",
+        function_name, key);
+    #endif
+    return 0;
+}
+
+/* DivInt[Py_ssize_t] */
+static CYTHON_INLINE Py_ssize_t __Pyx_div_Py_ssize_t(Py_ssize_t a, Py_ssize_t b) {
+    Py_ssize_t q = a / b;
+    Py_ssize_t r = a - q*b;
+    q -= ((r != 0) & ((r ^ b) < 0));
+    return q;
+}
+
+/* GetAttr3 */
+#if __PYX_LIMITED_VERSION_HEX < 0x030d00A1
+static PyObject *__Pyx_GetAttr3Default(PyObject *d) {
+    __Pyx_PyThreadState_declare
+    __Pyx_PyThreadState_assign
+    if (unlikely(!__Pyx_PyErr_ExceptionMatches(PyExc_AttributeError)))
+        return NULL;
+    __Pyx_PyErr_Clear();
+    Py_INCREF(d);
+    return d;
+}
+#endif
+static CYTHON_INLINE PyObject *__Pyx_GetAttr3(PyObject *o, PyObject *n, PyObject *d) {
+    PyObject *r;
+#if __PYX_LIMITED_VERSION_HEX >= 0x030d00A1
+    int res = PyObject_GetOptionalAttr(o, n, &r);
+    return (res != 0) ? r : __Pyx_NewRef(d);
+#else
+  #if CYTHON_USE_TYPE_SLOTS
+    if (likely(PyString_Check(n))) {
+        r = __Pyx_PyObject_GetAttrStrNoError(o, n);
+        if (unlikely(!r) && likely(!PyErr_Occurred())) {
+            r = __Pyx_NewRef(d);
+        }
+        return r;
     }
-    Py_CLEAR(__pyx_m);
-  } else if (!PyErr_Occurred()) {
-    PyErr_SetString(PyExc_ImportError, "init voxelize");
-  }
-  __pyx_L0:;
-  __Pyx_RefNannyFinishContext();
-  #if CYTHON_PEP489_MULTI_PHASE_INIT
-  return (__pyx_m != NULL) ? 0 : -1;
-  #elif PY_MAJOR_VERSION >= 3
-  return __pyx_m;
-  #else
-  return;
   #endif
+    r = PyObject_GetAttr(o, n);
+    return (likely(r)) ? r : __Pyx_GetAttr3Default(d);
+#endif
 }
 
-/* --- Runtime support code --- */
-/* Refnanny */
-#if CYTHON_REFNANNY
-static __Pyx_RefNannyAPIStruct *__Pyx_RefNannyImportAPI(const char *modname) {
-    PyObject *m = NULL, *p = NULL;
-    void *r = NULL;
-    m = PyImport_ImportModule(modname);
-    if (!m) goto end;
-    p = PyObject_GetAttrString(m, "RefNannyAPI");
-    if (!p) goto end;
-    r = PyLong_AsVoidPtr(p);
-end:
-    Py_XDECREF(p);
-    Py_XDECREF(m);
-    return (__Pyx_RefNannyAPIStruct *)r;
+/* PyDictVersioning */
+#if CYTHON_USE_DICT_VERSIONS && CYTHON_USE_TYPE_SLOTS
+static CYTHON_INLINE PY_UINT64_T __Pyx_get_tp_dict_version(PyObject *obj) {
+    PyObject *dict = Py_TYPE(obj)->tp_dict;
+    return likely(dict) ? __PYX_GET_DICT_VERSION(dict) : 0;
 }
+static CYTHON_INLINE PY_UINT64_T __Pyx_get_object_dict_version(PyObject *obj) {
+    PyObject **dictptr = NULL;
+    Py_ssize_t offset = Py_TYPE(obj)->tp_dictoffset;
+    if (offset) {
+#if CYTHON_COMPILING_IN_CPYTHON
+        dictptr = (likely(offset > 0)) ? (PyObject **) ((char *)obj + offset) : _PyObject_GetDictPtr(obj);
+#else
+        dictptr = _PyObject_GetDictPtr(obj);
 #endif
-
-/* PyObjectGetAttrStr */
-#if CYTHON_USE_TYPE_SLOTS
-static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStr(PyObject* obj, PyObject* attr_name) {
-    PyTypeObject* tp = Py_TYPE(obj);
-    if (likely(tp->tp_getattro))
-        return tp->tp_getattro(obj, attr_name);
-#if PY_MAJOR_VERSION < 3
-    if (likely(tp->tp_getattr))
-        return tp->tp_getattr(obj, PyString_AS_STRING(attr_name));
-#endif
-    return PyObject_GetAttr(obj, attr_name);
+    }
+    return (dictptr && *dictptr) ? __PYX_GET_DICT_VERSION(*dictptr) : 0;
+}
+static CYTHON_INLINE int __Pyx_object_dict_version_matches(PyObject* obj, PY_UINT64_T tp_dict_version, PY_UINT64_T obj_dict_version) {
+    PyObject *dict = Py_TYPE(obj)->tp_dict;
+    if (unlikely(!dict) || unlikely(tp_dict_version != __PYX_GET_DICT_VERSION(dict)))
+        return 0;
+    return obj_dict_version == __Pyx_get_object_dict_version(obj);
 }
 #endif
 
-/* GetBuiltinName */
-static PyObject *__Pyx_GetBuiltinName(PyObject *name) {
-    PyObject* result = __Pyx_PyObject_GetAttrStr(__pyx_b, name);
-    if (unlikely(!result)) {
-        PyErr_Format(PyExc_NameError,
-#if PY_MAJOR_VERSION >= 3
-            "name '%U' is not defined", name);
+/* GetModuleGlobalName */
+#if CYTHON_USE_DICT_VERSIONS
+static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_version, PyObject **dict_cached_value)
 #else
-            "name '%.200s' is not defined", PyString_AS_STRING(name));
+static CYTHON_INLINE PyObject *__Pyx__GetModuleGlobalName(PyObject *name)
 #endif
-    }
-    return result;
-}
-
-/* MemviewSliceInit */
-static int
-__Pyx_init_memviewslice(struct __pyx_memoryview_obj *memview,
-                        int ndim,
-                        __Pyx_memviewslice *memviewslice,
-                        int memview_is_new_reference)
 {
-    __Pyx_RefNannyDeclarations
-    int i, retval=-1;
-    Py_buffer *buf = &memview->view;
-    __Pyx_RefNannySetupContext("init_memviewslice", 0);
-    if (unlikely(memviewslice->memview || memviewslice->data)) {
-        PyErr_SetString(PyExc_ValueError,
-            "memviewslice is already initialized!");
-        goto fail;
+    PyObject *result;
+#if !CYTHON_AVOID_BORROWED_REFS
+#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030500A1 && PY_VERSION_HEX < 0x030d0000
+    result = _PyDict_GetItem_KnownHash(__pyx_d, name, ((PyASCIIObject *) name)->hash);
+    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
+    if (likely(result)) {
+        return __Pyx_NewRef(result);
+    } else if (unlikely(PyErr_Occurred())) {
+        return NULL;
     }
-    if (buf->strides) {
-        for (i = 0; i < ndim; i++) {
-            memviewslice->strides[i] = buf->strides[i];
-        }
-    } else {
-        Py_ssize_t stride = buf->itemsize;
-        for (i = ndim - 1; i >= 0; i--) {
-            memviewslice->strides[i] = stride;
-            stride *= buf->shape[i];
-        }
+#elif CYTHON_COMPILING_IN_LIMITED_API
+    if (unlikely(!__pyx_m)) {
+        return NULL;
     }
-    for (i = 0; i < ndim; i++) {
-        memviewslice->shape[i]   = buf->shape[i];
-        if (buf->suboffsets) {
-            memviewslice->suboffsets[i] = buf->suboffsets[i];
-        } else {
-            memviewslice->suboffsets[i] = -1;
-        }
+    result = PyObject_GetAttr(__pyx_m, name);
+    if (likely(result)) {
+        return result;
     }
-    memviewslice->memview = memview;
-    memviewslice->data = (char *)buf->buf;
-    if (__pyx_add_acquisition_count(memview) == 0 && !memview_is_new_reference) {
-        Py_INCREF(memview);
+#else
+    result = PyDict_GetItem(__pyx_d, name);
+    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
+    if (likely(result)) {
+        return __Pyx_NewRef(result);
     }
-    retval = 0;
-    goto no_fail;
-fail:
-    memviewslice->memview = 0;
-    memviewslice->data = 0;
-    retval = -1;
-no_fail:
-    __Pyx_RefNannyFinishContext();
-    return retval;
-}
-#ifndef Py_NO_RETURN
-#define Py_NO_RETURN
 #endif
-static void __pyx_fatalerror(const char *fmt, ...) Py_NO_RETURN {
-    va_list vargs;
-    char msg[200];
-#ifdef HAVE_STDARG_PROTOTYPES
-    va_start(vargs, fmt);
 #else
-    va_start(vargs);
+    result = PyObject_GetItem(__pyx_d, name);
+    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
+    if (likely(result)) {
+        return __Pyx_NewRef(result);
+    }
+    PyErr_Clear();
 #endif
-    vsnprintf(msg, 200, fmt, vargs);
-    va_end(vargs);
-    Py_FatalError(msg);
+    return __Pyx_GetBuiltinName(name);
 }
-static CYTHON_INLINE int
-__pyx_add_acquisition_count_locked(__pyx_atomic_int *acquisition_count,
-                                   PyThread_type_lock lock)
-{
-    int result;
-    PyThread_acquire_lock(lock, 1);
-    result = (*acquisition_count)++;
-    PyThread_release_lock(lock);
-    return result;
+
+/* RaiseTooManyValuesToUnpack */
+static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected) {
+    PyErr_Format(PyExc_ValueError,
+                 "too many values to unpack (expected %" CYTHON_FORMAT_SSIZE_T "d)", expected);
 }
-static CYTHON_INLINE int
-__pyx_sub_acquisition_count_locked(__pyx_atomic_int *acquisition_count,
-                                   PyThread_type_lock lock)
-{
-    int result;
-    PyThread_acquire_lock(lock, 1);
-    result = (*acquisition_count)--;
-    PyThread_release_lock(lock);
-    return result;
+
+/* RaiseNeedMoreValuesToUnpack */
+static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index) {
+    PyErr_Format(PyExc_ValueError,
+                 "need more than %" CYTHON_FORMAT_SSIZE_T "d value%.1s to unpack",
+                 index, (index == 1) ? "" : "s");
 }
-static CYTHON_INLINE void
-__Pyx_INC_MEMVIEW(__Pyx_memviewslice *memslice, int have_gil, int lineno)
-{
-    int first_time;
-    struct __pyx_memoryview_obj *memview = memslice->memview;
-    if (unlikely(!memview || (PyObject *) memview == Py_None))
-        return;
-    if (unlikely(__pyx_get_slice_count(memview) < 0))
-        __pyx_fatalerror("Acquisition count is %d (line %d)",
-                         __pyx_get_slice_count(memview), lineno);
-    first_time = __pyx_add_acquisition_count(memview) == 0;
-    if (unlikely(first_time)) {
-        if (have_gil) {
-            Py_INCREF((PyObject *) memview);
-        } else {
-            PyGILState_STATE _gilstate = PyGILState_Ensure();
-            Py_INCREF((PyObject *) memview);
-            PyGILState_Release(_gilstate);
-        }
-    }
+
+/* RaiseNoneIterError */
+static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void) {
+    PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable");
 }
-static CYTHON_INLINE void __Pyx_XDEC_MEMVIEW(__Pyx_memviewslice *memslice,
-                                             int have_gil, int lineno) {
-    int last_time;
-    struct __pyx_memoryview_obj *memview = memslice->memview;
-    if (unlikely(!memview || (PyObject *) memview == Py_None)) {
-        memslice->memview = NULL;
-        return;
+
+/* ExtTypeTest */
+static CYTHON_INLINE int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type) {
+    __Pyx_TypeName obj_type_name;
+    __Pyx_TypeName type_name;
+    if (unlikely(!type)) {
+        PyErr_SetString(PyExc_SystemError, "Missing type object");
+        return 0;
     }
-    if (unlikely(__pyx_get_slice_count(memview) <= 0))
-        __pyx_fatalerror("Acquisition count is %d (line %d)",
-                         __pyx_get_slice_count(memview), lineno);
-    last_time = __pyx_sub_acquisition_count(memview) == 1;
-    memslice->data = NULL;
-    if (unlikely(last_time)) {
-        if (have_gil) {
-            Py_CLEAR(memslice->memview);
-        } else {
-            PyGILState_STATE _gilstate = PyGILState_Ensure();
-            Py_CLEAR(memslice->memview);
-            PyGILState_Release(_gilstate);
-        }
-    } else {
-        memslice->memview = NULL;
+    if (likely(__Pyx_TypeCheck(obj, type)))
+        return 1;
+    obj_type_name = __Pyx_PyType_GetName(Py_TYPE(obj));
+    type_name = __Pyx_PyType_GetName(type);
+    PyErr_Format(PyExc_TypeError,
+                 "Cannot convert " __Pyx_FMT_TYPENAME " to " __Pyx_FMT_TYPENAME,
+                 obj_type_name, type_name);
+    __Pyx_DECREF_TypeName(obj_type_name);
+    __Pyx_DECREF_TypeName(type_name);
+    return 0;
+}
+
+/* GetTopmostException */
+#if CYTHON_USE_EXC_INFO_STACK && CYTHON_FAST_THREAD_STATE
+static _PyErr_StackItem *
+__Pyx_PyErr_GetTopmostException(PyThreadState *tstate)
+{
+    _PyErr_StackItem *exc_info = tstate->exc_info;
+    while ((exc_info->exc_value == NULL || exc_info->exc_value == Py_None) &&
+           exc_info->previous_item != NULL)
+    {
+        exc_info = exc_info->previous_item;
     }
+    return exc_info;
 }
+#endif
 
-/* PyErrFetchRestore */
+/* SaveResetException */
 #if CYTHON_FAST_THREAD_STATE
-static CYTHON_INLINE void __Pyx_ErrRestoreInState(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
+static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
+  #if CYTHON_USE_EXC_INFO_STACK && PY_VERSION_HEX >= 0x030B00a4
+    _PyErr_StackItem *exc_info = __Pyx_PyErr_GetTopmostException(tstate);
+    PyObject *exc_value = exc_info->exc_value;
+    if (exc_value == NULL || exc_value == Py_None) {
+        *value = NULL;
+        *type = NULL;
+        *tb = NULL;
+    } else {
+        *value = exc_value;
+        Py_INCREF(*value);
+        *type = (PyObject*) Py_TYPE(exc_value);
+        Py_INCREF(*type);
+        *tb = PyException_GetTraceback(exc_value);
+    }
+  #elif CYTHON_USE_EXC_INFO_STACK
+    _PyErr_StackItem *exc_info = __Pyx_PyErr_GetTopmostException(tstate);
+    *type = exc_info->exc_type;
+    *value = exc_info->exc_value;
+    *tb = exc_info->exc_traceback;
+    Py_XINCREF(*type);
+    Py_XINCREF(*value);
+    Py_XINCREF(*tb);
+  #else
+    *type = tstate->exc_type;
+    *value = tstate->exc_value;
+    *tb = tstate->exc_traceback;
+    Py_XINCREF(*type);
+    Py_XINCREF(*value);
+    Py_XINCREF(*tb);
+  #endif
+}
+static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
+  #if CYTHON_USE_EXC_INFO_STACK && PY_VERSION_HEX >= 0x030B00a4
+    _PyErr_StackItem *exc_info = tstate->exc_info;
+    PyObject *tmp_value = exc_info->exc_value;
+    exc_info->exc_value = value;
+    Py_XDECREF(tmp_value);
+    Py_XDECREF(type);
+    Py_XDECREF(tb);
+  #else
     PyObject *tmp_type, *tmp_value, *tmp_tb;
-    tmp_type = tstate->curexc_type;
-    tmp_value = tstate->curexc_value;
-    tmp_tb = tstate->curexc_traceback;
-    tstate->curexc_type = type;
-    tstate->curexc_value = value;
-    tstate->curexc_traceback = tb;
+    #if CYTHON_USE_EXC_INFO_STACK
+    _PyErr_StackItem *exc_info = tstate->exc_info;
+    tmp_type = exc_info->exc_type;
+    tmp_value = exc_info->exc_value;
+    tmp_tb = exc_info->exc_traceback;
+    exc_info->exc_type = type;
+    exc_info->exc_value = value;
+    exc_info->exc_traceback = tb;
+    #else
+    tmp_type = tstate->exc_type;
+    tmp_value = tstate->exc_value;
+    tmp_tb = tstate->exc_traceback;
+    tstate->exc_type = type;
+    tstate->exc_value = value;
+    tstate->exc_traceback = tb;
+    #endif
     Py_XDECREF(tmp_type);
     Py_XDECREF(tmp_value);
     Py_XDECREF(tmp_tb);
+  #endif
 }
-static CYTHON_INLINE void __Pyx_ErrFetchInState(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
-    *type = tstate->curexc_type;
-    *value = tstate->curexc_value;
-    *tb = tstate->curexc_traceback;
+#endif
+
+/* GetException */
+#if CYTHON_FAST_THREAD_STATE
+static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb)
+#else
+static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb)
+#endif
+{
+    PyObject *local_type = NULL, *local_value, *local_tb = NULL;
+#if CYTHON_FAST_THREAD_STATE
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+  #if PY_VERSION_HEX >= 0x030C00A6
+    local_value = tstate->current_exception;
+    tstate->current_exception = 0;
+    if (likely(local_value)) {
+        local_type = (PyObject*) Py_TYPE(local_value);
+        Py_INCREF(local_type);
+        local_tb = PyException_GetTraceback(local_value);
+    }
+  #else
+    local_type = tstate->curexc_type;
+    local_value = tstate->curexc_value;
+    local_tb = tstate->curexc_traceback;
     tstate->curexc_type = 0;
     tstate->curexc_value = 0;
     tstate->curexc_traceback = 0;
-}
-#endif
-
-/* WriteUnraisableException */
-static void __Pyx_WriteUnraisable(const char *name, CYTHON_UNUSED int clineno,
-                                  CYTHON_UNUSED int lineno, CYTHON_UNUSED const char *filename,
-                                  int full_traceback, CYTHON_UNUSED int nogil) {
-    PyObject *old_exc, *old_val, *old_tb;
-    PyObject *ctx;
-    __Pyx_PyThreadState_declare
-#ifdef WITH_THREAD
-    PyGILState_STATE state;
-    if (nogil)
-        state = PyGILState_Ensure();
-#ifdef _MSC_VER
-    else state = (PyGILState_STATE)-1;
+  #endif
+#else
+    PyErr_Fetch(&local_type, &local_value, &local_tb);
 #endif
+    PyErr_NormalizeException(&local_type, &local_value, &local_tb);
+#if CYTHON_FAST_THREAD_STATE && PY_VERSION_HEX >= 0x030C00A6
+    if (unlikely(tstate->current_exception))
+#elif CYTHON_FAST_THREAD_STATE
+    if (unlikely(tstate->curexc_type))
+#else
+    if (unlikely(PyErr_Occurred()))
 #endif
-    __Pyx_PyThreadState_assign
-    __Pyx_ErrFetch(&old_exc, &old_val, &old_tb);
-    if (full_traceback) {
-        Py_XINCREF(old_exc);
-        Py_XINCREF(old_val);
-        Py_XINCREF(old_tb);
-        __Pyx_ErrRestore(old_exc, old_val, old_tb);
-        PyErr_PrintEx(1);
+        goto bad;
+    #if PY_MAJOR_VERSION >= 3
+    if (local_tb) {
+        if (unlikely(PyException_SetTraceback(local_value, local_tb) < 0))
+            goto bad;
     }
-    #if PY_MAJOR_VERSION < 3
-    ctx = PyString_FromString(name);
-    #else
-    ctx = PyUnicode_FromString(name);
     #endif
-    __Pyx_ErrRestore(old_exc, old_val, old_tb);
-    if (!ctx) {
-        PyErr_WriteUnraisable(Py_None);
-    } else {
-        PyErr_WriteUnraisable(ctx);
-        Py_DECREF(ctx);
+    Py_XINCREF(local_tb);
+    Py_XINCREF(local_type);
+    Py_XINCREF(local_value);
+    *type = local_type;
+    *value = local_value;
+    *tb = local_tb;
+#if CYTHON_FAST_THREAD_STATE
+    #if CYTHON_USE_EXC_INFO_STACK
+    {
+        _PyErr_StackItem *exc_info = tstate->exc_info;
+      #if PY_VERSION_HEX >= 0x030B00a4
+        tmp_value = exc_info->exc_value;
+        exc_info->exc_value = local_value;
+        tmp_type = NULL;
+        tmp_tb = NULL;
+        Py_XDECREF(local_type);
+        Py_XDECREF(local_tb);
+      #else
+        tmp_type = exc_info->exc_type;
+        tmp_value = exc_info->exc_value;
+        tmp_tb = exc_info->exc_traceback;
+        exc_info->exc_type = local_type;
+        exc_info->exc_value = local_value;
+        exc_info->exc_traceback = local_tb;
+      #endif
     }
-#ifdef WITH_THREAD
-    if (nogil)
-        PyGILState_Release(state);
+    #else
+    tmp_type = tstate->exc_type;
+    tmp_value = tstate->exc_value;
+    tmp_tb = tstate->exc_traceback;
+    tstate->exc_type = local_type;
+    tstate->exc_value = local_value;
+    tstate->exc_traceback = local_tb;
+    #endif
+    Py_XDECREF(tmp_type);
+    Py_XDECREF(tmp_value);
+    Py_XDECREF(tmp_tb);
+#else
+    PyErr_SetExcInfo(local_type, local_value, local_tb);
 #endif
+    return 0;
+bad:
+    *type = 0;
+    *value = 0;
+    *tb = 0;
+    Py_XDECREF(local_type);
+    Py_XDECREF(local_value);
+    Py_XDECREF(local_tb);
+    return -1;
 }
 
-/* RaiseArgTupleInvalid */
-static void __Pyx_RaiseArgtupleInvalid(
-    const char* func_name,
-    int exact,
-    Py_ssize_t num_min,
-    Py_ssize_t num_max,
-    Py_ssize_t num_found)
-{
-    Py_ssize_t num_expected;
-    const char *more_or_less;
-    if (num_found < num_min) {
-        num_expected = num_min;
-        more_or_less = "at least";
+/* SwapException */
+#if CYTHON_FAST_THREAD_STATE
+static CYTHON_INLINE void __Pyx__ExceptionSwap(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+  #if CYTHON_USE_EXC_INFO_STACK && PY_VERSION_HEX >= 0x030B00a4
+    _PyErr_StackItem *exc_info = tstate->exc_info;
+    tmp_value = exc_info->exc_value;
+    exc_info->exc_value = *value;
+    if (tmp_value == NULL || tmp_value == Py_None) {
+        Py_XDECREF(tmp_value);
+        tmp_value = NULL;
+        tmp_type = NULL;
+        tmp_tb = NULL;
     } else {
-        num_expected = num_max;
-        more_or_less = "at most";
-    }
-    if (exact) {
-        more_or_less = "exactly";
-    }
-    PyErr_Format(PyExc_TypeError,
-                 "%.200s() takes %.8s %" CYTHON_FORMAT_SSIZE_T "d positional argument%.1s (%" CYTHON_FORMAT_SSIZE_T "d given)",
-                 func_name, more_or_less, num_expected,
-                 (num_expected == 1) ? "" : "s", num_found);
-}
-
-/* RaiseDoubleKeywords */
-static void __Pyx_RaiseDoubleKeywordsError(
-    const char* func_name,
-    PyObject* kw_name)
-{
-    PyErr_Format(PyExc_TypeError,
-        #if PY_MAJOR_VERSION >= 3
-        "%s() got multiple values for keyword argument '%U'", func_name, kw_name);
+        tmp_type = (PyObject*) Py_TYPE(tmp_value);
+        Py_INCREF(tmp_type);
+        #if CYTHON_COMPILING_IN_CPYTHON
+        tmp_tb = ((PyBaseExceptionObject*) tmp_value)->traceback;
+        Py_XINCREF(tmp_tb);
         #else
-        "%s() got multiple values for keyword argument '%s'", func_name,
-        PyString_AsString(kw_name));
+        tmp_tb = PyException_GetTraceback(tmp_value);
         #endif
+    }
+  #elif CYTHON_USE_EXC_INFO_STACK
+    _PyErr_StackItem *exc_info = tstate->exc_info;
+    tmp_type = exc_info->exc_type;
+    tmp_value = exc_info->exc_value;
+    tmp_tb = exc_info->exc_traceback;
+    exc_info->exc_type = *type;
+    exc_info->exc_value = *value;
+    exc_info->exc_traceback = *tb;
+  #else
+    tmp_type = tstate->exc_type;
+    tmp_value = tstate->exc_value;
+    tmp_tb = tstate->exc_traceback;
+    tstate->exc_type = *type;
+    tstate->exc_value = *value;
+    tstate->exc_traceback = *tb;
+  #endif
+    *type = tmp_type;
+    *value = tmp_value;
+    *tb = tmp_tb;
+}
+#else
+static CYTHON_INLINE void __Pyx_ExceptionSwap(PyObject **type, PyObject **value, PyObject **tb) {
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+    PyErr_GetExcInfo(&tmp_type, &tmp_value, &tmp_tb);
+    PyErr_SetExcInfo(*type, *value, *tb);
+    *type = tmp_type;
+    *value = tmp_value;
+    *tb = tmp_tb;
 }
+#endif
 
-/* ParseKeywords */
-static int __Pyx_ParseOptionalKeywords(
-    PyObject *kwds,
-    PyObject **argnames[],
-    PyObject *kwds2,
-    PyObject *values[],
-    Py_ssize_t num_pos_args,
-    const char* function_name)
-{
-    PyObject *key = 0, *value = 0;
-    Py_ssize_t pos = 0;
-    PyObject*** name;
-    PyObject*** first_kw_arg = argnames + num_pos_args;
-    while (PyDict_Next(kwds, &pos, &key, &value)) {
-        name = first_kw_arg;
-        while (*name && (**name != key)) name++;
-        if (*name) {
-            values[name-argnames] = value;
-            continue;
-        }
-        name = first_kw_arg;
-        #if PY_MAJOR_VERSION < 3
-        if (likely(PyString_Check(key))) {
-            while (*name) {
-                if ((CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**name) == PyString_GET_SIZE(key))
-                        && _PyString_Eq(**name, key)) {
-                    values[name-argnames] = value;
-                    break;
-                }
-                name++;
-            }
-            if (*name) continue;
-            else {
-                PyObject*** argname = argnames;
-                while (argname != first_kw_arg) {
-                    if ((**argname == key) || (
-                            (CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**argname) == PyString_GET_SIZE(key))
-                             && _PyString_Eq(**argname, key))) {
-                        goto arg_passed_twice;
-                    }
-                    argname++;
-                }
-            }
-        } else
-        #endif
-        if (likely(PyUnicode_Check(key))) {
-            while (*name) {
-                int cmp = (**name == key) ? 0 :
-                #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
-                    (__Pyx_PyUnicode_GET_LENGTH(**name) != __Pyx_PyUnicode_GET_LENGTH(key)) ? 1 :
-                #endif
-                    PyUnicode_Compare(**name, key);
-                if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
-                if (cmp == 0) {
-                    values[name-argnames] = value;
-                    break;
-                }
-                name++;
-            }
-            if (*name) continue;
-            else {
-                PyObject*** argname = argnames;
-                while (argname != first_kw_arg) {
-                    int cmp = (**argname == key) ? 0 :
-                    #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
-                        (__Pyx_PyUnicode_GET_LENGTH(**argname) != __Pyx_PyUnicode_GET_LENGTH(key)) ? 1 :
-                    #endif
-                        PyUnicode_Compare(**argname, key);
-                    if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
-                    if (cmp == 0) goto arg_passed_twice;
-                    argname++;
+/* Import */
+static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, int level) {
+    PyObject *module = 0;
+    PyObject *empty_dict = 0;
+    PyObject *empty_list = 0;
+    #if PY_MAJOR_VERSION < 3
+    PyObject *py_import;
+    py_import = __Pyx_PyObject_GetAttrStr(__pyx_b, __pyx_n_s_import);
+    if (unlikely(!py_import))
+        goto bad;
+    if (!from_list) {
+        empty_list = PyList_New(0);
+        if (unlikely(!empty_list))
+            goto bad;
+        from_list = empty_list;
+    }
+    #endif
+    empty_dict = PyDict_New();
+    if (unlikely(!empty_dict))
+        goto bad;
+    {
+        #if PY_MAJOR_VERSION >= 3
+        if (level == -1) {
+            if (strchr(__Pyx_MODULE_NAME, '.') != NULL) {
+                module = PyImport_ImportModuleLevelObject(
+                    name, __pyx_d, empty_dict, from_list, 1);
+                if (unlikely(!module)) {
+                    if (unlikely(!PyErr_ExceptionMatches(PyExc_ImportError)))
+                        goto bad;
+                    PyErr_Clear();
                 }
             }
-        } else
-            goto invalid_keyword_type;
-        if (kwds2) {
-            if (unlikely(PyDict_SetItem(kwds2, key, value))) goto bad;
-        } else {
-            goto invalid_keyword;
+            level = 0;
+        }
+        #endif
+        if (!module) {
+            #if PY_MAJOR_VERSION < 3
+            PyObject *py_level = PyInt_FromLong(level);
+            if (unlikely(!py_level))
+                goto bad;
+            module = PyObject_CallFunctionObjArgs(py_import,
+                name, __pyx_d, empty_dict, from_list, py_level, (PyObject *)NULL);
+            Py_DECREF(py_level);
+            #else
+            module = PyImport_ImportModuleLevelObject(
+                name, __pyx_d, empty_dict, from_list, level);
+            #endif
         }
     }
-    return 0;
-arg_passed_twice:
-    __Pyx_RaiseDoubleKeywordsError(function_name, key);
-    goto bad;
-invalid_keyword_type:
-    PyErr_Format(PyExc_TypeError,
-        "%.200s() keywords must be strings", function_name);
-    goto bad;
-invalid_keyword:
-    PyErr_Format(PyExc_TypeError,
+bad:
+    Py_XDECREF(empty_dict);
+    Py_XDECREF(empty_list);
     #if PY_MAJOR_VERSION < 3
-        "%.200s() got an unexpected keyword argument '%.200s'",
-        function_name, PyString_AsString(key));
-    #else
-        "%s() got an unexpected keyword argument '%U'",
-        function_name, key);
+    Py_XDECREF(py_import);
     #endif
-bad:
-    return -1;
-}
-
-/* None */
-static CYTHON_INLINE void __Pyx_RaiseUnboundLocalError(const char *varname) {
-    PyErr_Format(PyExc_UnboundLocalError, "local variable '%s' referenced before assignment", varname);
+    return module;
 }
 
-/* ArgTypeTest */
-static int __Pyx__ArgTypeTest(PyObject *obj, PyTypeObject *type, const char *name, int exact)
-{
-    if (unlikely(!type)) {
-        PyErr_SetString(PyExc_SystemError, "Missing type object");
-        return 0;
-    }
-    else if (exact) {
-        #if PY_MAJOR_VERSION == 2
-        if ((type == &PyBaseString_Type) && likely(__Pyx_PyBaseString_CheckExact(obj))) return 1;
-        #endif
+/* ImportDottedModule */
+#if PY_MAJOR_VERSION >= 3
+static PyObject *__Pyx__ImportDottedModule_Error(PyObject *name, PyObject *parts_tuple, Py_ssize_t count) {
+    PyObject *partial_name = NULL, *slice = NULL, *sep = NULL;
+    if (unlikely(PyErr_Occurred())) {
+        PyErr_Clear();
     }
-    else {
-        if (likely(__Pyx_TypeCheck(obj, type))) return 1;
+    if (likely(PyTuple_GET_SIZE(parts_tuple) == count)) {
+        partial_name = name;
+    } else {
+        slice = PySequence_GetSlice(parts_tuple, 0, count);
+        if (unlikely(!slice))
+            goto bad;
+        sep = PyUnicode_FromStringAndSize(".", 1);
+        if (unlikely(!sep))
+            goto bad;
+        partial_name = PyUnicode_Join(sep, slice);
     }
-    PyErr_Format(PyExc_TypeError,
-        "Argument '%.200s' has incorrect type (expected %.200s, got %.200s)",
-        name, type->tp_name, Py_TYPE(obj)->tp_name);
-    return 0;
+    PyErr_Format(
+#if PY_MAJOR_VERSION < 3
+        PyExc_ImportError,
+        "No module named '%s'", PyString_AS_STRING(partial_name));
+#else
+#if PY_VERSION_HEX >= 0x030600B1
+        PyExc_ModuleNotFoundError,
+#else
+        PyExc_ImportError,
+#endif
+        "No module named '%U'", partial_name);
+#endif
+bad:
+    Py_XDECREF(sep);
+    Py_XDECREF(slice);
+    Py_XDECREF(partial_name);
+    return NULL;
 }
-
-/* PyObjectCall */
-#if CYTHON_COMPILING_IN_CPYTHON
-static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw) {
-    PyObject *result;
-    ternaryfunc call = Py_TYPE(func)->tp_call;
-    if (unlikely(!call))
-        return PyObject_Call(func, arg, kw);
-    if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object")))
+#endif
+#if PY_MAJOR_VERSION >= 3
+static PyObject *__Pyx__ImportDottedModule_Lookup(PyObject *name) {
+    PyObject *imported_module;
+#if PY_VERSION_HEX < 0x030700A1 || (CYTHON_COMPILING_IN_PYPY && PYPY_VERSION_NUM  < 0x07030400)
+    PyObject *modules = PyImport_GetModuleDict();
+    if (unlikely(!modules))
         return NULL;
-    result = (*call)(func, arg, kw);
-    Py_LeaveRecursiveCall();
-    if (unlikely(!result) && unlikely(!PyErr_Occurred())) {
-        PyErr_SetString(
-            PyExc_SystemError,
-            "NULL result without error in PyObject_Call");
+    imported_module = __Pyx_PyDict_GetItemStr(modules, name);
+    Py_XINCREF(imported_module);
+#else
+    imported_module = PyImport_GetModule(name);
+#endif
+    return imported_module;
+}
+#endif
+#if PY_MAJOR_VERSION >= 3
+static PyObject *__Pyx_ImportDottedModule_WalkParts(PyObject *module, PyObject *name, PyObject *parts_tuple) {
+    Py_ssize_t i, nparts;
+    nparts = PyTuple_GET_SIZE(parts_tuple);
+    for (i=1; i < nparts && module; i++) {
+        PyObject *part, *submodule;
+#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
+        part = PyTuple_GET_ITEM(parts_tuple, i);
+#else
+        part = PySequence_ITEM(parts_tuple, i);
+#endif
+        submodule = __Pyx_PyObject_GetAttrStrNoError(module, part);
+#if !(CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS)
+        Py_DECREF(part);
+#endif
+        Py_DECREF(module);
+        module = submodule;
     }
-    return result;
+    if (unlikely(!module)) {
+        return __Pyx__ImportDottedModule_Error(name, parts_tuple, i);
+    }
+    return module;
 }
 #endif
-
-/* RaiseException */
+static PyObject *__Pyx__ImportDottedModule(PyObject *name, PyObject *parts_tuple) {
 #if PY_MAJOR_VERSION < 3
-static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb,
-                        CYTHON_UNUSED PyObject *cause) {
-    __Pyx_PyThreadState_declare
-    Py_XINCREF(type);
-    if (!value || value == Py_None)
-        value = NULL;
-    else
-        Py_INCREF(value);
-    if (!tb || tb == Py_None)
-        tb = NULL;
-    else {
-        Py_INCREF(tb);
-        if (!PyTraceBack_Check(tb)) {
-            PyErr_SetString(PyExc_TypeError,
-                "raise: arg 3 must be a traceback or None");
-            goto raise_error;
-        }
+    PyObject *module, *from_list, *star = __pyx_n_s__3;
+    CYTHON_UNUSED_VAR(parts_tuple);
+    from_list = PyList_New(1);
+    if (unlikely(!from_list))
+        return NULL;
+    Py_INCREF(star);
+    PyList_SET_ITEM(from_list, 0, star);
+    module = __Pyx_Import(name, from_list, 0);
+    Py_DECREF(from_list);
+    return module;
+#else
+    PyObject *imported_module;
+    PyObject *module = __Pyx_Import(name, NULL, 0);
+    if (!parts_tuple || unlikely(!module))
+        return module;
+    imported_module = __Pyx__ImportDottedModule_Lookup(name);
+    if (likely(imported_module)) {
+        Py_DECREF(module);
+        return imported_module;
     }
-    if (PyType_Check(type)) {
-#if CYTHON_COMPILING_IN_PYPY
-        if (!value) {
-            Py_INCREF(Py_None);
-            value = Py_None;
-        }
+    PyErr_Clear();
+    return __Pyx_ImportDottedModule_WalkParts(module, name, parts_tuple);
 #endif
-        PyErr_NormalizeException(&type, &value, &tb);
-    } else {
-        if (value) {
-            PyErr_SetString(PyExc_TypeError,
-                "instance exception may not have a separate value");
-            goto raise_error;
+}
+static PyObject *__Pyx_ImportDottedModule(PyObject *name, PyObject *parts_tuple) {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030400B1
+    PyObject *module = __Pyx__ImportDottedModule_Lookup(name);
+    if (likely(module)) {
+        PyObject *spec = __Pyx_PyObject_GetAttrStrNoError(module, __pyx_n_s_spec);
+        if (likely(spec)) {
+            PyObject *unsafe = __Pyx_PyObject_GetAttrStrNoError(spec, __pyx_n_s_initializing);
+            if (likely(!unsafe || !__Pyx_PyObject_IsTrue(unsafe))) {
+                Py_DECREF(spec);
+                spec = NULL;
+            }
+            Py_XDECREF(unsafe);
         }
-        value = type;
-        type = (PyObject*) Py_TYPE(type);
-        Py_INCREF(type);
-        if (!PyType_IsSubtype((PyTypeObject *)type, (PyTypeObject *)PyExc_BaseException)) {
-            PyErr_SetString(PyExc_TypeError,
-                "raise: exception class must be a subclass of BaseException");
-            goto raise_error;
+        if (likely(!spec)) {
+            PyErr_Clear();
+            return module;
         }
+        Py_DECREF(spec);
+        Py_DECREF(module);
+    } else if (PyErr_Occurred()) {
+        PyErr_Clear();
     }
-    __Pyx_PyThreadState_assign
-    __Pyx_ErrRestore(type, value, tb);
-    return;
-raise_error:
-    Py_XDECREF(value);
-    Py_XDECREF(type);
-    Py_XDECREF(tb);
-    return;
+#endif
+    return __Pyx__ImportDottedModule(name, parts_tuple);
 }
-#else
-static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause) {
-    PyObject* owned_instance = NULL;
-    if (tb == Py_None) {
-        tb = 0;
-    } else if (tb && !PyTraceBack_Check(tb)) {
-        PyErr_SetString(PyExc_TypeError,
-            "raise: arg 3 must be a traceback or None");
-        goto bad;
+
+/* FastTypeChecks */
+#if CYTHON_COMPILING_IN_CPYTHON
+static int __Pyx_InBases(PyTypeObject *a, PyTypeObject *b) {
+    while (a) {
+        a = __Pyx_PyType_GetSlot(a, tp_base, PyTypeObject*);
+        if (a == b)
+            return 1;
     }
-    if (value == Py_None)
-        value = 0;
-    if (PyExceptionInstance_Check(type)) {
-        if (value) {
-            PyErr_SetString(PyExc_TypeError,
-                "instance exception may not have a separate value");
-            goto bad;
-        }
-        value = type;
-        type = (PyObject*) Py_TYPE(value);
-    } else if (PyExceptionClass_Check(type)) {
-        PyObject *instance_class = NULL;
-        if (value && PyExceptionInstance_Check(value)) {
-            instance_class = (PyObject*) Py_TYPE(value);
-            if (instance_class != type) {
-                int is_subclass = PyObject_IsSubclass(instance_class, type);
-                if (!is_subclass) {
-                    instance_class = NULL;
-                } else if (unlikely(is_subclass == -1)) {
-                    goto bad;
-                } else {
-                    type = instance_class;
-                }
-            }
+    return b == &PyBaseObject_Type;
+}
+static CYTHON_INLINE int __Pyx_IsSubtype(PyTypeObject *a, PyTypeObject *b) {
+    PyObject *mro;
+    if (a == b) return 1;
+    mro = a->tp_mro;
+    if (likely(mro)) {
+        Py_ssize_t i, n;
+        n = PyTuple_GET_SIZE(mro);
+        for (i = 0; i < n; i++) {
+            if (PyTuple_GET_ITEM(mro, i) == (PyObject *)b)
+                return 1;
         }
-        if (!instance_class) {
-            PyObject *args;
-            if (!value)
-                args = PyTuple_New(0);
-            else if (PyTuple_Check(value)) {
-                Py_INCREF(value);
-                args = value;
-            } else
-                args = PyTuple_Pack(1, value);
-            if (!args)
-                goto bad;
-            owned_instance = PyObject_Call(type, args, NULL);
-            Py_DECREF(args);
-            if (!owned_instance)
-                goto bad;
-            value = owned_instance;
-            if (!PyExceptionInstance_Check(value)) {
-                PyErr_Format(PyExc_TypeError,
-                             "calling %R should have returned an instance of "
-                             "BaseException, not %R",
-                             type, Py_TYPE(value));
-                goto bad;
-            }
+        return 0;
+    }
+    return __Pyx_InBases(a, b);
+}
+static CYTHON_INLINE int __Pyx_IsAnySubtype2(PyTypeObject *cls, PyTypeObject *a, PyTypeObject *b) {
+    PyObject *mro;
+    if (cls == a || cls == b) return 1;
+    mro = cls->tp_mro;
+    if (likely(mro)) {
+        Py_ssize_t i, n;
+        n = PyTuple_GET_SIZE(mro);
+        for (i = 0; i < n; i++) {
+            PyObject *base = PyTuple_GET_ITEM(mro, i);
+            if (base == (PyObject *)a || base == (PyObject *)b)
+                return 1;
+        }
+        return 0;
+    }
+    return __Pyx_InBases(cls, a) || __Pyx_InBases(cls, b);
+}
+#if PY_MAJOR_VERSION == 2
+static int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err, PyObject* exc_type1, PyObject* exc_type2) {
+    PyObject *exception, *value, *tb;
+    int res;
+    __Pyx_PyThreadState_declare
+    __Pyx_PyThreadState_assign
+    __Pyx_ErrFetch(&exception, &value, &tb);
+    res = exc_type1 ? PyObject_IsSubclass(err, exc_type1) : 0;
+    if (unlikely(res == -1)) {
+        PyErr_WriteUnraisable(err);
+        res = 0;
+    }
+    if (!res) {
+        res = PyObject_IsSubclass(err, exc_type2);
+        if (unlikely(res == -1)) {
+            PyErr_WriteUnraisable(err);
+            res = 0;
         }
+    }
+    __Pyx_ErrRestore(exception, value, tb);
+    return res;
+}
+#else
+static CYTHON_INLINE int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err, PyObject* exc_type1, PyObject *exc_type2) {
+    if (exc_type1) {
+        return __Pyx_IsAnySubtype2((PyTypeObject*)err, (PyTypeObject*)exc_type1, (PyTypeObject*)exc_type2);
     } else {
-        PyErr_SetString(PyExc_TypeError,
-            "raise: exception class must be a subclass of BaseException");
-        goto bad;
+        return __Pyx_IsSubtype((PyTypeObject*)err, (PyTypeObject*)exc_type2);
     }
-    if (cause) {
-        PyObject *fixed_cause;
-        if (cause == Py_None) {
-            fixed_cause = NULL;
-        } else if (PyExceptionClass_Check(cause)) {
-            fixed_cause = PyObject_CallObject(cause, NULL);
-            if (fixed_cause == NULL)
-                goto bad;
-        } else if (PyExceptionInstance_Check(cause)) {
-            fixed_cause = cause;
-            Py_INCREF(fixed_cause);
+}
+#endif
+static int __Pyx_PyErr_GivenExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
+    Py_ssize_t i, n;
+    assert(PyExceptionClass_Check(exc_type));
+    n = PyTuple_GET_SIZE(tuple);
+#if PY_MAJOR_VERSION >= 3
+    for (i=0; i<n; i++) {
+        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
+    }
+#endif
+    for (i=0; i<n; i++) {
+        PyObject *t = PyTuple_GET_ITEM(tuple, i);
+        #if PY_MAJOR_VERSION < 3
+        if (likely(exc_type == t)) return 1;
+        #endif
+        if (likely(PyExceptionClass_Check(t))) {
+            if (__Pyx_inner_PyErr_GivenExceptionMatches2(exc_type, NULL, t)) return 1;
         } else {
-            PyErr_SetString(PyExc_TypeError,
-                            "exception causes must derive from "
-                            "BaseException");
-            goto bad;
         }
-        PyException_SetCause(value, fixed_cause);
     }
-    PyErr_SetObject(type, value);
-    if (tb) {
-#if CYTHON_COMPILING_IN_PYPY
-        PyObject *tmp_type, *tmp_value, *tmp_tb;
-        PyErr_Fetch(&tmp_type, &tmp_value, &tmp_tb);
-        Py_INCREF(tb);
-        PyErr_Restore(tmp_type, tmp_value, tb);
-        Py_XDECREF(tmp_tb);
-#else
-        PyThreadState *tstate = __Pyx_PyThreadState_Current;
-        PyObject* tmp_tb = tstate->curexc_traceback;
-        if (tb != tmp_tb) {
-            Py_INCREF(tb);
-            tstate->curexc_traceback = tb;
-            Py_XDECREF(tmp_tb);
+    return 0;
+}
+static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches(PyObject *err, PyObject* exc_type) {
+    if (likely(err == exc_type)) return 1;
+    if (likely(PyExceptionClass_Check(err))) {
+        if (likely(PyExceptionClass_Check(exc_type))) {
+            return __Pyx_inner_PyErr_GivenExceptionMatches2(err, NULL, exc_type);
+        } else if (likely(PyTuple_Check(exc_type))) {
+            return __Pyx_PyErr_GivenExceptionMatchesTuple(err, exc_type);
+        } else {
         }
-#endif
     }
-bad:
-    Py_XDECREF(owned_instance);
-    return;
+    return PyErr_GivenExceptionMatches(err, exc_type);
 }
-#endif
-
-/* PyCFunctionFastCall */
-#if CYTHON_FAST_PYCCALL
-static CYTHON_INLINE PyObject * __Pyx_PyCFunction_FastCall(PyObject *func_obj, PyObject **args, Py_ssize_t nargs) {
-    PyCFunctionObject *func = (PyCFunctionObject*)func_obj;
-    PyCFunction meth = PyCFunction_GET_FUNCTION(func);
-    PyObject *self = PyCFunction_GET_SELF(func);
-    int flags = PyCFunction_GET_FLAGS(func);
-    assert(PyCFunction_Check(func));
-    assert(METH_FASTCALL == (flags & ~(METH_CLASS | METH_STATIC | METH_COEXIST | METH_KEYWORDS | METH_STACKLESS)));
-    assert(nargs >= 0);
-    assert(nargs == 0 || args != NULL);
-    /* _PyCFunction_FastCallDict() must not be called with an exception set,
-       because it may clear it (directly or indirectly) and so the
-       caller loses its exception */
-    assert(!PyErr_Occurred());
-    if ((PY_VERSION_HEX < 0x030700A0) || unlikely(flags & METH_KEYWORDS)) {
-        return (*((__Pyx_PyCFunctionFastWithKeywords)(void*)meth)) (self, args, nargs, NULL);
-    } else {
-        return (*((__Pyx_PyCFunctionFast)(void*)meth)) (self, args, nargs);
+static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObject *exc_type1, PyObject *exc_type2) {
+    assert(PyExceptionClass_Check(exc_type1));
+    assert(PyExceptionClass_Check(exc_type2));
+    if (likely(err == exc_type1 || err == exc_type2)) return 1;
+    if (likely(PyExceptionClass_Check(err))) {
+        return __Pyx_inner_PyErr_GivenExceptionMatches2(err, exc_type1, exc_type2);
     }
+    return (PyErr_GivenExceptionMatches(err, exc_type1) || PyErr_GivenExceptionMatches(err, exc_type2));
 }
 #endif
 
-/* PyFunctionFastCall */
-#if CYTHON_FAST_PYCALL
-static PyObject* __Pyx_PyFunction_FastCallNoKw(PyCodeObject *co, PyObject **args, Py_ssize_t na,
-                                               PyObject *globals) {
-    PyFrameObject *f;
-    PyThreadState *tstate = __Pyx_PyThreadState_Current;
-    PyObject **fastlocals;
-    Py_ssize_t i;
-    PyObject *result;
-    assert(globals != NULL);
-    /* XXX Perhaps we should create a specialized
-       PyFrame_New() that doesn't take locals, but does
-       take builtins without sanity checking them.
-       */
-    assert(tstate != NULL);
-    f = PyFrame_New(tstate, co, globals, NULL);
-    if (f == NULL) {
+/* PySequenceMultiply */
+static PyObject* __Pyx_PySequence_Multiply_Generic(PyObject *seq, Py_ssize_t mul) {
+    PyObject *result, *pymul = PyInt_FromSsize_t(mul);
+    if (unlikely(!pymul))
         return NULL;
-    }
-    fastlocals = __Pyx_PyFrame_GetLocalsplus(f);
-    for (i = 0; i < na; i++) {
-        Py_INCREF(*args);
-        fastlocals[i] = *args++;
-    }
-    result = PyEval_EvalFrameEx(f,0);
-    ++tstate->recursion_depth;
-    Py_DECREF(f);
-    --tstate->recursion_depth;
+    result = PyNumber_Multiply(seq, pymul);
+    Py_DECREF(pymul);
     return result;
 }
-#if 1 || PY_VERSION_HEX < 0x030600B1
-static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, Py_ssize_t nargs, PyObject *kwargs) {
-    PyCodeObject *co = (PyCodeObject *)PyFunction_GET_CODE(func);
-    PyObject *globals = PyFunction_GET_GLOBALS(func);
-    PyObject *argdefs = PyFunction_GET_DEFAULTS(func);
-    PyObject *closure;
-#if PY_MAJOR_VERSION >= 3
-    PyObject *kwdefs;
+static CYTHON_INLINE PyObject* __Pyx_PySequence_Multiply(PyObject *seq, Py_ssize_t mul) {
+#if CYTHON_USE_TYPE_SLOTS
+    PyTypeObject *type = Py_TYPE(seq);
+    if (likely(type->tp_as_sequence && type->tp_as_sequence->sq_repeat)) {
+        return type->tp_as_sequence->sq_repeat(seq, mul);
+    } else
 #endif
-    PyObject *kwtuple, **k;
-    PyObject **d;
-    Py_ssize_t nd;
-    Py_ssize_t nk;
-    PyObject *result;
-    assert(kwargs == NULL || PyDict_Check(kwargs));
-    nk = kwargs ? PyDict_Size(kwargs) : 0;
-    if (Py_EnterRecursiveCall((char*)" while calling a Python object")) {
-        return NULL;
+    {
+        return __Pyx_PySequence_Multiply_Generic(seq, mul);
     }
-    if (
-#if PY_MAJOR_VERSION >= 3
-            co->co_kwonlyargcount == 0 &&
-#endif
-            likely(kwargs == NULL || nk == 0) &&
-            co->co_flags == (CO_OPTIMIZED | CO_NEWLOCALS | CO_NOFREE)) {
-        if (argdefs == NULL && co->co_argcount == nargs) {
-            result = __Pyx_PyFunction_FastCallNoKw(co, args, nargs, globals);
-            goto done;
-        }
-        else if (nargs == 0 && argdefs != NULL
-                 && co->co_argcount == Py_SIZE(argdefs)) {
-            /* function called with no arguments, but all parameters have
-               a default value: use default values as arguments .*/
-            args = &PyTuple_GET_ITEM(argdefs, 0);
-            result =__Pyx_PyFunction_FastCallNoKw(co, args, Py_SIZE(argdefs), globals);
-            goto done;
+}
+
+/* SetItemInt */
+static int __Pyx_SetItemInt_Generic(PyObject *o, PyObject *j, PyObject *v) {
+    int r;
+    if (unlikely(!j)) return -1;
+    r = PyObject_SetItem(o, j, v);
+    Py_DECREF(j);
+    return r;
+}
+static CYTHON_INLINE int __Pyx_SetItemInt_Fast(PyObject *o, Py_ssize_t i, PyObject *v, int is_list,
+                                               CYTHON_NCP_UNUSED int wraparound, CYTHON_NCP_UNUSED int boundscheck) {
+#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS && CYTHON_USE_TYPE_SLOTS
+    if (is_list || PyList_CheckExact(o)) {
+        Py_ssize_t n = (!wraparound) ? i : ((likely(i >= 0)) ? i : i + PyList_GET_SIZE(o));
+        if ((!boundscheck) || likely(__Pyx_is_valid_index(n, PyList_GET_SIZE(o)))) {
+            PyObject* old = PyList_GET_ITEM(o, n);
+            Py_INCREF(v);
+            PyList_SET_ITEM(o, n, v);
+            Py_DECREF(old);
+            return 1;
         }
-    }
-    if (kwargs != NULL) {
-        Py_ssize_t pos, i;
-        kwtuple = PyTuple_New(2 * nk);
-        if (kwtuple == NULL) {
-            result = NULL;
-            goto done;
+    } else {
+        PyMappingMethods *mm = Py_TYPE(o)->tp_as_mapping;
+        PySequenceMethods *sm = Py_TYPE(o)->tp_as_sequence;
+        if (mm && mm->mp_ass_subscript) {
+            int r;
+            PyObject *key = PyInt_FromSsize_t(i);
+            if (unlikely(!key)) return -1;
+            r = mm->mp_ass_subscript(o, key, v);
+            Py_DECREF(key);
+            return r;
         }
-        k = &PyTuple_GET_ITEM(kwtuple, 0);
-        pos = i = 0;
-        while (PyDict_Next(kwargs, &pos, &k[i], &k[i+1])) {
-            Py_INCREF(k[i]);
-            Py_INCREF(k[i+1]);
-            i += 2;
+        if (likely(sm && sm->sq_ass_item)) {
+            if (wraparound && unlikely(i < 0) && likely(sm->sq_length)) {
+                Py_ssize_t l = sm->sq_length(o);
+                if (likely(l >= 0)) {
+                    i += l;
+                } else {
+                    if (!PyErr_ExceptionMatches(PyExc_OverflowError))
+                        return -1;
+                    PyErr_Clear();
+                }
+            }
+            return sm->sq_ass_item(o, i, v);
         }
-        nk = i / 2;
     }
-    else {
-        kwtuple = NULL;
-        k = NULL;
+#else
+    if (is_list || !PyMapping_Check(o))
+    {
+        return PySequence_SetItem(o, i, v);
     }
-    closure = PyFunction_GET_CLOSURE(func);
-#if PY_MAJOR_VERSION >= 3
-    kwdefs = PyFunction_GET_KW_DEFAULTS(func);
 #endif
-    if (argdefs != NULL) {
-        d = &PyTuple_GET_ITEM(argdefs, 0);
-        nd = Py_SIZE(argdefs);
+    return __Pyx_SetItemInt_Generic(o, PyInt_FromSsize_t(i), v);
+}
+
+/* RaiseUnboundLocalError */
+static CYTHON_INLINE void __Pyx_RaiseUnboundLocalError(const char *varname) {
+    PyErr_Format(PyExc_UnboundLocalError, "local variable '%s' referenced before assignment", varname);
+}
+
+/* DivInt[long] */
+static CYTHON_INLINE long __Pyx_div_long(long a, long b) {
+    long q = a / b;
+    long r = a - q*b;
+    q -= ((r != 0) & ((r ^ b) < 0));
+    return q;
+}
+
+/* ImportFrom */
+static PyObject* __Pyx_ImportFrom(PyObject* module, PyObject* name) {
+    PyObject* value = __Pyx_PyObject_GetAttrStr(module, name);
+    if (unlikely(!value) && PyErr_ExceptionMatches(PyExc_AttributeError)) {
+        const char* module_name_str = 0;
+        PyObject* module_name = 0;
+        PyObject* module_dot = 0;
+        PyObject* full_name = 0;
+        PyErr_Clear();
+        module_name_str = PyModule_GetName(module);
+        if (unlikely(!module_name_str)) { goto modbad; }
+        module_name = PyUnicode_FromString(module_name_str);
+        if (unlikely(!module_name)) { goto modbad; }
+        module_dot = PyUnicode_Concat(module_name, __pyx_kp_u__2);
+        if (unlikely(!module_dot)) { goto modbad; }
+        full_name = PyUnicode_Concat(module_dot, name);
+        if (unlikely(!full_name)) { goto modbad; }
+        #if PY_VERSION_HEX < 0x030700A1 || (CYTHON_COMPILING_IN_PYPY && PYPY_VERSION_NUM  < 0x07030400)
+        {
+            PyObject *modules = PyImport_GetModuleDict();
+            if (unlikely(!modules))
+                goto modbad;
+            value = PyObject_GetItem(modules, full_name);
+        }
+        #else
+        value = PyImport_GetModule(full_name);
+        #endif
+      modbad:
+        Py_XDECREF(full_name);
+        Py_XDECREF(module_dot);
+        Py_XDECREF(module_name);
     }
-    else {
-        d = NULL;
-        nd = 0;
+    if (unlikely(!value)) {
+        PyErr_Format(PyExc_ImportError,
+        #if PY_MAJOR_VERSION < 3
+            "cannot import name %.230s", PyString_AS_STRING(name));
+        #else
+            "cannot import name %S", name);
+        #endif
+    }
+    return value;
+}
+
+/* HasAttr */
+#if __PYX_LIMITED_VERSION_HEX < 0x030d00A1
+static CYTHON_INLINE int __Pyx_HasAttr(PyObject *o, PyObject *n) {
+    PyObject *r;
+    if (unlikely(!__Pyx_PyBaseString_Check(n))) {
+        PyErr_SetString(PyExc_TypeError,
+                        "hasattr(): attribute name must be string");
+        return -1;
+    }
+    r = __Pyx_GetAttr(o, n);
+    if (!r) {
+        PyErr_Clear();
+        return 0;
+    } else {
+        Py_DECREF(r);
+        return 1;
     }
+}
+#endif
+
+/* PyObject_GenericGetAttrNoDict */
+#if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000
+static PyObject *__Pyx_RaiseGenericGetAttributeError(PyTypeObject *tp, PyObject *attr_name) {
+    __Pyx_TypeName type_name = __Pyx_PyType_GetName(tp);
+    PyErr_Format(PyExc_AttributeError,
 #if PY_MAJOR_VERSION >= 3
-    result = PyEval_EvalCodeEx((PyObject*)co, globals, (PyObject *)NULL,
-                               args, (int)nargs,
-                               k, (int)nk,
-                               d, (int)nd, kwdefs, closure);
+                 "'" __Pyx_FMT_TYPENAME "' object has no attribute '%U'",
+                 type_name, attr_name);
 #else
-    result = PyEval_EvalCodeEx(co, globals, (PyObject *)NULL,
-                               args, (int)nargs,
-                               k, (int)nk,
-                               d, (int)nd, closure);
+                 "'" __Pyx_FMT_TYPENAME "' object has no attribute '%.400s'",
+                 type_name, PyString_AS_STRING(attr_name));
 #endif
-    Py_XDECREF(kwtuple);
-done:
-    Py_LeaveRecursiveCall();
-    return result;
+    __Pyx_DECREF_TypeName(type_name);
+    return NULL;
 }
-#endif
-#endif
-
-/* PyObjectCall2Args */
-static CYTHON_UNUSED PyObject* __Pyx_PyObject_Call2Args(PyObject* function, PyObject* arg1, PyObject* arg2) {
-    PyObject *args, *result = NULL;
-    #if CYTHON_FAST_PYCALL
-    if (PyFunction_Check(function)) {
-        PyObject *args[2] = {arg1, arg2};
-        return __Pyx_PyFunction_FastCall(function, args, 2);
+static CYTHON_INLINE PyObject* __Pyx_PyObject_GenericGetAttrNoDict(PyObject* obj, PyObject* attr_name) {
+    PyObject *descr;
+    PyTypeObject *tp = Py_TYPE(obj);
+    if (unlikely(!PyString_Check(attr_name))) {
+        return PyObject_GenericGetAttr(obj, attr_name);
     }
-    #endif
-    #if CYTHON_FAST_PYCCALL
-    if (__Pyx_PyFastCFunction_Check(function)) {
-        PyObject *args[2] = {arg1, arg2};
-        return __Pyx_PyCFunction_FastCall(function, args, 2);
+    assert(!tp->tp_dictoffset);
+    descr = _PyType_Lookup(tp, attr_name);
+    if (unlikely(!descr)) {
+        return __Pyx_RaiseGenericGetAttributeError(tp, attr_name);
     }
+    Py_INCREF(descr);
+    #if PY_MAJOR_VERSION < 3
+    if (likely(PyType_HasFeature(Py_TYPE(descr), Py_TPFLAGS_HAVE_CLASS)))
     #endif
-    args = PyTuple_New(2);
-    if (unlikely(!args)) goto done;
-    Py_INCREF(arg1);
-    PyTuple_SET_ITEM(args, 0, arg1);
-    Py_INCREF(arg2);
-    PyTuple_SET_ITEM(args, 1, arg2);
-    Py_INCREF(function);
-    result = __Pyx_PyObject_Call(function, args, NULL);
-    Py_DECREF(args);
-    Py_DECREF(function);
-done:
-    return result;
-}
-
-/* PyObjectCallMethO */
-#if CYTHON_COMPILING_IN_CPYTHON
-static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg) {
-    PyObject *self, *result;
-    PyCFunction cfunc;
-    cfunc = PyCFunction_GET_FUNCTION(func);
-    self = PyCFunction_GET_SELF(func);
-    if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object")))
-        return NULL;
-    result = cfunc(self, arg);
-    Py_LeaveRecursiveCall();
-    if (unlikely(!result) && unlikely(!PyErr_Occurred())) {
-        PyErr_SetString(
-            PyExc_SystemError,
-            "NULL result without error in PyObject_Call");
+    {
+        descrgetfunc f = Py_TYPE(descr)->tp_descr_get;
+        if (unlikely(f)) {
+            PyObject *res = f(descr, obj, (PyObject *)tp);
+            Py_DECREF(descr);
+            return res;
+        }
     }
-    return result;
+    return descr;
 }
 #endif
 
-/* PyObjectCallOneArg */
-#if CYTHON_COMPILING_IN_CPYTHON
-static PyObject* __Pyx__PyObject_CallOneArg(PyObject *func, PyObject *arg) {
-    PyObject *result;
-    PyObject *args = PyTuple_New(1);
-    if (unlikely(!args)) return NULL;
-    Py_INCREF(arg);
-    PyTuple_SET_ITEM(args, 0, arg);
-    result = __Pyx_PyObject_Call(func, args, NULL);
-    Py_DECREF(args);
-    return result;
-}
-static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
-#if CYTHON_FAST_PYCALL
-    if (PyFunction_Check(func)) {
-        return __Pyx_PyFunction_FastCall(func, &arg, 1);
+/* PyObject_GenericGetAttr */
+#if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000
+static PyObject* __Pyx_PyObject_GenericGetAttr(PyObject* obj, PyObject* attr_name) {
+    if (unlikely(Py_TYPE(obj)->tp_dictoffset)) {
+        return PyObject_GenericGetAttr(obj, attr_name);
     }
+    return __Pyx_PyObject_GenericGetAttrNoDict(obj, attr_name);
+}
 #endif
-    if (likely(PyCFunction_Check(func))) {
-        if (likely(PyCFunction_GET_FLAGS(func) & METH_O)) {
-            return __Pyx_PyObject_CallMethO(func, arg);
-#if CYTHON_FAST_PYCCALL
-        } else if (__Pyx_PyFastCFunction_Check(func)) {
-            return __Pyx_PyCFunction_FastCall(func, &arg, 1);
+
+/* FixUpExtensionType */
+#if CYTHON_USE_TYPE_SPECS
+static int __Pyx_fix_up_extension_type_from_spec(PyType_Spec *spec, PyTypeObject *type) {
+#if PY_VERSION_HEX > 0x030900B1 || CYTHON_COMPILING_IN_LIMITED_API
+    CYTHON_UNUSED_VAR(spec);
+    CYTHON_UNUSED_VAR(type);
+#else
+    const PyType_Slot *slot = spec->slots;
+    while (slot && slot->slot && slot->slot != Py_tp_members)
+        slot++;
+    if (slot && slot->slot == Py_tp_members) {
+        int changed = 0;
+#if !(PY_VERSION_HEX <= 0x030900b1 && CYTHON_COMPILING_IN_CPYTHON)
+        const
 #endif
-        }
-    }
-    return __Pyx__PyObject_CallOneArg(func, arg);
-}
+            PyMemberDef *memb = (PyMemberDef*) slot->pfunc;
+        while (memb && memb->name) {
+            if (memb->name[0] == '_' && memb->name[1] == '_') {
+#if PY_VERSION_HEX < 0x030900b1
+                if (strcmp(memb->name, "__weaklistoffset__") == 0) {
+                    assert(memb->type == T_PYSSIZET);
+                    assert(memb->flags == READONLY);
+                    type->tp_weaklistoffset = memb->offset;
+                    changed = 1;
+                }
+                else if (strcmp(memb->name, "__dictoffset__") == 0) {
+                    assert(memb->type == T_PYSSIZET);
+                    assert(memb->flags == READONLY);
+                    type->tp_dictoffset = memb->offset;
+                    changed = 1;
+                }
+#if CYTHON_METH_FASTCALL
+                else if (strcmp(memb->name, "__vectorcalloffset__") == 0) {
+                    assert(memb->type == T_PYSSIZET);
+                    assert(memb->flags == READONLY);
+#if PY_VERSION_HEX >= 0x030800b4
+                    type->tp_vectorcall_offset = memb->offset;
 #else
-static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
-    PyObject *result;
-    PyObject *args = PyTuple_Pack(1, arg);
-    if (unlikely(!args)) return NULL;
-    result = __Pyx_PyObject_Call(func, args, NULL);
-    Py_DECREF(args);
-    return result;
-}
+                    type->tp_print = (printfunc) memb->offset;
+#endif
+                    changed = 1;
+                }
 #endif
-
-/* BytesEquals */
-static CYTHON_INLINE int __Pyx_PyBytes_Equals(PyObject* s1, PyObject* s2, int equals) {
-#if CYTHON_COMPILING_IN_PYPY
-    return PyObject_RichCompareBool(s1, s2, equals);
 #else
-    if (s1 == s2) {
-        return (equals == Py_EQ);
-    } else if (PyBytes_CheckExact(s1) & PyBytes_CheckExact(s2)) {
-        const char *ps1, *ps2;
-        Py_ssize_t length = PyBytes_GET_SIZE(s1);
-        if (length != PyBytes_GET_SIZE(s2))
-            return (equals == Py_NE);
-        ps1 = PyBytes_AS_STRING(s1);
-        ps2 = PyBytes_AS_STRING(s2);
-        if (ps1[0] != ps2[0]) {
-            return (equals == Py_NE);
-        } else if (length == 1) {
-            return (equals == Py_EQ);
-        } else {
-            int result;
-#if CYTHON_USE_UNICODE_INTERNALS
-            Py_hash_t hash1, hash2;
-            hash1 = ((PyBytesObject*)s1)->ob_shash;
-            hash2 = ((PyBytesObject*)s2)->ob_shash;
-            if (hash1 != hash2 && hash1 != -1 && hash2 != -1) {
-                return (equals == Py_NE);
-            }
+                if ((0));
 #endif
-            result = memcmp(ps1, ps2, (size_t)length);
-            return (equals == Py_EQ) ? (result == 0) : (result != 0);
+#if PY_VERSION_HEX <= 0x030900b1 && CYTHON_COMPILING_IN_CPYTHON
+                else if (strcmp(memb->name, "__module__") == 0) {
+                    PyObject *descr;
+                    assert(memb->type == T_OBJECT);
+                    assert(memb->flags == 0 || memb->flags == READONLY);
+                    descr = PyDescr_NewMember(type, memb);
+                    if (unlikely(!descr))
+                        return -1;
+                    if (unlikely(PyDict_SetItem(type->tp_dict, PyDescr_NAME(descr), descr) < 0)) {
+                        Py_DECREF(descr);
+                        return -1;
+                    }
+                    Py_DECREF(descr);
+                    changed = 1;
+                }
+#endif
+            }
+            memb++;
         }
-    } else if ((s1 == Py_None) & PyBytes_CheckExact(s2)) {
-        return (equals == Py_NE);
-    } else if ((s2 == Py_None) & PyBytes_CheckExact(s1)) {
-        return (equals == Py_NE);
-    } else {
-        int result;
-        PyObject* py_result = PyObject_RichCompare(s1, s2, equals);
-        if (!py_result)
-            return -1;
-        result = __Pyx_PyObject_IsTrue(py_result);
-        Py_DECREF(py_result);
-        return result;
+        if (changed)
+            PyType_Modified(type);
     }
 #endif
+    return 0;
 }
-
-/* UnicodeEquals */
-static CYTHON_INLINE int __Pyx_PyUnicode_Equals(PyObject* s1, PyObject* s2, int equals) {
-#if CYTHON_COMPILING_IN_PYPY
-    return PyObject_RichCompareBool(s1, s2, equals);
-#else
-#if PY_MAJOR_VERSION < 3
-    PyObject* owned_ref = NULL;
 #endif
-    int s1_is_unicode, s2_is_unicode;
-    if (s1 == s2) {
-        goto return_eq;
-    }
-    s1_is_unicode = PyUnicode_CheckExact(s1);
-    s2_is_unicode = PyUnicode_CheckExact(s2);
-#if PY_MAJOR_VERSION < 3
-    if ((s1_is_unicode & (!s2_is_unicode)) && PyString_CheckExact(s2)) {
-        owned_ref = PyUnicode_FromObject(s2);
-        if (unlikely(!owned_ref))
-            return -1;
-        s2 = owned_ref;
-        s2_is_unicode = 1;
-    } else if ((s2_is_unicode & (!s1_is_unicode)) && PyString_CheckExact(s1)) {
-        owned_ref = PyUnicode_FromObject(s1);
-        if (unlikely(!owned_ref))
-            return -1;
-        s1 = owned_ref;
-        s1_is_unicode = 1;
-    } else if (((!s2_is_unicode) & (!s1_is_unicode))) {
-        return __Pyx_PyBytes_Equals(s1, s2, equals);
+
+/* PyObjectCallNoArg */
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallNoArg(PyObject *func) {
+    PyObject *arg[2] = {NULL, NULL};
+    return __Pyx_PyObject_FastCall(func, arg + 1, 0 | __Pyx_PY_VECTORCALL_ARGUMENTS_OFFSET);
+}
+
+/* PyObjectGetMethod */
+static int __Pyx_PyObject_GetMethod(PyObject *obj, PyObject *name, PyObject **method) {
+    PyObject *attr;
+#if CYTHON_UNPACK_METHODS && CYTHON_COMPILING_IN_CPYTHON && CYTHON_USE_PYTYPE_LOOKUP
+    __Pyx_TypeName type_name;
+    PyTypeObject *tp = Py_TYPE(obj);
+    PyObject *descr;
+    descrgetfunc f = NULL;
+    PyObject **dictptr, *dict;
+    int meth_found = 0;
+    assert (*method == NULL);
+    if (unlikely(tp->tp_getattro != PyObject_GenericGetAttr)) {
+        attr = __Pyx_PyObject_GetAttrStr(obj, name);
+        goto try_unpack;
+    }
+    if (unlikely(tp->tp_dict == NULL) && unlikely(PyType_Ready(tp) < 0)) {
+        return 0;
     }
-#endif
-    if (s1_is_unicode & s2_is_unicode) {
-        Py_ssize_t length;
-        int kind;
-        void *data1, *data2;
-        if (unlikely(__Pyx_PyUnicode_READY(s1) < 0) || unlikely(__Pyx_PyUnicode_READY(s2) < 0))
-            return -1;
-        length = __Pyx_PyUnicode_GET_LENGTH(s1);
-        if (length != __Pyx_PyUnicode_GET_LENGTH(s2)) {
-            goto return_ne;
-        }
-#if CYTHON_USE_UNICODE_INTERNALS
-        {
-            Py_hash_t hash1, hash2;
-        #if CYTHON_PEP393_ENABLED
-            hash1 = ((PyASCIIObject*)s1)->hash;
-            hash2 = ((PyASCIIObject*)s2)->hash;
+    descr = _PyType_Lookup(tp, name);
+    if (likely(descr != NULL)) {
+        Py_INCREF(descr);
+#if defined(Py_TPFLAGS_METHOD_DESCRIPTOR) && Py_TPFLAGS_METHOD_DESCRIPTOR
+        if (__Pyx_PyType_HasFeature(Py_TYPE(descr), Py_TPFLAGS_METHOD_DESCRIPTOR))
+#elif PY_MAJOR_VERSION >= 3
+        #ifdef __Pyx_CyFunction_USED
+        if (likely(PyFunction_Check(descr) || __Pyx_IS_TYPE(descr, &PyMethodDescr_Type) || __Pyx_CyFunction_Check(descr)))
         #else
-            hash1 = ((PyUnicodeObject*)s1)->hash;
-            hash2 = ((PyUnicodeObject*)s2)->hash;
+        if (likely(PyFunction_Check(descr) || __Pyx_IS_TYPE(descr, &PyMethodDescr_Type)))
+        #endif
+#else
+        #ifdef __Pyx_CyFunction_USED
+        if (likely(PyFunction_Check(descr) || __Pyx_CyFunction_Check(descr)))
+        #else
+        if (likely(PyFunction_Check(descr)))
         #endif
-            if (hash1 != hash2 && hash1 != -1 && hash2 != -1) {
-                goto return_ne;
-            }
-        }
 #endif
-        kind = __Pyx_PyUnicode_KIND(s1);
-        if (kind != __Pyx_PyUnicode_KIND(s2)) {
-            goto return_ne;
-        }
-        data1 = __Pyx_PyUnicode_DATA(s1);
-        data2 = __Pyx_PyUnicode_DATA(s2);
-        if (__Pyx_PyUnicode_READ(kind, data1, 0) != __Pyx_PyUnicode_READ(kind, data2, 0)) {
-            goto return_ne;
-        } else if (length == 1) {
-            goto return_eq;
+        {
+            meth_found = 1;
         } else {
-            int result = memcmp(data1, data2, (size_t)(length * kind));
-            #if PY_MAJOR_VERSION < 3
-            Py_XDECREF(owned_ref);
-            #endif
-            return (equals == Py_EQ) ? (result == 0) : (result != 0);
+            f = Py_TYPE(descr)->tp_descr_get;
+            if (f != NULL && PyDescr_IsData(descr)) {
+                attr = f(descr, obj, (PyObject *)Py_TYPE(obj));
+                Py_DECREF(descr);
+                goto try_unpack;
+            }
         }
-    } else if ((s1 == Py_None) & s2_is_unicode) {
-        goto return_ne;
-    } else if ((s2 == Py_None) & s1_is_unicode) {
-        goto return_ne;
-    } else {
-        int result;
-        PyObject* py_result = PyObject_RichCompare(s1, s2, equals);
-        #if PY_MAJOR_VERSION < 3
-        Py_XDECREF(owned_ref);
-        #endif
-        if (!py_result)
-            return -1;
-        result = __Pyx_PyObject_IsTrue(py_result);
-        Py_DECREF(py_result);
-        return result;
     }
-return_eq:
-    #if PY_MAJOR_VERSION < 3
-    Py_XDECREF(owned_ref);
-    #endif
-    return (equals == Py_EQ);
-return_ne:
-    #if PY_MAJOR_VERSION < 3
-    Py_XDECREF(owned_ref);
-    #endif
-    return (equals == Py_NE);
+    dictptr = _PyObject_GetDictPtr(obj);
+    if (dictptr != NULL && (dict = *dictptr) != NULL) {
+        Py_INCREF(dict);
+        attr = __Pyx_PyDict_GetItemStr(dict, name);
+        if (attr != NULL) {
+            Py_INCREF(attr);
+            Py_DECREF(dict);
+            Py_XDECREF(descr);
+            goto try_unpack;
+        }
+        Py_DECREF(dict);
+    }
+    if (meth_found) {
+        *method = descr;
+        return 1;
+    }
+    if (f != NULL) {
+        attr = f(descr, obj, (PyObject *)Py_TYPE(obj));
+        Py_DECREF(descr);
+        goto try_unpack;
+    }
+    if (likely(descr != NULL)) {
+        *method = descr;
+        return 0;
+    }
+    type_name = __Pyx_PyType_GetName(tp);
+    PyErr_Format(PyExc_AttributeError,
+#if PY_MAJOR_VERSION >= 3
+                 "'" __Pyx_FMT_TYPENAME "' object has no attribute '%U'",
+                 type_name, name);
+#else
+                 "'" __Pyx_FMT_TYPENAME "' object has no attribute '%.400s'",
+                 type_name, PyString_AS_STRING(name));
+#endif
+    __Pyx_DECREF_TypeName(type_name);
+    return 0;
+#else
+    attr = __Pyx_PyObject_GetAttrStr(obj, name);
+    goto try_unpack;
+#endif
+try_unpack:
+#if CYTHON_UNPACK_METHODS
+    if (likely(attr) && PyMethod_Check(attr) && likely(PyMethod_GET_SELF(attr) == obj)) {
+        PyObject *function = PyMethod_GET_FUNCTION(attr);
+        Py_INCREF(function);
+        Py_DECREF(attr);
+        *method = function;
+        return 1;
+    }
 #endif
+    *method = attr;
+    return 0;
 }
 
-/* DivInt[Py_ssize_t] */
-static CYTHON_INLINE Py_ssize_t __Pyx_div_Py_ssize_t(Py_ssize_t a, Py_ssize_t b) {
-    Py_ssize_t q = a / b;
-    Py_ssize_t r = a - q*b;
-    q -= ((r != 0) & ((r ^ b) < 0));
-    return q;
+/* PyObjectCallMethod0 */
+static PyObject* __Pyx_PyObject_CallMethod0(PyObject* obj, PyObject* method_name) {
+    PyObject *method = NULL, *result = NULL;
+    int is_method = __Pyx_PyObject_GetMethod(obj, method_name, &method);
+    if (likely(is_method)) {
+        result = __Pyx_PyObject_CallOneArg(method, obj);
+        Py_DECREF(method);
+        return result;
+    }
+    if (unlikely(!method)) goto bad;
+    result = __Pyx_PyObject_CallNoArg(method);
+    Py_DECREF(method);
+bad:
+    return result;
 }
 
-/* GetAttr */
-static CYTHON_INLINE PyObject *__Pyx_GetAttr(PyObject *o, PyObject *n) {
-#if CYTHON_USE_TYPE_SLOTS
-#if PY_MAJOR_VERSION >= 3
-    if (likely(PyUnicode_Check(n)))
+/* ValidateBasesTuple */
+#if CYTHON_COMPILING_IN_CPYTHON || CYTHON_COMPILING_IN_LIMITED_API || CYTHON_USE_TYPE_SPECS
+static int __Pyx_validate_bases_tuple(const char *type_name, Py_ssize_t dictoffset, PyObject *bases) {
+    Py_ssize_t i, n;
+#if CYTHON_ASSUME_SAFE_MACROS
+    n = PyTuple_GET_SIZE(bases);
 #else
-    if (likely(PyString_Check(n)))
+    n = PyTuple_Size(bases);
+    if (n < 0) return -1;
 #endif
-        return __Pyx_PyObject_GetAttrStr(o, n);
+    for (i = 1; i < n; i++)
+    {
+#if CYTHON_AVOID_BORROWED_REFS
+        PyObject *b0 = PySequence_GetItem(bases, i);
+        if (!b0) return -1;
+#elif CYTHON_ASSUME_SAFE_MACROS
+        PyObject *b0 = PyTuple_GET_ITEM(bases, i);
+#else
+        PyObject *b0 = PyTuple_GetItem(bases, i);
+        if (!b0) return -1;
 #endif
-    return PyObject_GetAttr(o, n);
+        PyTypeObject *b;
+#if PY_MAJOR_VERSION < 3
+        if (PyClass_Check(b0))
+        {
+            PyErr_Format(PyExc_TypeError, "base class '%.200s' is an old-style class",
+                         PyString_AS_STRING(((PyClassObject*)b0)->cl_name));
+#if CYTHON_AVOID_BORROWED_REFS
+            Py_DECREF(b0);
+#endif
+            return -1;
+        }
+#endif
+        b = (PyTypeObject*) b0;
+        if (!__Pyx_PyType_HasFeature(b, Py_TPFLAGS_HEAPTYPE))
+        {
+            __Pyx_TypeName b_name = __Pyx_PyType_GetName(b);
+            PyErr_Format(PyExc_TypeError,
+                "base class '" __Pyx_FMT_TYPENAME "' is not a heap type", b_name);
+            __Pyx_DECREF_TypeName(b_name);
+#if CYTHON_AVOID_BORROWED_REFS
+            Py_DECREF(b0);
+#endif
+            return -1;
+        }
+        if (dictoffset == 0)
+        {
+            Py_ssize_t b_dictoffset = 0;
+#if CYTHON_USE_TYPE_SLOTS || CYTHON_COMPILING_IN_PYPY
+            b_dictoffset = b->tp_dictoffset;
+#else
+            PyObject *py_b_dictoffset = PyObject_GetAttrString((PyObject*)b, "__dictoffset__");
+            if (!py_b_dictoffset) goto dictoffset_return;
+            b_dictoffset = PyLong_AsSsize_t(py_b_dictoffset);
+            Py_DECREF(py_b_dictoffset);
+            if (b_dictoffset == -1 && PyErr_Occurred()) goto dictoffset_return;
+#endif
+            if (b_dictoffset) {
+                {
+                    __Pyx_TypeName b_name = __Pyx_PyType_GetName(b);
+                    PyErr_Format(PyExc_TypeError,
+                        "extension type '%.200s' has no __dict__ slot, "
+                        "but base type '" __Pyx_FMT_TYPENAME "' has: "
+                        "either add 'cdef dict __dict__' to the extension type "
+                        "or add '__slots__ = [...]' to the base type",
+                        type_name, b_name);
+                    __Pyx_DECREF_TypeName(b_name);
+                }
+#if !(CYTHON_USE_TYPE_SLOTS || CYTHON_COMPILING_IN_PYPY)
+              dictoffset_return:
+#endif
+#if CYTHON_AVOID_BORROWED_REFS
+                Py_DECREF(b0);
+#endif
+                return -1;
+            }
+        }
+#if CYTHON_AVOID_BORROWED_REFS
+        Py_DECREF(b0);
+#endif
+    }
+    return 0;
 }
+#endif
 
-/* GetItemInt */
-static PyObject *__Pyx_GetItemInt_Generic(PyObject *o, PyObject* j) {
-    PyObject *r;
-    if (!j) return NULL;
-    r = PyObject_GetItem(o, j);
-    Py_DECREF(j);
+/* PyType_Ready */
+static int __Pyx_PyType_Ready(PyTypeObject *t) {
+#if CYTHON_USE_TYPE_SPECS || !(CYTHON_COMPILING_IN_CPYTHON || CYTHON_COMPILING_IN_LIMITED_API) || defined(PYSTON_MAJOR_VERSION)
+    (void)__Pyx_PyObject_CallMethod0;
+#if CYTHON_USE_TYPE_SPECS
+    (void)__Pyx_validate_bases_tuple;
+#endif
+    return PyType_Ready(t);
+#else
+    int r;
+    PyObject *bases = __Pyx_PyType_GetSlot(t, tp_bases, PyObject*);
+    if (bases && unlikely(__Pyx_validate_bases_tuple(t->tp_name, t->tp_dictoffset, bases) == -1))
+        return -1;
+#if PY_VERSION_HEX >= 0x03050000 && !defined(PYSTON_MAJOR_VERSION)
+    {
+        int gc_was_enabled;
+    #if PY_VERSION_HEX >= 0x030A00b1
+        gc_was_enabled = PyGC_Disable();
+        (void)__Pyx_PyObject_CallMethod0;
+    #else
+        PyObject *ret, *py_status;
+        PyObject *gc = NULL;
+        #if PY_VERSION_HEX >= 0x030700a1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM+0 >= 0x07030400)
+        gc = PyImport_GetModule(__pyx_kp_u_gc);
+        #endif
+        if (unlikely(!gc)) gc = PyImport_Import(__pyx_kp_u_gc);
+        if (unlikely(!gc)) return -1;
+        py_status = __Pyx_PyObject_CallMethod0(gc, __pyx_kp_u_isenabled);
+        if (unlikely(!py_status)) {
+            Py_DECREF(gc);
+            return -1;
+        }
+        gc_was_enabled = __Pyx_PyObject_IsTrue(py_status);
+        Py_DECREF(py_status);
+        if (gc_was_enabled > 0) {
+            ret = __Pyx_PyObject_CallMethod0(gc, __pyx_kp_u_disable);
+            if (unlikely(!ret)) {
+                Py_DECREF(gc);
+                return -1;
+            }
+            Py_DECREF(ret);
+        } else if (unlikely(gc_was_enabled == -1)) {
+            Py_DECREF(gc);
+            return -1;
+        }
+    #endif
+        t->tp_flags |= Py_TPFLAGS_HEAPTYPE;
+#if PY_VERSION_HEX >= 0x030A0000
+        t->tp_flags |= Py_TPFLAGS_IMMUTABLETYPE;
+#endif
+#else
+        (void)__Pyx_PyObject_CallMethod0;
+#endif
+    r = PyType_Ready(t);
+#if PY_VERSION_HEX >= 0x03050000 && !defined(PYSTON_MAJOR_VERSION)
+        t->tp_flags &= ~Py_TPFLAGS_HEAPTYPE;
+    #if PY_VERSION_HEX >= 0x030A00b1
+        if (gc_was_enabled)
+            PyGC_Enable();
+    #else
+        if (gc_was_enabled) {
+            PyObject *tp, *v, *tb;
+            PyErr_Fetch(&tp, &v, &tb);
+            ret = __Pyx_PyObject_CallMethod0(gc, __pyx_kp_u_enable);
+            if (likely(ret || r == -1)) {
+                Py_XDECREF(ret);
+                PyErr_Restore(tp, v, tb);
+            } else {
+                Py_XDECREF(tp);
+                Py_XDECREF(v);
+                Py_XDECREF(tb);
+                r = -1;
+            }
+        }
+        Py_DECREF(gc);
+    #endif
+    }
+#endif
     return r;
+#endif
 }
-static CYTHON_INLINE PyObject *__Pyx_GetItemInt_List_Fast(PyObject *o, Py_ssize_t i,
-                                                              CYTHON_NCP_UNUSED int wraparound,
-                                                              CYTHON_NCP_UNUSED int boundscheck) {
-#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-    Py_ssize_t wrapped_i = i;
-    if (wraparound & unlikely(i < 0)) {
-        wrapped_i += PyList_GET_SIZE(o);
-    }
-    if ((!boundscheck) || likely(__Pyx_is_valid_index(wrapped_i, PyList_GET_SIZE(o)))) {
-        PyObject *r = PyList_GET_ITEM(o, wrapped_i);
-        Py_INCREF(r);
-        return r;
-    }
-    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+
+/* SetVTable */
+static int __Pyx_SetVtable(PyTypeObject *type, void *vtable) {
+    PyObject *ob = PyCapsule_New(vtable, 0, 0);
+    if (unlikely(!ob))
+        goto bad;
+#if CYTHON_COMPILING_IN_LIMITED_API
+    if (unlikely(PyObject_SetAttr((PyObject *) type, __pyx_n_s_pyx_vtable, ob) < 0))
 #else
-    return PySequence_GetItem(o, i);
+    if (unlikely(PyDict_SetItem(type->tp_dict, __pyx_n_s_pyx_vtable, ob) < 0))
 #endif
+        goto bad;
+    Py_DECREF(ob);
+    return 0;
+bad:
+    Py_XDECREF(ob);
+    return -1;
 }
-static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Tuple_Fast(PyObject *o, Py_ssize_t i,
-                                                              CYTHON_NCP_UNUSED int wraparound,
-                                                              CYTHON_NCP_UNUSED int boundscheck) {
-#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-    Py_ssize_t wrapped_i = i;
-    if (wraparound & unlikely(i < 0)) {
-        wrapped_i += PyTuple_GET_SIZE(o);
-    }
-    if ((!boundscheck) || likely(__Pyx_is_valid_index(wrapped_i, PyTuple_GET_SIZE(o)))) {
-        PyObject *r = PyTuple_GET_ITEM(o, wrapped_i);
-        Py_INCREF(r);
-        return r;
-    }
-    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+
+/* GetVTable */
+static void* __Pyx_GetVtable(PyTypeObject *type) {
+    void* ptr;
+#if CYTHON_COMPILING_IN_LIMITED_API
+    PyObject *ob = PyObject_GetAttr((PyObject *)type, __pyx_n_s_pyx_vtable);
 #else
-    return PySequence_GetItem(o, i);
+    PyObject *ob = PyObject_GetItem(type->tp_dict, __pyx_n_s_pyx_vtable);
 #endif
+    if (!ob)
+        goto bad;
+    ptr = PyCapsule_GetPointer(ob, 0);
+    if (!ptr && !PyErr_Occurred())
+        PyErr_SetString(PyExc_RuntimeError, "invalid vtable found for imported type");
+    Py_DECREF(ob);
+    return ptr;
+bad:
+    Py_XDECREF(ob);
+    return NULL;
 }
-static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i, int is_list,
-                                                     CYTHON_NCP_UNUSED int wraparound,
-                                                     CYTHON_NCP_UNUSED int boundscheck) {
-#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS && CYTHON_USE_TYPE_SLOTS
-    if (is_list || PyList_CheckExact(o)) {
-        Py_ssize_t n = ((!wraparound) | likely(i >= 0)) ? i : i + PyList_GET_SIZE(o);
-        if ((!boundscheck) || (likely(__Pyx_is_valid_index(n, PyList_GET_SIZE(o))))) {
-            PyObject *r = PyList_GET_ITEM(o, n);
-            Py_INCREF(r);
-            return r;
+
+/* MergeVTables */
+#if !CYTHON_COMPILING_IN_LIMITED_API
+static int __Pyx_MergeVtables(PyTypeObject *type) {
+    int i;
+    void** base_vtables;
+    __Pyx_TypeName tp_base_name;
+    __Pyx_TypeName base_name;
+    void* unknown = (void*)-1;
+    PyObject* bases = type->tp_bases;
+    int base_depth = 0;
+    {
+        PyTypeObject* base = type->tp_base;
+        while (base) {
+            base_depth += 1;
+            base = base->tp_base;
         }
     }
-    else if (PyTuple_CheckExact(o)) {
-        Py_ssize_t n = ((!wraparound) | likely(i >= 0)) ? i : i + PyTuple_GET_SIZE(o);
-        if ((!boundscheck) || likely(__Pyx_is_valid_index(n, PyTuple_GET_SIZE(o)))) {
-            PyObject *r = PyTuple_GET_ITEM(o, n);
-            Py_INCREF(r);
-            return r;
-        }
-    } else {
-        PySequenceMethods *m = Py_TYPE(o)->tp_as_sequence;
-        if (likely(m && m->sq_item)) {
-            if (wraparound && unlikely(i < 0) && likely(m->sq_length)) {
-                Py_ssize_t l = m->sq_length(o);
-                if (likely(l >= 0)) {
-                    i += l;
-                } else {
-                    if (!PyErr_ExceptionMatches(PyExc_OverflowError))
-                        return NULL;
-                    PyErr_Clear();
+    base_vtables = (void**) malloc(sizeof(void*) * (size_t)(base_depth + 1));
+    base_vtables[0] = unknown;
+    for (i = 1; i < PyTuple_GET_SIZE(bases); i++) {
+        void* base_vtable = __Pyx_GetVtable(((PyTypeObject*)PyTuple_GET_ITEM(bases, i)));
+        if (base_vtable != NULL) {
+            int j;
+            PyTypeObject* base = type->tp_base;
+            for (j = 0; j < base_depth; j++) {
+                if (base_vtables[j] == unknown) {
+                    base_vtables[j] = __Pyx_GetVtable(base);
+                    base_vtables[j + 1] = unknown;
                 }
+                if (base_vtables[j] == base_vtable) {
+                    break;
+                } else if (base_vtables[j] == NULL) {
+                    goto bad;
+                }
+                base = base->tp_base;
             }
-            return m->sq_item(o, i);
         }
     }
-#else
-    if (is_list || PySequence_Check(o)) {
-        return PySequence_GetItem(o, i);
-    }
-#endif
-    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+    PyErr_Clear();
+    free(base_vtables);
+    return 0;
+bad:
+    tp_base_name = __Pyx_PyType_GetName(type->tp_base);
+    base_name = __Pyx_PyType_GetName((PyTypeObject*)PyTuple_GET_ITEM(bases, i));
+    PyErr_Format(PyExc_TypeError,
+        "multiple bases have vtable conflict: '" __Pyx_FMT_TYPENAME "' and '" __Pyx_FMT_TYPENAME "'", tp_base_name, base_name);
+    __Pyx_DECREF_TypeName(tp_base_name);
+    __Pyx_DECREF_TypeName(base_name);
+    free(base_vtables);
+    return -1;
 }
+#endif
 
-/* ObjectGetItem */
-#if CYTHON_USE_TYPE_SLOTS
-static PyObject *__Pyx_PyObject_GetIndex(PyObject *obj, PyObject* index) {
-    PyObject *runerr;
-    Py_ssize_t key_value;
-    PySequenceMethods *m = Py_TYPE(obj)->tp_as_sequence;
-    if (unlikely(!(m && m->sq_item))) {
-        PyErr_Format(PyExc_TypeError, "'%.200s' object is not subscriptable", Py_TYPE(obj)->tp_name);
-        return NULL;
+/* SetupReduce */
+#if !CYTHON_COMPILING_IN_LIMITED_API
+static int __Pyx_setup_reduce_is_named(PyObject* meth, PyObject* name) {
+  int ret;
+  PyObject *name_attr;
+  name_attr = __Pyx_PyObject_GetAttrStrNoError(meth, __pyx_n_s_name_2);
+  if (likely(name_attr)) {
+      ret = PyObject_RichCompareBool(name_attr, name, Py_EQ);
+  } else {
+      ret = -1;
+  }
+  if (unlikely(ret < 0)) {
+      PyErr_Clear();
+      ret = 0;
+  }
+  Py_XDECREF(name_attr);
+  return ret;
+}
+static int __Pyx_setup_reduce(PyObject* type_obj) {
+    int ret = 0;
+    PyObject *object_reduce = NULL;
+    PyObject *object_getstate = NULL;
+    PyObject *object_reduce_ex = NULL;
+    PyObject *reduce = NULL;
+    PyObject *reduce_ex = NULL;
+    PyObject *reduce_cython = NULL;
+    PyObject *setstate = NULL;
+    PyObject *setstate_cython = NULL;
+    PyObject *getstate = NULL;
+#if CYTHON_USE_PYTYPE_LOOKUP
+    getstate = _PyType_Lookup((PyTypeObject*)type_obj, __pyx_n_s_getstate);
+#else
+    getstate = __Pyx_PyObject_GetAttrStrNoError(type_obj, __pyx_n_s_getstate);
+    if (!getstate && PyErr_Occurred()) {
+        goto __PYX_BAD;
     }
-    key_value = __Pyx_PyIndex_AsSsize_t(index);
-    if (likely(key_value != -1 || !(runerr = PyErr_Occurred()))) {
-        return __Pyx_GetItemInt_Fast(obj, key_value, 0, 1, 1);
+#endif
+    if (getstate) {
+#if CYTHON_USE_PYTYPE_LOOKUP
+        object_getstate = _PyType_Lookup(&PyBaseObject_Type, __pyx_n_s_getstate);
+#else
+        object_getstate = __Pyx_PyObject_GetAttrStrNoError((PyObject*)&PyBaseObject_Type, __pyx_n_s_getstate);
+        if (!object_getstate && PyErr_Occurred()) {
+            goto __PYX_BAD;
+        }
+#endif
+        if (object_getstate != getstate) {
+            goto __PYX_GOOD;
+        }
     }
-    if (PyErr_GivenExceptionMatches(runerr, PyExc_OverflowError)) {
-        PyErr_Clear();
-        PyErr_Format(PyExc_IndexError, "cannot fit '%.200s' into an index-sized integer", Py_TYPE(index)->tp_name);
+#if CYTHON_USE_PYTYPE_LOOKUP
+    object_reduce_ex = _PyType_Lookup(&PyBaseObject_Type, __pyx_n_s_reduce_ex); if (!object_reduce_ex) goto __PYX_BAD;
+#else
+    object_reduce_ex = __Pyx_PyObject_GetAttrStr((PyObject*)&PyBaseObject_Type, __pyx_n_s_reduce_ex); if (!object_reduce_ex) goto __PYX_BAD;
+#endif
+    reduce_ex = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce_ex); if (unlikely(!reduce_ex)) goto __PYX_BAD;
+    if (reduce_ex == object_reduce_ex) {
+#if CYTHON_USE_PYTYPE_LOOKUP
+        object_reduce = _PyType_Lookup(&PyBaseObject_Type, __pyx_n_s_reduce); if (!object_reduce) goto __PYX_BAD;
+#else
+        object_reduce = __Pyx_PyObject_GetAttrStr((PyObject*)&PyBaseObject_Type, __pyx_n_s_reduce); if (!object_reduce) goto __PYX_BAD;
+#endif
+        reduce = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce); if (unlikely(!reduce)) goto __PYX_BAD;
+        if (reduce == object_reduce || __Pyx_setup_reduce_is_named(reduce, __pyx_n_s_reduce_cython)) {
+            reduce_cython = __Pyx_PyObject_GetAttrStrNoError(type_obj, __pyx_n_s_reduce_cython);
+            if (likely(reduce_cython)) {
+                ret = PyDict_SetItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_reduce, reduce_cython); if (unlikely(ret < 0)) goto __PYX_BAD;
+                ret = PyDict_DelItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_reduce_cython); if (unlikely(ret < 0)) goto __PYX_BAD;
+            } else if (reduce == object_reduce || PyErr_Occurred()) {
+                goto __PYX_BAD;
+            }
+            setstate = __Pyx_PyObject_GetAttrStrNoError(type_obj, __pyx_n_s_setstate);
+            if (!setstate) PyErr_Clear();
+            if (!setstate || __Pyx_setup_reduce_is_named(setstate, __pyx_n_s_setstate_cython)) {
+                setstate_cython = __Pyx_PyObject_GetAttrStrNoError(type_obj, __pyx_n_s_setstate_cython);
+                if (likely(setstate_cython)) {
+                    ret = PyDict_SetItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_setstate, setstate_cython); if (unlikely(ret < 0)) goto __PYX_BAD;
+                    ret = PyDict_DelItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_setstate_cython); if (unlikely(ret < 0)) goto __PYX_BAD;
+                } else if (!setstate || PyErr_Occurred()) {
+                    goto __PYX_BAD;
+                }
+            }
+            PyType_Modified((PyTypeObject*)type_obj);
+        }
     }
-    return NULL;
-}
-static PyObject *__Pyx_PyObject_GetItem(PyObject *obj, PyObject* key) {
-    PyMappingMethods *m = Py_TYPE(obj)->tp_as_mapping;
-    if (likely(m && m->mp_subscript)) {
-        return m->mp_subscript(obj, key);
+    goto __PYX_GOOD;
+__PYX_BAD:
+    if (!PyErr_Occurred()) {
+        __Pyx_TypeName type_obj_name =
+            __Pyx_PyType_GetName((PyTypeObject*)type_obj);
+        PyErr_Format(PyExc_RuntimeError,
+            "Unable to initialize pickling for " __Pyx_FMT_TYPENAME, type_obj_name);
+        __Pyx_DECREF_TypeName(type_obj_name);
     }
-    return __Pyx_PyObject_GetIndex(obj, key);
+    ret = -1;
+__PYX_GOOD:
+#if !CYTHON_USE_PYTYPE_LOOKUP
+    Py_XDECREF(object_reduce);
+    Py_XDECREF(object_reduce_ex);
+    Py_XDECREF(object_getstate);
+    Py_XDECREF(getstate);
+#endif
+    Py_XDECREF(reduce);
+    Py_XDECREF(reduce_ex);
+    Py_XDECREF(reduce_cython);
+    Py_XDECREF(setstate);
+    Py_XDECREF(setstate_cython);
+    return ret;
 }
 #endif
 
-/* decode_c_string */
-static CYTHON_INLINE PyObject* __Pyx_decode_c_string(
-         const char* cstring, Py_ssize_t start, Py_ssize_t stop,
-         const char* encoding, const char* errors,
-         PyObject* (*decode_func)(const char *s, Py_ssize_t size, const char *errors)) {
-    Py_ssize_t length;
-    if (unlikely((start < 0) | (stop < 0))) {
-        size_t slen = strlen(cstring);
-        if (unlikely(slen > (size_t) PY_SSIZE_T_MAX)) {
-            PyErr_SetString(PyExc_OverflowError,
-                            "c-string too long to convert to Python");
-            return NULL;
-        }
-        length = (Py_ssize_t) slen;
-        if (start < 0) {
-            start += length;
-            if (start < 0)
-                start = 0;
-        }
-        if (stop < 0)
-            stop += length;
-    }
-    if (unlikely(stop <= start))
-        return __Pyx_NewRef(__pyx_empty_unicode);
-    length = stop - start;
-    cstring += start;
-    if (decode_func) {
-        return decode_func(cstring, length, errors);
-    } else {
-        return PyUnicode_Decode(cstring, length, encoding, errors);
-    }
+/* FetchSharedCythonModule */
+static PyObject *__Pyx_FetchSharedCythonABIModule(void) {
+    return __Pyx_PyImport_AddModuleRef((char*) __PYX_ABI_MODULE_NAME);
 }
 
-/* PyErrExceptionMatches */
-#if CYTHON_FAST_THREAD_STATE
-static int __Pyx_PyErr_ExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
-    Py_ssize_t i, n;
-    n = PyTuple_GET_SIZE(tuple);
-#if PY_MAJOR_VERSION >= 3
-    for (i=0; i<n; i++) {
-        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
+/* FetchCommonType */
+static int __Pyx_VerifyCachedType(PyObject *cached_type,
+                               const char *name,
+                               Py_ssize_t basicsize,
+                               Py_ssize_t expected_basicsize) {
+    if (!PyType_Check(cached_type)) {
+        PyErr_Format(PyExc_TypeError,
+            "Shared Cython type %.200s is not a type object", name);
+        return -1;
     }
-#endif
-    for (i=0; i<n; i++) {
-        if (__Pyx_PyErr_GivenExceptionMatches(exc_type, PyTuple_GET_ITEM(tuple, i))) return 1;
+    if (basicsize != expected_basicsize) {
+        PyErr_Format(PyExc_TypeError,
+            "Shared Cython type %.200s has the wrong size, try recompiling",
+            name);
+        return -1;
     }
     return 0;
 }
-static CYTHON_INLINE int __Pyx_PyErr_ExceptionMatchesInState(PyThreadState* tstate, PyObject* err) {
-    PyObject *exc_type = tstate->curexc_type;
-    if (exc_type == err) return 1;
-    if (unlikely(!exc_type)) return 0;
-    if (unlikely(PyTuple_Check(err)))
-        return __Pyx_PyErr_ExceptionMatchesTuple(exc_type, err);
-    return __Pyx_PyErr_GivenExceptionMatches(exc_type, err);
-}
-#endif
-
-/* GetAttr3 */
-static PyObject *__Pyx_GetAttr3Default(PyObject *d) {
-    __Pyx_PyThreadState_declare
-    __Pyx_PyThreadState_assign
-    if (unlikely(!__Pyx_PyErr_ExceptionMatches(PyExc_AttributeError)))
-        return NULL;
-    __Pyx_PyErr_Clear();
-    Py_INCREF(d);
-    return d;
-}
-static CYTHON_INLINE PyObject *__Pyx_GetAttr3(PyObject *o, PyObject *n, PyObject *d) {
-    PyObject *r = __Pyx_GetAttr(o, n);
-    return (likely(r)) ? r : __Pyx_GetAttr3Default(d);
-}
-
-/* PyDictVersioning */
-#if CYTHON_USE_DICT_VERSIONS && CYTHON_USE_TYPE_SLOTS
-static CYTHON_INLINE PY_UINT64_T __Pyx_get_tp_dict_version(PyObject *obj) {
-    PyObject *dict = Py_TYPE(obj)->tp_dict;
-    return likely(dict) ? __PYX_GET_DICT_VERSION(dict) : 0;
+#if !CYTHON_USE_TYPE_SPECS
+static PyTypeObject* __Pyx_FetchCommonType(PyTypeObject* type) {
+    PyObject* abi_module;
+    const char* object_name;
+    PyTypeObject *cached_type = NULL;
+    abi_module = __Pyx_FetchSharedCythonABIModule();
+    if (!abi_module) return NULL;
+    object_name = strrchr(type->tp_name, '.');
+    object_name = object_name ? object_name+1 : type->tp_name;
+    cached_type = (PyTypeObject*) PyObject_GetAttrString(abi_module, object_name);
+    if (cached_type) {
+        if (__Pyx_VerifyCachedType(
+              (PyObject *)cached_type,
+              object_name,
+              cached_type->tp_basicsize,
+              type->tp_basicsize) < 0) {
+            goto bad;
+        }
+        goto done;
+    }
+    if (!PyErr_ExceptionMatches(PyExc_AttributeError)) goto bad;
+    PyErr_Clear();
+    if (PyType_Ready(type) < 0) goto bad;
+    if (PyObject_SetAttrString(abi_module, object_name, (PyObject *)type) < 0)
+        goto bad;
+    Py_INCREF(type);
+    cached_type = type;
+done:
+    Py_DECREF(abi_module);
+    return cached_type;
+bad:
+    Py_XDECREF(cached_type);
+    cached_type = NULL;
+    goto done;
 }
-static CYTHON_INLINE PY_UINT64_T __Pyx_get_object_dict_version(PyObject *obj) {
-    PyObject **dictptr = NULL;
-    Py_ssize_t offset = Py_TYPE(obj)->tp_dictoffset;
-    if (offset) {
-#if CYTHON_COMPILING_IN_CPYTHON
-        dictptr = (likely(offset > 0)) ? (PyObject **) ((char *)obj + offset) : _PyObject_GetDictPtr(obj);
 #else
-        dictptr = _PyObject_GetDictPtr(obj);
+static PyTypeObject *__Pyx_FetchCommonTypeFromSpec(PyObject *module, PyType_Spec *spec, PyObject *bases) {
+    PyObject *abi_module, *cached_type = NULL;
+    const char* object_name = strrchr(spec->name, '.');
+    object_name = object_name ? object_name+1 : spec->name;
+    abi_module = __Pyx_FetchSharedCythonABIModule();
+    if (!abi_module) return NULL;
+    cached_type = PyObject_GetAttrString(abi_module, object_name);
+    if (cached_type) {
+        Py_ssize_t basicsize;
+#if CYTHON_COMPILING_IN_LIMITED_API
+        PyObject *py_basicsize;
+        py_basicsize = PyObject_GetAttrString(cached_type, "__basicsize__");
+        if (unlikely(!py_basicsize)) goto bad;
+        basicsize = PyLong_AsSsize_t(py_basicsize);
+        Py_DECREF(py_basicsize);
+        py_basicsize = 0;
+        if (unlikely(basicsize == (Py_ssize_t)-1) && PyErr_Occurred()) goto bad;
+#else
+        basicsize = likely(PyType_Check(cached_type)) ? ((PyTypeObject*) cached_type)->tp_basicsize : -1;
 #endif
+        if (__Pyx_VerifyCachedType(
+              cached_type,
+              object_name,
+              basicsize,
+              spec->basicsize) < 0) {
+            goto bad;
+        }
+        goto done;
     }
-    return (dictptr && *dictptr) ? __PYX_GET_DICT_VERSION(*dictptr) : 0;
-}
-static CYTHON_INLINE int __Pyx_object_dict_version_matches(PyObject* obj, PY_UINT64_T tp_dict_version, PY_UINT64_T obj_dict_version) {
-    PyObject *dict = Py_TYPE(obj)->tp_dict;
-    if (unlikely(!dict) || unlikely(tp_dict_version != __PYX_GET_DICT_VERSION(dict)))
-        return 0;
-    return obj_dict_version == __Pyx_get_object_dict_version(obj);
+    if (!PyErr_ExceptionMatches(PyExc_AttributeError)) goto bad;
+    PyErr_Clear();
+    CYTHON_UNUSED_VAR(module);
+    cached_type = __Pyx_PyType_FromModuleAndSpec(abi_module, spec, bases);
+    if (unlikely(!cached_type)) goto bad;
+    if (unlikely(__Pyx_fix_up_extension_type_from_spec(spec, (PyTypeObject *) cached_type) < 0)) goto bad;
+    if (PyObject_SetAttrString(abi_module, object_name, cached_type) < 0) goto bad;
+done:
+    Py_DECREF(abi_module);
+    assert(cached_type == NULL || PyType_Check(cached_type));
+    return (PyTypeObject *) cached_type;
+bad:
+    Py_XDECREF(cached_type);
+    cached_type = NULL;
+    goto done;
 }
 #endif
 
-/* GetModuleGlobalName */
-#if CYTHON_USE_DICT_VERSIONS
-static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_version, PyObject **dict_cached_value)
-#else
-static CYTHON_INLINE PyObject *__Pyx__GetModuleGlobalName(PyObject *name)
-#endif
+/* PyVectorcallFastCallDict */
+#if CYTHON_METH_FASTCALL
+static PyObject *__Pyx_PyVectorcall_FastCallDict_kw(PyObject *func, __pyx_vectorcallfunc vc, PyObject *const *args, size_t nargs, PyObject *kw)
 {
-    PyObject *result;
-#if !CYTHON_AVOID_BORROWED_REFS
-#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030500A1
-    result = _PyDict_GetItem_KnownHash(__pyx_d, name, ((PyASCIIObject *) name)->hash);
-    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
-    if (likely(result)) {
-        return __Pyx_NewRef(result);
-    } else if (unlikely(PyErr_Occurred())) {
+    PyObject *res = NULL;
+    PyObject *kwnames;
+    PyObject **newargs;
+    PyObject **kwvalues;
+    Py_ssize_t i, pos;
+    size_t j;
+    PyObject *key, *value;
+    unsigned long keys_are_strings;
+    Py_ssize_t nkw = PyDict_GET_SIZE(kw);
+    newargs = (PyObject **)PyMem_Malloc((nargs + (size_t)nkw) * sizeof(args[0]));
+    if (unlikely(newargs == NULL)) {
+        PyErr_NoMemory();
         return NULL;
     }
-#else
-    result = PyDict_GetItem(__pyx_d, name);
-    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
-    if (likely(result)) {
-        return __Pyx_NewRef(result);
+    for (j = 0; j < nargs; j++) newargs[j] = args[j];
+    kwnames = PyTuple_New(nkw);
+    if (unlikely(kwnames == NULL)) {
+        PyMem_Free(newargs);
+        return NULL;
     }
-#endif
-#else
-    result = PyObject_GetItem(__pyx_d, name);
-    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
-    if (likely(result)) {
-        return __Pyx_NewRef(result);
+    kwvalues = newargs + nargs;
+    pos = i = 0;
+    keys_are_strings = Py_TPFLAGS_UNICODE_SUBCLASS;
+    while (PyDict_Next(kw, &pos, &key, &value)) {
+        keys_are_strings &= Py_TYPE(key)->tp_flags;
+        Py_INCREF(key);
+        Py_INCREF(value);
+        PyTuple_SET_ITEM(kwnames, i, key);
+        kwvalues[i] = value;
+        i++;
     }
-    PyErr_Clear();
-#endif
-    return __Pyx_GetBuiltinName(name);
-}
-
-/* RaiseTooManyValuesToUnpack */
-static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected) {
-    PyErr_Format(PyExc_ValueError,
-                 "too many values to unpack (expected %" CYTHON_FORMAT_SSIZE_T "d)", expected);
-}
-
-/* RaiseNeedMoreValuesToUnpack */
-static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index) {
-    PyErr_Format(PyExc_ValueError,
-                 "need more than %" CYTHON_FORMAT_SSIZE_T "d value%.1s to unpack",
-                 index, (index == 1) ? "" : "s");
-}
-
-/* RaiseNoneIterError */
-static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void) {
-    PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable");
-}
-
-/* ExtTypeTest */
-static CYTHON_INLINE int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type) {
-    if (unlikely(!type)) {
-        PyErr_SetString(PyExc_SystemError, "Missing type object");
-        return 0;
+    if (unlikely(!keys_are_strings)) {
+        PyErr_SetString(PyExc_TypeError, "keywords must be strings");
+        goto cleanup;
     }
-    if (likely(__Pyx_TypeCheck(obj, type)))
-        return 1;
-    PyErr_Format(PyExc_TypeError, "Cannot convert %.200s to %.200s",
-                 Py_TYPE(obj)->tp_name, type->tp_name);
-    return 0;
+    res = vc(func, newargs, nargs, kwnames);
+cleanup:
+    Py_DECREF(kwnames);
+    for (i = 0; i < nkw; i++)
+        Py_DECREF(kwvalues[i]);
+    PyMem_Free(newargs);
+    return res;
 }
-
-/* GetTopmostException */
-#if CYTHON_USE_EXC_INFO_STACK
-static _PyErr_StackItem *
-__Pyx_PyErr_GetTopmostException(PyThreadState *tstate)
+static CYTHON_INLINE PyObject *__Pyx_PyVectorcall_FastCallDict(PyObject *func, __pyx_vectorcallfunc vc, PyObject *const *args, size_t nargs, PyObject *kw)
 {
-    _PyErr_StackItem *exc_info = tstate->exc_info;
-    while ((exc_info->exc_type == NULL || exc_info->exc_type == Py_None) &&
-           exc_info->previous_item != NULL)
-    {
-        exc_info = exc_info->previous_item;
+    if (likely(kw == NULL) || PyDict_GET_SIZE(kw) == 0) {
+        return vc(func, args, nargs, NULL);
     }
-    return exc_info;
+    return __Pyx_PyVectorcall_FastCallDict_kw(func, vc, args, nargs, kw);
 }
 #endif
 
-/* SaveResetException */
-#if CYTHON_FAST_THREAD_STATE
-static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
-    #if CYTHON_USE_EXC_INFO_STACK
-    _PyErr_StackItem *exc_info = __Pyx_PyErr_GetTopmostException(tstate);
-    *type = exc_info->exc_type;
-    *value = exc_info->exc_value;
-    *tb = exc_info->exc_traceback;
-    #else
-    *type = tstate->exc_type;
-    *value = tstate->exc_value;
-    *tb = tstate->exc_traceback;
-    #endif
-    Py_XINCREF(*type);
-    Py_XINCREF(*value);
-    Py_XINCREF(*tb);
+/* CythonFunctionShared */
+#if CYTHON_COMPILING_IN_LIMITED_API
+static CYTHON_INLINE int __Pyx__IsSameCyOrCFunction(PyObject *func, void *cfunc) {
+    if (__Pyx_CyFunction_Check(func)) {
+        return PyCFunction_GetFunction(((__pyx_CyFunctionObject*)func)->func) == (PyCFunction) cfunc;
+    } else if (PyCFunction_Check(func)) {
+        return PyCFunction_GetFunction(func) == (PyCFunction) cfunc;
+    }
+    return 0;
 }
-static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
-    PyObject *tmp_type, *tmp_value, *tmp_tb;
-    #if CYTHON_USE_EXC_INFO_STACK
-    _PyErr_StackItem *exc_info = tstate->exc_info;
-    tmp_type = exc_info->exc_type;
-    tmp_value = exc_info->exc_value;
-    tmp_tb = exc_info->exc_traceback;
-    exc_info->exc_type = type;
-    exc_info->exc_value = value;
-    exc_info->exc_traceback = tb;
-    #else
-    tmp_type = tstate->exc_type;
-    tmp_value = tstate->exc_value;
-    tmp_tb = tstate->exc_traceback;
-    tstate->exc_type = type;
-    tstate->exc_value = value;
-    tstate->exc_traceback = tb;
-    #endif
-    Py_XDECREF(tmp_type);
-    Py_XDECREF(tmp_value);
-    Py_XDECREF(tmp_tb);
+#else
+static CYTHON_INLINE int __Pyx__IsSameCyOrCFunction(PyObject *func, void *cfunc) {
+    return __Pyx_CyOrPyCFunction_Check(func) && __Pyx_CyOrPyCFunction_GET_FUNCTION(func) == (PyCFunction) cfunc;
 }
 #endif
-
-/* GetException */
-#if CYTHON_FAST_THREAD_STATE
-static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb)
+static CYTHON_INLINE void __Pyx__CyFunction_SetClassObj(__pyx_CyFunctionObject* f, PyObject* classobj) {
+#if PY_VERSION_HEX < 0x030900B1 || CYTHON_COMPILING_IN_LIMITED_API
+    __Pyx_Py_XDECREF_SET(
+        __Pyx_CyFunction_GetClassObj(f),
+            ((classobj) ? __Pyx_NewRef(classobj) : NULL));
 #else
-static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb)
+    __Pyx_Py_XDECREF_SET(
+        ((PyCMethodObject *) (f))->mm_class,
+        (PyTypeObject*)((classobj) ? __Pyx_NewRef(classobj) : NULL));
 #endif
+}
+static PyObject *
+__Pyx_CyFunction_get_doc(__pyx_CyFunctionObject *op, void *closure)
 {
-    PyObject *local_type, *local_value, *local_tb;
-#if CYTHON_FAST_THREAD_STATE
-    PyObject *tmp_type, *tmp_value, *tmp_tb;
-    local_type = tstate->curexc_type;
-    local_value = tstate->curexc_value;
-    local_tb = tstate->curexc_traceback;
-    tstate->curexc_type = 0;
-    tstate->curexc_value = 0;
-    tstate->curexc_traceback = 0;
+    CYTHON_UNUSED_VAR(closure);
+    if (unlikely(op->func_doc == NULL)) {
+#if CYTHON_COMPILING_IN_LIMITED_API
+        op->func_doc = PyObject_GetAttrString(op->func, "__doc__");
+        if (unlikely(!op->func_doc)) return NULL;
 #else
-    PyErr_Fetch(&local_type, &local_value, &local_tb);
+        if (((PyCFunctionObject*)op)->m_ml->ml_doc) {
+#if PY_MAJOR_VERSION >= 3
+            op->func_doc = PyUnicode_FromString(((PyCFunctionObject*)op)->m_ml->ml_doc);
+#else
+            op->func_doc = PyString_FromString(((PyCFunctionObject*)op)->m_ml->ml_doc);
 #endif
-    PyErr_NormalizeException(&local_type, &local_value, &local_tb);
-#if CYTHON_FAST_THREAD_STATE
-    if (unlikely(tstate->curexc_type))
+            if (unlikely(op->func_doc == NULL))
+                return NULL;
+        } else {
+            Py_INCREF(Py_None);
+            return Py_None;
+        }
+#endif
+    }
+    Py_INCREF(op->func_doc);
+    return op->func_doc;
+}
+static int
+__Pyx_CyFunction_set_doc(__pyx_CyFunctionObject *op, PyObject *value, void *context)
+{
+    CYTHON_UNUSED_VAR(context);
+    if (value == NULL) {
+        value = Py_None;
+    }
+    Py_INCREF(value);
+    __Pyx_Py_XDECREF_SET(op->func_doc, value);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_name(__pyx_CyFunctionObject *op, void *context)
+{
+    CYTHON_UNUSED_VAR(context);
+    if (unlikely(op->func_name == NULL)) {
+#if CYTHON_COMPILING_IN_LIMITED_API
+        op->func_name = PyObject_GetAttrString(op->func, "__name__");
+#elif PY_MAJOR_VERSION >= 3
+        op->func_name = PyUnicode_InternFromString(((PyCFunctionObject*)op)->m_ml->ml_name);
 #else
-    if (unlikely(PyErr_Occurred()))
+        op->func_name = PyString_InternFromString(((PyCFunctionObject*)op)->m_ml->ml_name);
 #endif
-        goto bad;
-    #if PY_MAJOR_VERSION >= 3
-    if (local_tb) {
-        if (unlikely(PyException_SetTraceback(local_value, local_tb) < 0))
-            goto bad;
+        if (unlikely(op->func_name == NULL))
+            return NULL;
     }
-    #endif
-    Py_XINCREF(local_tb);
-    Py_XINCREF(local_type);
-    Py_XINCREF(local_value);
-    *type = local_type;
-    *value = local_value;
-    *tb = local_tb;
-#if CYTHON_FAST_THREAD_STATE
-    #if CYTHON_USE_EXC_INFO_STACK
+    Py_INCREF(op->func_name);
+    return op->func_name;
+}
+static int
+__Pyx_CyFunction_set_name(__pyx_CyFunctionObject *op, PyObject *value, void *context)
+{
+    CYTHON_UNUSED_VAR(context);
+#if PY_MAJOR_VERSION >= 3
+    if (unlikely(value == NULL || !PyUnicode_Check(value)))
+#else
+    if (unlikely(value == NULL || !PyString_Check(value)))
+#endif
     {
-        _PyErr_StackItem *exc_info = tstate->exc_info;
-        tmp_type = exc_info->exc_type;
-        tmp_value = exc_info->exc_value;
-        tmp_tb = exc_info->exc_traceback;
-        exc_info->exc_type = local_type;
-        exc_info->exc_value = local_value;
-        exc_info->exc_traceback = local_tb;
+        PyErr_SetString(PyExc_TypeError,
+                        "__name__ must be set to a string object");
+        return -1;
     }
-    #else
-    tmp_type = tstate->exc_type;
-    tmp_value = tstate->exc_value;
-    tmp_tb = tstate->exc_traceback;
-    tstate->exc_type = local_type;
-    tstate->exc_value = local_value;
-    tstate->exc_traceback = local_tb;
-    #endif
-    Py_XDECREF(tmp_type);
-    Py_XDECREF(tmp_value);
-    Py_XDECREF(tmp_tb);
+    Py_INCREF(value);
+    __Pyx_Py_XDECREF_SET(op->func_name, value);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_qualname(__pyx_CyFunctionObject *op, void *context)
+{
+    CYTHON_UNUSED_VAR(context);
+    Py_INCREF(op->func_qualname);
+    return op->func_qualname;
+}
+static int
+__Pyx_CyFunction_set_qualname(__pyx_CyFunctionObject *op, PyObject *value, void *context)
+{
+    CYTHON_UNUSED_VAR(context);
+#if PY_MAJOR_VERSION >= 3
+    if (unlikely(value == NULL || !PyUnicode_Check(value)))
 #else
-    PyErr_SetExcInfo(local_type, local_value, local_tb);
+    if (unlikely(value == NULL || !PyString_Check(value)))
 #endif
+    {
+        PyErr_SetString(PyExc_TypeError,
+                        "__qualname__ must be set to a string object");
+        return -1;
+    }
+    Py_INCREF(value);
+    __Pyx_Py_XDECREF_SET(op->func_qualname, value);
     return 0;
-bad:
-    *type = 0;
-    *value = 0;
-    *tb = 0;
-    Py_XDECREF(local_type);
-    Py_XDECREF(local_value);
-    Py_XDECREF(local_tb);
-    return -1;
 }
-
-/* SwapException */
-#if CYTHON_FAST_THREAD_STATE
-static CYTHON_INLINE void __Pyx__ExceptionSwap(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
-    PyObject *tmp_type, *tmp_value, *tmp_tb;
-    #if CYTHON_USE_EXC_INFO_STACK
-    _PyErr_StackItem *exc_info = tstate->exc_info;
-    tmp_type = exc_info->exc_type;
-    tmp_value = exc_info->exc_value;
-    tmp_tb = exc_info->exc_traceback;
-    exc_info->exc_type = *type;
-    exc_info->exc_value = *value;
-    exc_info->exc_traceback = *tb;
-    #else
-    tmp_type = tstate->exc_type;
-    tmp_value = tstate->exc_value;
-    tmp_tb = tstate->exc_traceback;
-    tstate->exc_type = *type;
-    tstate->exc_value = *value;
-    tstate->exc_traceback = *tb;
-    #endif
-    *type = tmp_type;
-    *value = tmp_value;
-    *tb = tmp_tb;
+static PyObject *
+__Pyx_CyFunction_get_dict(__pyx_CyFunctionObject *op, void *context)
+{
+    CYTHON_UNUSED_VAR(context);
+    if (unlikely(op->func_dict == NULL)) {
+        op->func_dict = PyDict_New();
+        if (unlikely(op->func_dict == NULL))
+            return NULL;
+    }
+    Py_INCREF(op->func_dict);
+    return op->func_dict;
 }
-#else
-static CYTHON_INLINE void __Pyx_ExceptionSwap(PyObject **type, PyObject **value, PyObject **tb) {
-    PyObject *tmp_type, *tmp_value, *tmp_tb;
-    PyErr_GetExcInfo(&tmp_type, &tmp_value, &tmp_tb);
-    PyErr_SetExcInfo(*type, *value, *tb);
-    *type = tmp_type;
-    *value = tmp_value;
-    *tb = tmp_tb;
+static int
+__Pyx_CyFunction_set_dict(__pyx_CyFunctionObject *op, PyObject *value, void *context)
+{
+    CYTHON_UNUSED_VAR(context);
+    if (unlikely(value == NULL)) {
+        PyErr_SetString(PyExc_TypeError,
+               "function's dictionary may not be deleted");
+        return -1;
+    }
+    if (unlikely(!PyDict_Check(value))) {
+        PyErr_SetString(PyExc_TypeError,
+               "setting function's dictionary to a non-dict");
+        return -1;
+    }
+    Py_INCREF(value);
+    __Pyx_Py_XDECREF_SET(op->func_dict, value);
+    return 0;
 }
-#endif
-
-/* Import */
-static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, int level) {
-    PyObject *empty_list = 0;
-    PyObject *module = 0;
-    PyObject *global_dict = 0;
-    PyObject *empty_dict = 0;
-    PyObject *list;
-    #if PY_MAJOR_VERSION < 3
-    PyObject *py_import;
-    py_import = __Pyx_PyObject_GetAttrStr(__pyx_b, __pyx_n_s_import);
-    if (!py_import)
-        goto bad;
-    #endif
-    if (from_list)
-        list = from_list;
+static PyObject *
+__Pyx_CyFunction_get_globals(__pyx_CyFunctionObject *op, void *context)
+{
+    CYTHON_UNUSED_VAR(context);
+    Py_INCREF(op->func_globals);
+    return op->func_globals;
+}
+static PyObject *
+__Pyx_CyFunction_get_closure(__pyx_CyFunctionObject *op, void *context)
+{
+    CYTHON_UNUSED_VAR(op);
+    CYTHON_UNUSED_VAR(context);
+    Py_INCREF(Py_None);
+    return Py_None;
+}
+static PyObject *
+__Pyx_CyFunction_get_code(__pyx_CyFunctionObject *op, void *context)
+{
+    PyObject* result = (op->func_code) ? op->func_code : Py_None;
+    CYTHON_UNUSED_VAR(context);
+    Py_INCREF(result);
+    return result;
+}
+static int
+__Pyx_CyFunction_init_defaults(__pyx_CyFunctionObject *op) {
+    int result = 0;
+    PyObject *res = op->defaults_getter((PyObject *) op);
+    if (unlikely(!res))
+        return -1;
+    #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
+    op->defaults_tuple = PyTuple_GET_ITEM(res, 0);
+    Py_INCREF(op->defaults_tuple);
+    op->defaults_kwdict = PyTuple_GET_ITEM(res, 1);
+    Py_INCREF(op->defaults_kwdict);
+    #else
+    op->defaults_tuple = __Pyx_PySequence_ITEM(res, 0);
+    if (unlikely(!op->defaults_tuple)) result = -1;
     else {
-        empty_list = PyList_New(0);
-        if (!empty_list)
-            goto bad;
-        list = empty_list;
+        op->defaults_kwdict = __Pyx_PySequence_ITEM(res, 1);
+        if (unlikely(!op->defaults_kwdict)) result = -1;
     }
-    global_dict = PyModule_GetDict(__pyx_m);
-    if (!global_dict)
-        goto bad;
-    empty_dict = PyDict_New();
-    if (!empty_dict)
-        goto bad;
-    {
-        #if PY_MAJOR_VERSION >= 3
-        if (level == -1) {
-            if ((1) && (strchr(__Pyx_MODULE_NAME, '.'))) {
-                module = PyImport_ImportModuleLevelObject(
-                    name, global_dict, empty_dict, list, 1);
-                if (!module) {
-                    if (!PyErr_ExceptionMatches(PyExc_ImportError))
-                        goto bad;
-                    PyErr_Clear();
-                }
-            }
-            level = 0;
-        }
-        #endif
-        if (!module) {
-            #if PY_MAJOR_VERSION < 3
-            PyObject *py_level = PyInt_FromLong(level);
-            if (!py_level)
-                goto bad;
-            module = PyObject_CallFunctionObjArgs(py_import,
-                name, global_dict, empty_dict, list, py_level, (PyObject *)NULL);
-            Py_DECREF(py_level);
-            #else
-            module = PyImport_ImportModuleLevelObject(
-                name, global_dict, empty_dict, list, level);
-            #endif
-        }
-    }
-bad:
-    #if PY_MAJOR_VERSION < 3
-    Py_XDECREF(py_import);
     #endif
-    Py_XDECREF(empty_list);
-    Py_XDECREF(empty_dict);
-    return module;
+    Py_DECREF(res);
+    return result;
 }
-
-/* FastTypeChecks */
-#if CYTHON_COMPILING_IN_CPYTHON
-static int __Pyx_InBases(PyTypeObject *a, PyTypeObject *b) {
-    while (a) {
-        a = a->tp_base;
-        if (a == b)
-            return 1;
+static int
+__Pyx_CyFunction_set_defaults(__pyx_CyFunctionObject *op, PyObject* value, void *context) {
+    CYTHON_UNUSED_VAR(context);
+    if (!value) {
+        value = Py_None;
+    } else if (unlikely(value != Py_None && !PyTuple_Check(value))) {
+        PyErr_SetString(PyExc_TypeError,
+                        "__defaults__ must be set to a tuple object");
+        return -1;
     }
-    return b == &PyBaseObject_Type;
+    PyErr_WarnEx(PyExc_RuntimeWarning, "changes to cyfunction.__defaults__ will not "
+                 "currently affect the values used in function calls", 1);
+    Py_INCREF(value);
+    __Pyx_Py_XDECREF_SET(op->defaults_tuple, value);
+    return 0;
 }
-static CYTHON_INLINE int __Pyx_IsSubtype(PyTypeObject *a, PyTypeObject *b) {
-    PyObject *mro;
-    if (a == b) return 1;
-    mro = a->tp_mro;
-    if (likely(mro)) {
-        Py_ssize_t i, n;
-        n = PyTuple_GET_SIZE(mro);
-        for (i = 0; i < n; i++) {
-            if (PyTuple_GET_ITEM(mro, i) == (PyObject *)b)
-                return 1;
+static PyObject *
+__Pyx_CyFunction_get_defaults(__pyx_CyFunctionObject *op, void *context) {
+    PyObject* result = op->defaults_tuple;
+    CYTHON_UNUSED_VAR(context);
+    if (unlikely(!result)) {
+        if (op->defaults_getter) {
+            if (unlikely(__Pyx_CyFunction_init_defaults(op) < 0)) return NULL;
+            result = op->defaults_tuple;
+        } else {
+            result = Py_None;
         }
-        return 0;
     }
-    return __Pyx_InBases(a, b);
+    Py_INCREF(result);
+    return result;
 }
-#if PY_MAJOR_VERSION == 2
-static int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err, PyObject* exc_type1, PyObject* exc_type2) {
-    PyObject *exception, *value, *tb;
-    int res;
-    __Pyx_PyThreadState_declare
-    __Pyx_PyThreadState_assign
-    __Pyx_ErrFetch(&exception, &value, &tb);
-    res = exc_type1 ? PyObject_IsSubclass(err, exc_type1) : 0;
-    if (unlikely(res == -1)) {
-        PyErr_WriteUnraisable(err);
-        res = 0;
+static int
+__Pyx_CyFunction_set_kwdefaults(__pyx_CyFunctionObject *op, PyObject* value, void *context) {
+    CYTHON_UNUSED_VAR(context);
+    if (!value) {
+        value = Py_None;
+    } else if (unlikely(value != Py_None && !PyDict_Check(value))) {
+        PyErr_SetString(PyExc_TypeError,
+                        "__kwdefaults__ must be set to a dict object");
+        return -1;
     }
-    if (!res) {
-        res = PyObject_IsSubclass(err, exc_type2);
-        if (unlikely(res == -1)) {
-            PyErr_WriteUnraisable(err);
-            res = 0;
+    PyErr_WarnEx(PyExc_RuntimeWarning, "changes to cyfunction.__kwdefaults__ will not "
+                 "currently affect the values used in function calls", 1);
+    Py_INCREF(value);
+    __Pyx_Py_XDECREF_SET(op->defaults_kwdict, value);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_kwdefaults(__pyx_CyFunctionObject *op, void *context) {
+    PyObject* result = op->defaults_kwdict;
+    CYTHON_UNUSED_VAR(context);
+    if (unlikely(!result)) {
+        if (op->defaults_getter) {
+            if (unlikely(__Pyx_CyFunction_init_defaults(op) < 0)) return NULL;
+            result = op->defaults_kwdict;
+        } else {
+            result = Py_None;
         }
     }
-    __Pyx_ErrRestore(exception, value, tb);
-    return res;
+    Py_INCREF(result);
+    return result;
+}
+static int
+__Pyx_CyFunction_set_annotations(__pyx_CyFunctionObject *op, PyObject* value, void *context) {
+    CYTHON_UNUSED_VAR(context);
+    if (!value || value == Py_None) {
+        value = NULL;
+    } else if (unlikely(!PyDict_Check(value))) {
+        PyErr_SetString(PyExc_TypeError,
+                        "__annotations__ must be set to a dict object");
+        return -1;
+    }
+    Py_XINCREF(value);
+    __Pyx_Py_XDECREF_SET(op->func_annotations, value);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_annotations(__pyx_CyFunctionObject *op, void *context) {
+    PyObject* result = op->func_annotations;
+    CYTHON_UNUSED_VAR(context);
+    if (unlikely(!result)) {
+        result = PyDict_New();
+        if (unlikely(!result)) return NULL;
+        op->func_annotations = result;
+    }
+    Py_INCREF(result);
+    return result;
 }
+static PyObject *
+__Pyx_CyFunction_get_is_coroutine(__pyx_CyFunctionObject *op, void *context) {
+    int is_coroutine;
+    CYTHON_UNUSED_VAR(context);
+    if (op->func_is_coroutine) {
+        return __Pyx_NewRef(op->func_is_coroutine);
+    }
+    is_coroutine = op->flags & __Pyx_CYFUNCTION_COROUTINE;
+#if PY_VERSION_HEX >= 0x03050000
+    if (is_coroutine) {
+        PyObject *module, *fromlist, *marker = __pyx_n_s_is_coroutine;
+        fromlist = PyList_New(1);
+        if (unlikely(!fromlist)) return NULL;
+        Py_INCREF(marker);
+#if CYTHON_ASSUME_SAFE_MACROS
+        PyList_SET_ITEM(fromlist, 0, marker);
 #else
-static CYTHON_INLINE int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err, PyObject* exc_type1, PyObject *exc_type2) {
-    int res = exc_type1 ? __Pyx_IsSubtype((PyTypeObject*)err, (PyTypeObject*)exc_type1) : 0;
-    if (!res) {
-        res = __Pyx_IsSubtype((PyTypeObject*)err, (PyTypeObject*)exc_type2);
+        if (unlikely(PyList_SetItem(fromlist, 0, marker) < 0)) {
+            Py_DECREF(marker);
+            Py_DECREF(fromlist);
+            return NULL;
+        }
+#endif
+        module = PyImport_ImportModuleLevelObject(__pyx_n_s_asyncio_coroutines, NULL, NULL, fromlist, 0);
+        Py_DECREF(fromlist);
+        if (unlikely(!module)) goto ignore;
+        op->func_is_coroutine = __Pyx_PyObject_GetAttrStr(module, marker);
+        Py_DECREF(module);
+        if (likely(op->func_is_coroutine)) {
+            return __Pyx_NewRef(op->func_is_coroutine);
+        }
+ignore:
+        PyErr_Clear();
     }
-    return res;
+#endif
+    op->func_is_coroutine = __Pyx_PyBool_FromLong(is_coroutine);
+    return __Pyx_NewRef(op->func_is_coroutine);
+}
+#if CYTHON_COMPILING_IN_LIMITED_API
+static PyObject *
+__Pyx_CyFunction_get_module(__pyx_CyFunctionObject *op, void *context) {
+    CYTHON_UNUSED_VAR(context);
+    return PyObject_GetAttrString(op->func, "__module__");
+}
+static int
+__Pyx_CyFunction_set_module(__pyx_CyFunctionObject *op, PyObject* value, void *context) {
+    CYTHON_UNUSED_VAR(context);
+    return PyObject_SetAttrString(op->func, "__module__", value);
 }
 #endif
-static int __Pyx_PyErr_GivenExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
-    Py_ssize_t i, n;
-    assert(PyExceptionClass_Check(exc_type));
-    n = PyTuple_GET_SIZE(tuple);
+static PyGetSetDef __pyx_CyFunction_getsets[] = {
+    {(char *) "func_doc", (getter)__Pyx_CyFunction_get_doc, (setter)__Pyx_CyFunction_set_doc, 0, 0},
+    {(char *) "__doc__",  (getter)__Pyx_CyFunction_get_doc, (setter)__Pyx_CyFunction_set_doc, 0, 0},
+    {(char *) "func_name", (getter)__Pyx_CyFunction_get_name, (setter)__Pyx_CyFunction_set_name, 0, 0},
+    {(char *) "__name__", (getter)__Pyx_CyFunction_get_name, (setter)__Pyx_CyFunction_set_name, 0, 0},
+    {(char *) "__qualname__", (getter)__Pyx_CyFunction_get_qualname, (setter)__Pyx_CyFunction_set_qualname, 0, 0},
+    {(char *) "func_dict", (getter)__Pyx_CyFunction_get_dict, (setter)__Pyx_CyFunction_set_dict, 0, 0},
+    {(char *) "__dict__", (getter)__Pyx_CyFunction_get_dict, (setter)__Pyx_CyFunction_set_dict, 0, 0},
+    {(char *) "func_globals", (getter)__Pyx_CyFunction_get_globals, 0, 0, 0},
+    {(char *) "__globals__", (getter)__Pyx_CyFunction_get_globals, 0, 0, 0},
+    {(char *) "func_closure", (getter)__Pyx_CyFunction_get_closure, 0, 0, 0},
+    {(char *) "__closure__", (getter)__Pyx_CyFunction_get_closure, 0, 0, 0},
+    {(char *) "func_code", (getter)__Pyx_CyFunction_get_code, 0, 0, 0},
+    {(char *) "__code__", (getter)__Pyx_CyFunction_get_code, 0, 0, 0},
+    {(char *) "func_defaults", (getter)__Pyx_CyFunction_get_defaults, (setter)__Pyx_CyFunction_set_defaults, 0, 0},
+    {(char *) "__defaults__", (getter)__Pyx_CyFunction_get_defaults, (setter)__Pyx_CyFunction_set_defaults, 0, 0},
+    {(char *) "__kwdefaults__", (getter)__Pyx_CyFunction_get_kwdefaults, (setter)__Pyx_CyFunction_set_kwdefaults, 0, 0},
+    {(char *) "__annotations__", (getter)__Pyx_CyFunction_get_annotations, (setter)__Pyx_CyFunction_set_annotations, 0, 0},
+    {(char *) "_is_coroutine", (getter)__Pyx_CyFunction_get_is_coroutine, 0, 0, 0},
+#if CYTHON_COMPILING_IN_LIMITED_API
+    {"__module__", (getter)__Pyx_CyFunction_get_module, (setter)__Pyx_CyFunction_set_module, 0, 0},
+#endif
+    {0, 0, 0, 0, 0}
+};
+static PyMemberDef __pyx_CyFunction_members[] = {
+#if !CYTHON_COMPILING_IN_LIMITED_API
+    {(char *) "__module__", T_OBJECT, offsetof(PyCFunctionObject, m_module), 0, 0},
+#endif
+#if CYTHON_USE_TYPE_SPECS
+    {(char *) "__dictoffset__", T_PYSSIZET, offsetof(__pyx_CyFunctionObject, func_dict), READONLY, 0},
+#if CYTHON_METH_FASTCALL
+#if CYTHON_BACKPORT_VECTORCALL
+    {(char *) "__vectorcalloffset__", T_PYSSIZET, offsetof(__pyx_CyFunctionObject, func_vectorcall), READONLY, 0},
+#else
+#if !CYTHON_COMPILING_IN_LIMITED_API
+    {(char *) "__vectorcalloffset__", T_PYSSIZET, offsetof(PyCFunctionObject, vectorcall), READONLY, 0},
+#endif
+#endif
+#endif
+#if PY_VERSION_HEX < 0x030500A0 || CYTHON_COMPILING_IN_LIMITED_API
+    {(char *) "__weaklistoffset__", T_PYSSIZET, offsetof(__pyx_CyFunctionObject, func_weakreflist), READONLY, 0},
+#else
+    {(char *) "__weaklistoffset__", T_PYSSIZET, offsetof(PyCFunctionObject, m_weakreflist), READONLY, 0},
+#endif
+#endif
+    {0, 0, 0,  0, 0}
+};
+static PyObject *
+__Pyx_CyFunction_reduce(__pyx_CyFunctionObject *m, PyObject *args)
+{
+    CYTHON_UNUSED_VAR(args);
 #if PY_MAJOR_VERSION >= 3
-    for (i=0; i<n; i++) {
-        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
+    Py_INCREF(m->func_qualname);
+    return m->func_qualname;
+#else
+    return PyString_FromString(((PyCFunctionObject*)m)->m_ml->ml_name);
+#endif
+}
+static PyMethodDef __pyx_CyFunction_methods[] = {
+    {"__reduce__", (PyCFunction)__Pyx_CyFunction_reduce, METH_VARARGS, 0},
+    {0, 0, 0, 0}
+};
+#if PY_VERSION_HEX < 0x030500A0 || CYTHON_COMPILING_IN_LIMITED_API
+#define __Pyx_CyFunction_weakreflist(cyfunc) ((cyfunc)->func_weakreflist)
+#else
+#define __Pyx_CyFunction_weakreflist(cyfunc) (((PyCFunctionObject*)cyfunc)->m_weakreflist)
+#endif
+static PyObject *__Pyx_CyFunction_Init(__pyx_CyFunctionObject *op, PyMethodDef *ml, int flags, PyObject* qualname,
+                                       PyObject *closure, PyObject *module, PyObject* globals, PyObject* code) {
+#if !CYTHON_COMPILING_IN_LIMITED_API
+    PyCFunctionObject *cf = (PyCFunctionObject*) op;
+#endif
+    if (unlikely(op == NULL))
+        return NULL;
+#if CYTHON_COMPILING_IN_LIMITED_API
+    op->func = PyCFunction_NewEx(ml, (PyObject*)op, module);
+    if (unlikely(!op->func)) return NULL;
+#endif
+    op->flags = flags;
+    __Pyx_CyFunction_weakreflist(op) = NULL;
+#if !CYTHON_COMPILING_IN_LIMITED_API
+    cf->m_ml = ml;
+    cf->m_self = (PyObject *) op;
+#endif
+    Py_XINCREF(closure);
+    op->func_closure = closure;
+#if !CYTHON_COMPILING_IN_LIMITED_API
+    Py_XINCREF(module);
+    cf->m_module = module;
+#endif
+    op->func_dict = NULL;
+    op->func_name = NULL;
+    Py_INCREF(qualname);
+    op->func_qualname = qualname;
+    op->func_doc = NULL;
+#if PY_VERSION_HEX < 0x030900B1 || CYTHON_COMPILING_IN_LIMITED_API
+    op->func_classobj = NULL;
+#else
+    ((PyCMethodObject*)op)->mm_class = NULL;
+#endif
+    op->func_globals = globals;
+    Py_INCREF(op->func_globals);
+    Py_XINCREF(code);
+    op->func_code = code;
+    op->defaults_pyobjects = 0;
+    op->defaults_size = 0;
+    op->defaults = NULL;
+    op->defaults_tuple = NULL;
+    op->defaults_kwdict = NULL;
+    op->defaults_getter = NULL;
+    op->func_annotations = NULL;
+    op->func_is_coroutine = NULL;
+#if CYTHON_METH_FASTCALL
+    switch (ml->ml_flags & (METH_VARARGS | METH_FASTCALL | METH_NOARGS | METH_O | METH_KEYWORDS | METH_METHOD)) {
+    case METH_NOARGS:
+        __Pyx_CyFunction_func_vectorcall(op) = __Pyx_CyFunction_Vectorcall_NOARGS;
+        break;
+    case METH_O:
+        __Pyx_CyFunction_func_vectorcall(op) = __Pyx_CyFunction_Vectorcall_O;
+        break;
+    case METH_METHOD | METH_FASTCALL | METH_KEYWORDS:
+        __Pyx_CyFunction_func_vectorcall(op) = __Pyx_CyFunction_Vectorcall_FASTCALL_KEYWORDS_METHOD;
+        break;
+    case METH_FASTCALL | METH_KEYWORDS:
+        __Pyx_CyFunction_func_vectorcall(op) = __Pyx_CyFunction_Vectorcall_FASTCALL_KEYWORDS;
+        break;
+    case METH_VARARGS | METH_KEYWORDS:
+        __Pyx_CyFunction_func_vectorcall(op) = NULL;
+        break;
+    default:
+        PyErr_SetString(PyExc_SystemError, "Bad call flags for CyFunction");
+        Py_DECREF(op);
+        return NULL;
+    }
+#endif
+    return (PyObject *) op;
+}
+static int
+__Pyx_CyFunction_clear(__pyx_CyFunctionObject *m)
+{
+    Py_CLEAR(m->func_closure);
+#if CYTHON_COMPILING_IN_LIMITED_API
+    Py_CLEAR(m->func);
+#else
+    Py_CLEAR(((PyCFunctionObject*)m)->m_module);
+#endif
+    Py_CLEAR(m->func_dict);
+    Py_CLEAR(m->func_name);
+    Py_CLEAR(m->func_qualname);
+    Py_CLEAR(m->func_doc);
+    Py_CLEAR(m->func_globals);
+    Py_CLEAR(m->func_code);
+#if !CYTHON_COMPILING_IN_LIMITED_API
+#if PY_VERSION_HEX < 0x030900B1
+    Py_CLEAR(__Pyx_CyFunction_GetClassObj(m));
+#else
+    {
+        PyObject *cls = (PyObject*) ((PyCMethodObject *) (m))->mm_class;
+        ((PyCMethodObject *) (m))->mm_class = NULL;
+        Py_XDECREF(cls);
     }
 #endif
-    for (i=0; i<n; i++) {
-        PyObject *t = PyTuple_GET_ITEM(tuple, i);
-        #if PY_MAJOR_VERSION < 3
-        if (likely(exc_type == t)) return 1;
-        #endif
-        if (likely(PyExceptionClass_Check(t))) {
-            if (__Pyx_inner_PyErr_GivenExceptionMatches2(exc_type, NULL, t)) return 1;
-        } else {
-        }
+#endif
+    Py_CLEAR(m->defaults_tuple);
+    Py_CLEAR(m->defaults_kwdict);
+    Py_CLEAR(m->func_annotations);
+    Py_CLEAR(m->func_is_coroutine);
+    if (m->defaults) {
+        PyObject **pydefaults = __Pyx_CyFunction_Defaults(PyObject *, m);
+        int i;
+        for (i = 0; i < m->defaults_pyobjects; i++)
+            Py_XDECREF(pydefaults[i]);
+        PyObject_Free(m->defaults);
+        m->defaults = NULL;
     }
     return 0;
 }
-static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches(PyObject *err, PyObject* exc_type) {
-    if (likely(err == exc_type)) return 1;
-    if (likely(PyExceptionClass_Check(err))) {
-        if (likely(PyExceptionClass_Check(exc_type))) {
-            return __Pyx_inner_PyErr_GivenExceptionMatches2(err, NULL, exc_type);
-        } else if (likely(PyTuple_Check(exc_type))) {
-            return __Pyx_PyErr_GivenExceptionMatchesTuple(err, exc_type);
-        } else {
-        }
-    }
-    return PyErr_GivenExceptionMatches(err, exc_type);
+static void __Pyx__CyFunction_dealloc(__pyx_CyFunctionObject *m)
+{
+    if (__Pyx_CyFunction_weakreflist(m) != NULL)
+        PyObject_ClearWeakRefs((PyObject *) m);
+    __Pyx_CyFunction_clear(m);
+    __Pyx_PyHeapTypeObject_GC_Del(m);
 }
-static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObject *exc_type1, PyObject *exc_type2) {
-    assert(PyExceptionClass_Check(exc_type1));
-    assert(PyExceptionClass_Check(exc_type2));
-    if (likely(err == exc_type1 || err == exc_type2)) return 1;
-    if (likely(PyExceptionClass_Check(err))) {
-        return __Pyx_inner_PyErr_GivenExceptionMatches2(err, exc_type1, exc_type2);
-    }
-    return (PyErr_GivenExceptionMatches(err, exc_type1) || PyErr_GivenExceptionMatches(err, exc_type2));
+static void __Pyx_CyFunction_dealloc(__pyx_CyFunctionObject *m)
+{
+    PyObject_GC_UnTrack(m);
+    __Pyx__CyFunction_dealloc(m);
 }
+static int __Pyx_CyFunction_traverse(__pyx_CyFunctionObject *m, visitproc visit, void *arg)
+{
+    Py_VISIT(m->func_closure);
+#if CYTHON_COMPILING_IN_LIMITED_API
+    Py_VISIT(m->func);
+#else
+    Py_VISIT(((PyCFunctionObject*)m)->m_module);
 #endif
-
-/* PyIntBinop */
-#if !CYTHON_COMPILING_IN_PYPY
-static PyObject* __Pyx_PyInt_AddObjC(PyObject *op1, PyObject *op2, CYTHON_UNUSED long intval, int inplace, int zerodivision_check) {
-    (void)inplace;
-    (void)zerodivision_check;
-    #if PY_MAJOR_VERSION < 3
-    if (likely(PyInt_CheckExact(op1))) {
-        const long b = intval;
-        long x;
-        long a = PyInt_AS_LONG(op1);
-            x = (long)((unsigned long)a + b);
-            if (likely((x^a) >= 0 || (x^b) >= 0))
-                return PyInt_FromLong(x);
-            return PyLong_Type.tp_as_number->nb_add(op1, op2);
-    }
-    #endif
-    #if CYTHON_USE_PYLONG_INTERNALS
-    if (likely(PyLong_CheckExact(op1))) {
-        const long b = intval;
-        long a, x;
-#ifdef HAVE_LONG_LONG
-        const PY_LONG_LONG llb = intval;
-        PY_LONG_LONG lla, llx;
-#endif
-        const digit* digits = ((PyLongObject*)op1)->ob_digit;
-        const Py_ssize_t size = Py_SIZE(op1);
-        if (likely(__Pyx_sst_abs(size) <= 1)) {
-            a = likely(size) ? digits[0] : 0;
-            if (size == -1) a = -a;
-        } else {
-            switch (size) {
-                case -2:
-                    if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
-                        a = -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]));
-                        break;
-#ifdef HAVE_LONG_LONG
-                    } else if (8 * sizeof(PY_LONG_LONG) - 1 > 2 * PyLong_SHIFT) {
-                        lla = -(PY_LONG_LONG) (((((unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0]));
-                        goto long_long;
+    Py_VISIT(m->func_dict);
+    Py_VISIT(m->func_name);
+    Py_VISIT(m->func_qualname);
+    Py_VISIT(m->func_doc);
+    Py_VISIT(m->func_globals);
+    Py_VISIT(m->func_code);
+#if !CYTHON_COMPILING_IN_LIMITED_API
+    Py_VISIT(__Pyx_CyFunction_GetClassObj(m));
 #endif
-                    }
-                    CYTHON_FALLTHROUGH;
-                case 2:
-                    if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
-                        a = (long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]));
-                        break;
-#ifdef HAVE_LONG_LONG
-                    } else if (8 * sizeof(PY_LONG_LONG) - 1 > 2 * PyLong_SHIFT) {
-                        lla = (PY_LONG_LONG) (((((unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0]));
-                        goto long_long;
+    Py_VISIT(m->defaults_tuple);
+    Py_VISIT(m->defaults_kwdict);
+    Py_VISIT(m->func_is_coroutine);
+    if (m->defaults) {
+        PyObject **pydefaults = __Pyx_CyFunction_Defaults(PyObject *, m);
+        int i;
+        for (i = 0; i < m->defaults_pyobjects; i++)
+            Py_VISIT(pydefaults[i]);
+    }
+    return 0;
+}
+static PyObject*
+__Pyx_CyFunction_repr(__pyx_CyFunctionObject *op)
+{
+#if PY_MAJOR_VERSION >= 3
+    return PyUnicode_FromFormat("<cyfunction %U at %p>",
+                                op->func_qualname, (void *)op);
+#else
+    return PyString_FromFormat("<cyfunction %s at %p>",
+                               PyString_AsString(op->func_qualname), (void *)op);
 #endif
-                    }
-                    CYTHON_FALLTHROUGH;
-                case -3:
-                    if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) {
-                        a = -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]));
-                        break;
-#ifdef HAVE_LONG_LONG
-                    } else if (8 * sizeof(PY_LONG_LONG) - 1 > 3 * PyLong_SHIFT) {
-                        lla = -(PY_LONG_LONG) (((((((unsigned PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0]));
-                        goto long_long;
+}
+static PyObject * __Pyx_CyFunction_CallMethod(PyObject *func, PyObject *self, PyObject *arg, PyObject *kw) {
+#if CYTHON_COMPILING_IN_LIMITED_API
+    PyObject *f = ((__pyx_CyFunctionObject*)func)->func;
+    PyObject *py_name = NULL;
+    PyCFunction meth;
+    int flags;
+    meth = PyCFunction_GetFunction(f);
+    if (unlikely(!meth)) return NULL;
+    flags = PyCFunction_GetFlags(f);
+    if (unlikely(flags < 0)) return NULL;
+#else
+    PyCFunctionObject* f = (PyCFunctionObject*)func;
+    PyCFunction meth = f->m_ml->ml_meth;
+    int flags = f->m_ml->ml_flags;
 #endif
-                    }
-                    CYTHON_FALLTHROUGH;
-                case 3:
-                    if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) {
-                        a = (long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]));
-                        break;
-#ifdef HAVE_LONG_LONG
-                    } else if (8 * sizeof(PY_LONG_LONG) - 1 > 3 * PyLong_SHIFT) {
-                        lla = (PY_LONG_LONG) (((((((unsigned PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0]));
-                        goto long_long;
+    Py_ssize_t size;
+    switch (flags & (METH_VARARGS | METH_KEYWORDS | METH_NOARGS | METH_O)) {
+    case METH_VARARGS:
+        if (likely(kw == NULL || PyDict_Size(kw) == 0))
+            return (*meth)(self, arg);
+        break;
+    case METH_VARARGS | METH_KEYWORDS:
+        return (*(PyCFunctionWithKeywords)(void*)meth)(self, arg, kw);
+    case METH_NOARGS:
+        if (likely(kw == NULL || PyDict_Size(kw) == 0)) {
+#if CYTHON_ASSUME_SAFE_MACROS
+            size = PyTuple_GET_SIZE(arg);
+#else
+            size = PyTuple_Size(arg);
+            if (unlikely(size < 0)) return NULL;
 #endif
-                    }
-                    CYTHON_FALLTHROUGH;
-                case -4:
-                    if (8 * sizeof(long) - 1 > 4 * PyLong_SHIFT) {
-                        a = -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]));
-                        break;
-#ifdef HAVE_LONG_LONG
-                    } else if (8 * sizeof(PY_LONG_LONG) - 1 > 4 * PyLong_SHIFT) {
-                        lla = -(PY_LONG_LONG) (((((((((unsigned PY_LONG_LONG)digits[3]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0]));
-                        goto long_long;
+            if (likely(size == 0))
+                return (*meth)(self, NULL);
+#if CYTHON_COMPILING_IN_LIMITED_API
+            py_name = __Pyx_CyFunction_get_name((__pyx_CyFunctionObject*)func, NULL);
+            if (!py_name) return NULL;
+            PyErr_Format(PyExc_TypeError,
+                "%.200S() takes no arguments (%" CYTHON_FORMAT_SSIZE_T "d given)",
+                py_name, size);
+            Py_DECREF(py_name);
+#else
+            PyErr_Format(PyExc_TypeError,
+                "%.200s() takes no arguments (%" CYTHON_FORMAT_SSIZE_T "d given)",
+                f->m_ml->ml_name, size);
 #endif
-                    }
-                    CYTHON_FALLTHROUGH;
-                case 4:
-                    if (8 * sizeof(long) - 1 > 4 * PyLong_SHIFT) {
-                        a = (long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]));
-                        break;
-#ifdef HAVE_LONG_LONG
-                    } else if (8 * sizeof(PY_LONG_LONG) - 1 > 4 * PyLong_SHIFT) {
-                        lla = (PY_LONG_LONG) (((((((((unsigned PY_LONG_LONG)digits[3]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0]));
-                        goto long_long;
+            return NULL;
+        }
+        break;
+    case METH_O:
+        if (likely(kw == NULL || PyDict_Size(kw) == 0)) {
+#if CYTHON_ASSUME_SAFE_MACROS
+            size = PyTuple_GET_SIZE(arg);
+#else
+            size = PyTuple_Size(arg);
+            if (unlikely(size < 0)) return NULL;
 #endif
-                    }
-                    CYTHON_FALLTHROUGH;
-                default: return PyLong_Type.tp_as_number->nb_add(op1, op2);
+            if (likely(size == 1)) {
+                PyObject *result, *arg0;
+                #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
+                arg0 = PyTuple_GET_ITEM(arg, 0);
+                #else
+                arg0 = __Pyx_PySequence_ITEM(arg, 0); if (unlikely(!arg0)) return NULL;
+                #endif
+                result = (*meth)(self, arg0);
+                #if !(CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS)
+                Py_DECREF(arg0);
+                #endif
+                return result;
             }
-        }
-                x = a + b;
-            return PyLong_FromLong(x);
-#ifdef HAVE_LONG_LONG
-        long_long:
-                llx = lla + llb;
-            return PyLong_FromLongLong(llx);
+#if CYTHON_COMPILING_IN_LIMITED_API
+            py_name = __Pyx_CyFunction_get_name((__pyx_CyFunctionObject*)func, NULL);
+            if (!py_name) return NULL;
+            PyErr_Format(PyExc_TypeError,
+                "%.200S() takes exactly one argument (%" CYTHON_FORMAT_SSIZE_T "d given)",
+                py_name, size);
+            Py_DECREF(py_name);
+#else
+            PyErr_Format(PyExc_TypeError,
+                "%.200s() takes exactly one argument (%" CYTHON_FORMAT_SSIZE_T "d given)",
+                f->m_ml->ml_name, size);
 #endif
-        
-        
-    }
-    #endif
-    if (PyFloat_CheckExact(op1)) {
-        const long b = intval;
-        double a = PyFloat_AS_DOUBLE(op1);
-            double result;
-            PyFPE_START_PROTECT("add", return NULL)
-            result = ((double)a) + (double)b;
-            PyFPE_END_PROTECT(result)
-            return PyFloat_FromDouble(result);
+            return NULL;
+        }
+        break;
+    default:
+        PyErr_SetString(PyExc_SystemError, "Bad call flags for CyFunction");
+        return NULL;
     }
-    return (inplace ? PyNumber_InPlaceAdd : PyNumber_Add)(op1, op2);
+#if CYTHON_COMPILING_IN_LIMITED_API
+    py_name = __Pyx_CyFunction_get_name((__pyx_CyFunctionObject*)func, NULL);
+    if (!py_name) return NULL;
+    PyErr_Format(PyExc_TypeError, "%.200S() takes no keyword arguments",
+                 py_name);
+    Py_DECREF(py_name);
+#else
+    PyErr_Format(PyExc_TypeError, "%.200s() takes no keyword arguments",
+                 f->m_ml->ml_name);
+#endif
+    return NULL;
 }
+static CYTHON_INLINE PyObject *__Pyx_CyFunction_Call(PyObject *func, PyObject *arg, PyObject *kw) {
+    PyObject *self, *result;
+#if CYTHON_COMPILING_IN_LIMITED_API
+    self = PyCFunction_GetSelf(((__pyx_CyFunctionObject*)func)->func);
+    if (unlikely(!self) && PyErr_Occurred()) return NULL;
+#else
+    self = ((PyCFunctionObject*)func)->m_self;
 #endif
-
-/* DivInt[long] */
-static CYTHON_INLINE long __Pyx_div_long(long a, long b) {
-    long q = a / b;
-    long r = a - q*b;
-    q -= ((r != 0) & ((r ^ b) < 0));
-    return q;
+    result = __Pyx_CyFunction_CallMethod(func, self, arg, kw);
+    return result;
 }
-
-/* ImportFrom */
-static PyObject* __Pyx_ImportFrom(PyObject* module, PyObject* name) {
-    PyObject* value = __Pyx_PyObject_GetAttrStr(module, name);
-    if (unlikely(!value) && PyErr_ExceptionMatches(PyExc_AttributeError)) {
-        PyErr_Format(PyExc_ImportError,
-        #if PY_MAJOR_VERSION < 3
-            "cannot import name %.230s", PyString_AS_STRING(name));
-        #else
-            "cannot import name %S", name);
-        #endif
+static PyObject *__Pyx_CyFunction_CallAsMethod(PyObject *func, PyObject *args, PyObject *kw) {
+    PyObject *result;
+    __pyx_CyFunctionObject *cyfunc = (__pyx_CyFunctionObject *) func;
+#if CYTHON_METH_FASTCALL
+     __pyx_vectorcallfunc vc = __Pyx_CyFunction_func_vectorcall(cyfunc);
+    if (vc) {
+#if CYTHON_ASSUME_SAFE_MACROS
+        return __Pyx_PyVectorcall_FastCallDict(func, vc, &PyTuple_GET_ITEM(args, 0), (size_t)PyTuple_GET_SIZE(args), kw);
+#else
+        (void) &__Pyx_PyVectorcall_FastCallDict;
+        return PyVectorcall_Call(func, args, kw);
+#endif
     }
-    return value;
+#endif
+    if ((cyfunc->flags & __Pyx_CYFUNCTION_CCLASS) && !(cyfunc->flags & __Pyx_CYFUNCTION_STATICMETHOD)) {
+        Py_ssize_t argc;
+        PyObject *new_args;
+        PyObject *self;
+#if CYTHON_ASSUME_SAFE_MACROS
+        argc = PyTuple_GET_SIZE(args);
+#else
+        argc = PyTuple_Size(args);
+        if (unlikely(!argc) < 0) return NULL;
+#endif
+        new_args = PyTuple_GetSlice(args, 1, argc);
+        if (unlikely(!new_args))
+            return NULL;
+        self = PyTuple_GetItem(args, 0);
+        if (unlikely(!self)) {
+            Py_DECREF(new_args);
+#if PY_MAJOR_VERSION > 2
+            PyErr_Format(PyExc_TypeError,
+                         "unbound method %.200S() needs an argument",
+                         cyfunc->func_qualname);
+#else
+            PyErr_SetString(PyExc_TypeError,
+                            "unbound method needs an argument");
+#endif
+            return NULL;
+        }
+        result = __Pyx_CyFunction_CallMethod(func, self, new_args, kw);
+        Py_DECREF(new_args);
+    } else {
+        result = __Pyx_CyFunction_Call(func, args, kw);
+    }
+    return result;
 }
-
-/* HasAttr */
-static CYTHON_INLINE int __Pyx_HasAttr(PyObject *o, PyObject *n) {
-    PyObject *r;
-    if (unlikely(!__Pyx_PyBaseString_Check(n))) {
-        PyErr_SetString(PyExc_TypeError,
-                        "hasattr(): attribute name must be string");
-        return -1;
+#if CYTHON_METH_FASTCALL
+static CYTHON_INLINE int __Pyx_CyFunction_Vectorcall_CheckArgs(__pyx_CyFunctionObject *cyfunc, Py_ssize_t nargs, PyObject *kwnames)
+{
+    int ret = 0;
+    if ((cyfunc->flags & __Pyx_CYFUNCTION_CCLASS) && !(cyfunc->flags & __Pyx_CYFUNCTION_STATICMETHOD)) {
+        if (unlikely(nargs < 1)) {
+            PyErr_Format(PyExc_TypeError, "%.200s() needs an argument",
+                         ((PyCFunctionObject*)cyfunc)->m_ml->ml_name);
+            return -1;
+        }
+        ret = 1;
     }
-    r = __Pyx_GetAttr(o, n);
-    if (unlikely(!r)) {
-        PyErr_Clear();
-        return 0;
-    } else {
-        Py_DECREF(r);
-        return 1;
+    if (unlikely(kwnames) && unlikely(PyTuple_GET_SIZE(kwnames))) {
+        PyErr_Format(PyExc_TypeError,
+                     "%.200s() takes no keyword arguments", ((PyCFunctionObject*)cyfunc)->m_ml->ml_name);
+        return -1;
     }
+    return ret;
 }
-
-/* PyObject_GenericGetAttrNoDict */
-#if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000
-static PyObject *__Pyx_RaiseGenericGetAttributeError(PyTypeObject *tp, PyObject *attr_name) {
-    PyErr_Format(PyExc_AttributeError,
-#if PY_MAJOR_VERSION >= 3
-                 "'%.50s' object has no attribute '%U'",
-                 tp->tp_name, attr_name);
+static PyObject * __Pyx_CyFunction_Vectorcall_NOARGS(PyObject *func, PyObject *const *args, size_t nargsf, PyObject *kwnames)
+{
+    __pyx_CyFunctionObject *cyfunc = (__pyx_CyFunctionObject *)func;
+    PyMethodDef* def = ((PyCFunctionObject*)cyfunc)->m_ml;
+#if CYTHON_BACKPORT_VECTORCALL
+    Py_ssize_t nargs = (Py_ssize_t)nargsf;
 #else
-                 "'%.50s' object has no attribute '%.400s'",
-                 tp->tp_name, PyString_AS_STRING(attr_name));
+    Py_ssize_t nargs = PyVectorcall_NARGS(nargsf);
 #endif
-    return NULL;
-}
-static CYTHON_INLINE PyObject* __Pyx_PyObject_GenericGetAttrNoDict(PyObject* obj, PyObject* attr_name) {
-    PyObject *descr;
-    PyTypeObject *tp = Py_TYPE(obj);
-    if (unlikely(!PyString_Check(attr_name))) {
-        return PyObject_GenericGetAttr(obj, attr_name);
-    }
-    assert(!tp->tp_dictoffset);
-    descr = _PyType_Lookup(tp, attr_name);
-    if (unlikely(!descr)) {
-        return __Pyx_RaiseGenericGetAttributeError(tp, attr_name);
+    PyObject *self;
+    switch (__Pyx_CyFunction_Vectorcall_CheckArgs(cyfunc, nargs, kwnames)) {
+    case 1:
+        self = args[0];
+        args += 1;
+        nargs -= 1;
+        break;
+    case 0:
+        self = ((PyCFunctionObject*)cyfunc)->m_self;
+        break;
+    default:
+        return NULL;
     }
-    Py_INCREF(descr);
-    #if PY_MAJOR_VERSION < 3
-    if (likely(PyType_HasFeature(Py_TYPE(descr), Py_TPFLAGS_HAVE_CLASS)))
-    #endif
-    {
-        descrgetfunc f = Py_TYPE(descr)->tp_descr_get;
-        if (unlikely(f)) {
-            PyObject *res = f(descr, obj, (PyObject *)tp);
-            Py_DECREF(descr);
-            return res;
-        }
+    if (unlikely(nargs != 0)) {
+        PyErr_Format(PyExc_TypeError,
+            "%.200s() takes no arguments (%" CYTHON_FORMAT_SSIZE_T "d given)",
+            def->ml_name, nargs);
+        return NULL;
     }
-    return descr;
+    return def->ml_meth(self, NULL);
 }
+static PyObject * __Pyx_CyFunction_Vectorcall_O(PyObject *func, PyObject *const *args, size_t nargsf, PyObject *kwnames)
+{
+    __pyx_CyFunctionObject *cyfunc = (__pyx_CyFunctionObject *)func;
+    PyMethodDef* def = ((PyCFunctionObject*)cyfunc)->m_ml;
+#if CYTHON_BACKPORT_VECTORCALL
+    Py_ssize_t nargs = (Py_ssize_t)nargsf;
+#else
+    Py_ssize_t nargs = PyVectorcall_NARGS(nargsf);
 #endif
-
-/* PyObject_GenericGetAttr */
-#if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000
-static PyObject* __Pyx_PyObject_GenericGetAttr(PyObject* obj, PyObject* attr_name) {
-    if (unlikely(Py_TYPE(obj)->tp_dictoffset)) {
-        return PyObject_GenericGetAttr(obj, attr_name);
+    PyObject *self;
+    switch (__Pyx_CyFunction_Vectorcall_CheckArgs(cyfunc, nargs, kwnames)) {
+    case 1:
+        self = args[0];
+        args += 1;
+        nargs -= 1;
+        break;
+    case 0:
+        self = ((PyCFunctionObject*)cyfunc)->m_self;
+        break;
+    default:
+        return NULL;
     }
-    return __Pyx_PyObject_GenericGetAttrNoDict(obj, attr_name);
+    if (unlikely(nargs != 1)) {
+        PyErr_Format(PyExc_TypeError,
+            "%.200s() takes exactly one argument (%" CYTHON_FORMAT_SSIZE_T "d given)",
+            def->ml_name, nargs);
+        return NULL;
+    }
+    return def->ml_meth(self, args[0]);
 }
-#endif
-
-/* SetVTable */
-static int __Pyx_SetVtable(PyObject *dict, void *vtable) {
-#if PY_VERSION_HEX >= 0x02070000
-    PyObject *ob = PyCapsule_New(vtable, 0, 0);
+static PyObject * __Pyx_CyFunction_Vectorcall_FASTCALL_KEYWORDS(PyObject *func, PyObject *const *args, size_t nargsf, PyObject *kwnames)
+{
+    __pyx_CyFunctionObject *cyfunc = (__pyx_CyFunctionObject *)func;
+    PyMethodDef* def = ((PyCFunctionObject*)cyfunc)->m_ml;
+#if CYTHON_BACKPORT_VECTORCALL
+    Py_ssize_t nargs = (Py_ssize_t)nargsf;
 #else
-    PyObject *ob = PyCObject_FromVoidPtr(vtable, 0);
-#endif
-    if (!ob)
-        goto bad;
-    if (PyDict_SetItem(dict, __pyx_n_s_pyx_vtable, ob) < 0)
-        goto bad;
-    Py_DECREF(ob);
-    return 0;
-bad:
-    Py_XDECREF(ob);
-    return -1;
-}
-
-/* PyObjectGetAttrStrNoError */
-static void __Pyx_PyObject_GetAttrStr_ClearAttributeError(void) {
-    __Pyx_PyThreadState_declare
-    __Pyx_PyThreadState_assign
-    if (likely(__Pyx_PyErr_ExceptionMatches(PyExc_AttributeError)))
-        __Pyx_PyErr_Clear();
-}
-static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStrNoError(PyObject* obj, PyObject* attr_name) {
-    PyObject *result;
-#if CYTHON_COMPILING_IN_CPYTHON && CYTHON_USE_TYPE_SLOTS && PY_VERSION_HEX >= 0x030700B1
-    PyTypeObject* tp = Py_TYPE(obj);
-    if (likely(tp->tp_getattro == PyObject_GenericGetAttr)) {
-        return _PyObject_GenericGetAttrWithDict(obj, attr_name, NULL, 1);
-    }
+    Py_ssize_t nargs = PyVectorcall_NARGS(nargsf);
 #endif
-    result = __Pyx_PyObject_GetAttrStr(obj, attr_name);
-    if (unlikely(!result)) {
-        __Pyx_PyObject_GetAttrStr_ClearAttributeError();
+    PyObject *self;
+    switch (__Pyx_CyFunction_Vectorcall_CheckArgs(cyfunc, nargs, NULL)) {
+    case 1:
+        self = args[0];
+        args += 1;
+        nargs -= 1;
+        break;
+    case 0:
+        self = ((PyCFunctionObject*)cyfunc)->m_self;
+        break;
+    default:
+        return NULL;
     }
-    return result;
+    return ((_PyCFunctionFastWithKeywords)(void(*)(void))def->ml_meth)(self, args, nargs, kwnames);
 }
-
-/* SetupReduce */
-static int __Pyx_setup_reduce_is_named(PyObject* meth, PyObject* name) {
-  int ret;
-  PyObject *name_attr;
-  name_attr = __Pyx_PyObject_GetAttrStr(meth, __pyx_n_s_name_2);
-  if (likely(name_attr)) {
-      ret = PyObject_RichCompareBool(name_attr, name, Py_EQ);
-  } else {
-      ret = -1;
-  }
-  if (unlikely(ret < 0)) {
-      PyErr_Clear();
-      ret = 0;
-  }
-  Py_XDECREF(name_attr);
-  return ret;
+static PyObject * __Pyx_CyFunction_Vectorcall_FASTCALL_KEYWORDS_METHOD(PyObject *func, PyObject *const *args, size_t nargsf, PyObject *kwnames)
+{
+    __pyx_CyFunctionObject *cyfunc = (__pyx_CyFunctionObject *)func;
+    PyMethodDef* def = ((PyCFunctionObject*)cyfunc)->m_ml;
+    PyTypeObject *cls = (PyTypeObject *) __Pyx_CyFunction_GetClassObj(cyfunc);
+#if CYTHON_BACKPORT_VECTORCALL
+    Py_ssize_t nargs = (Py_ssize_t)nargsf;
+#else
+    Py_ssize_t nargs = PyVectorcall_NARGS(nargsf);
+#endif
+    PyObject *self;
+    switch (__Pyx_CyFunction_Vectorcall_CheckArgs(cyfunc, nargs, NULL)) {
+    case 1:
+        self = args[0];
+        args += 1;
+        nargs -= 1;
+        break;
+    case 0:
+        self = ((PyCFunctionObject*)cyfunc)->m_self;
+        break;
+    default:
+        return NULL;
+    }
+    return ((__Pyx_PyCMethod)(void(*)(void))def->ml_meth)(self, cls, args, (size_t)nargs, kwnames);
 }
-static int __Pyx_setup_reduce(PyObject* type_obj) {
-    int ret = 0;
-    PyObject *object_reduce = NULL;
-    PyObject *object_reduce_ex = NULL;
-    PyObject *reduce = NULL;
-    PyObject *reduce_ex = NULL;
-    PyObject *reduce_cython = NULL;
-    PyObject *setstate = NULL;
-    PyObject *setstate_cython = NULL;
-#if CYTHON_USE_PYTYPE_LOOKUP
-    if (_PyType_Lookup((PyTypeObject*)type_obj, __pyx_n_s_getstate)) goto __PYX_GOOD;
+#endif
+#if CYTHON_USE_TYPE_SPECS
+static PyType_Slot __pyx_CyFunctionType_slots[] = {
+    {Py_tp_dealloc, (void *)__Pyx_CyFunction_dealloc},
+    {Py_tp_repr, (void *)__Pyx_CyFunction_repr},
+    {Py_tp_call, (void *)__Pyx_CyFunction_CallAsMethod},
+    {Py_tp_traverse, (void *)__Pyx_CyFunction_traverse},
+    {Py_tp_clear, (void *)__Pyx_CyFunction_clear},
+    {Py_tp_methods, (void *)__pyx_CyFunction_methods},
+    {Py_tp_members, (void *)__pyx_CyFunction_members},
+    {Py_tp_getset, (void *)__pyx_CyFunction_getsets},
+    {Py_tp_descr_get, (void *)__Pyx_PyMethod_New},
+    {0, 0},
+};
+static PyType_Spec __pyx_CyFunctionType_spec = {
+    __PYX_TYPE_MODULE_PREFIX "cython_function_or_method",
+    sizeof(__pyx_CyFunctionObject),
+    0,
+#ifdef Py_TPFLAGS_METHOD_DESCRIPTOR
+    Py_TPFLAGS_METHOD_DESCRIPTOR |
+#endif
+#if (defined(_Py_TPFLAGS_HAVE_VECTORCALL) && CYTHON_METH_FASTCALL)
+    _Py_TPFLAGS_HAVE_VECTORCALL |
+#endif
+    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC | Py_TPFLAGS_BASETYPE,
+    __pyx_CyFunctionType_slots
+};
+#else
+static PyTypeObject __pyx_CyFunctionType_type = {
+    PyVarObject_HEAD_INIT(0, 0)
+    __PYX_TYPE_MODULE_PREFIX "cython_function_or_method",
+    sizeof(__pyx_CyFunctionObject),
+    0,
+    (destructor) __Pyx_CyFunction_dealloc,
+#if !CYTHON_METH_FASTCALL
+    0,
+#elif CYTHON_BACKPORT_VECTORCALL
+    (printfunc)offsetof(__pyx_CyFunctionObject, func_vectorcall),
 #else
-    if (PyObject_HasAttr(type_obj, __pyx_n_s_getstate)) goto __PYX_GOOD;
+    offsetof(PyCFunctionObject, vectorcall),
 #endif
-#if CYTHON_USE_PYTYPE_LOOKUP
-    object_reduce_ex = _PyType_Lookup(&PyBaseObject_Type, __pyx_n_s_reduce_ex); if (!object_reduce_ex) goto __PYX_BAD;
+    0,
+    0,
+#if PY_MAJOR_VERSION < 3
+    0,
 #else
-    object_reduce_ex = __Pyx_PyObject_GetAttrStr((PyObject*)&PyBaseObject_Type, __pyx_n_s_reduce_ex); if (!object_reduce_ex) goto __PYX_BAD;
+    0,
 #endif
-    reduce_ex = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce_ex); if (unlikely(!reduce_ex)) goto __PYX_BAD;
-    if (reduce_ex == object_reduce_ex) {
-#if CYTHON_USE_PYTYPE_LOOKUP
-        object_reduce = _PyType_Lookup(&PyBaseObject_Type, __pyx_n_s_reduce); if (!object_reduce) goto __PYX_BAD;
+    (reprfunc) __Pyx_CyFunction_repr,
+    0,
+    0,
+    0,
+    0,
+    __Pyx_CyFunction_CallAsMethod,
+    0,
+    0,
+    0,
+    0,
+#ifdef Py_TPFLAGS_METHOD_DESCRIPTOR
+    Py_TPFLAGS_METHOD_DESCRIPTOR |
+#endif
+#if defined(_Py_TPFLAGS_HAVE_VECTORCALL) && CYTHON_METH_FASTCALL
+    _Py_TPFLAGS_HAVE_VECTORCALL |
+#endif
+    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC | Py_TPFLAGS_BASETYPE,
+    0,
+    (traverseproc) __Pyx_CyFunction_traverse,
+    (inquiry) __Pyx_CyFunction_clear,
+    0,
+#if PY_VERSION_HEX < 0x030500A0
+    offsetof(__pyx_CyFunctionObject, func_weakreflist),
 #else
-        object_reduce = __Pyx_PyObject_GetAttrStr((PyObject*)&PyBaseObject_Type, __pyx_n_s_reduce); if (!object_reduce) goto __PYX_BAD;
+    offsetof(PyCFunctionObject, m_weakreflist),
 #endif
-        reduce = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce); if (unlikely(!reduce)) goto __PYX_BAD;
-        if (reduce == object_reduce || __Pyx_setup_reduce_is_named(reduce, __pyx_n_s_reduce_cython)) {
-            reduce_cython = __Pyx_PyObject_GetAttrStrNoError(type_obj, __pyx_n_s_reduce_cython);
-            if (likely(reduce_cython)) {
-                ret = PyDict_SetItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_reduce, reduce_cython); if (unlikely(ret < 0)) goto __PYX_BAD;
-                ret = PyDict_DelItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_reduce_cython); if (unlikely(ret < 0)) goto __PYX_BAD;
-            } else if (reduce == object_reduce || PyErr_Occurred()) {
-                goto __PYX_BAD;
-            }
-            setstate = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_setstate);
-            if (!setstate) PyErr_Clear();
-            if (!setstate || __Pyx_setup_reduce_is_named(setstate, __pyx_n_s_setstate_cython)) {
-                setstate_cython = __Pyx_PyObject_GetAttrStrNoError(type_obj, __pyx_n_s_setstate_cython);
-                if (likely(setstate_cython)) {
-                    ret = PyDict_SetItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_setstate, setstate_cython); if (unlikely(ret < 0)) goto __PYX_BAD;
-                    ret = PyDict_DelItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_setstate_cython); if (unlikely(ret < 0)) goto __PYX_BAD;
-                } else if (!setstate || PyErr_Occurred()) {
-                    goto __PYX_BAD;
-                }
-            }
-            PyType_Modified((PyTypeObject*)type_obj);
-        }
-    }
-    goto __PYX_GOOD;
-__PYX_BAD:
-    if (!PyErr_Occurred())
-        PyErr_Format(PyExc_RuntimeError, "Unable to initialize pickling for %s", ((PyTypeObject*)type_obj)->tp_name);
-    ret = -1;
-__PYX_GOOD:
-#if !CYTHON_USE_PYTYPE_LOOKUP
-    Py_XDECREF(object_reduce);
-    Py_XDECREF(object_reduce_ex);
+    0,
+    0,
+    __pyx_CyFunction_methods,
+    __pyx_CyFunction_members,
+    __pyx_CyFunction_getsets,
+    0,
+    0,
+    __Pyx_PyMethod_New,
+    0,
+    offsetof(__pyx_CyFunctionObject, func_dict),
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+#if PY_VERSION_HEX >= 0x030400a1
+    0,
 #endif
-    Py_XDECREF(reduce);
-    Py_XDECREF(reduce_ex);
-    Py_XDECREF(reduce_cython);
-    Py_XDECREF(setstate);
-    Py_XDECREF(setstate_cython);
-    return ret;
+#if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
+    0,
+#endif
+#if __PYX_NEED_TP_PRINT_SLOT
+    0,
+#endif
+#if PY_VERSION_HEX >= 0x030C0000
+    0,
+#endif
+#if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000 && PY_VERSION_HEX < 0x030a0000
+    0,
+#endif
+};
+#endif
+static int __pyx_CyFunction_init(PyObject *module) {
+#if CYTHON_USE_TYPE_SPECS
+    __pyx_CyFunctionType = __Pyx_FetchCommonTypeFromSpec(module, &__pyx_CyFunctionType_spec, NULL);
+#else
+    CYTHON_UNUSED_VAR(module);
+    __pyx_CyFunctionType = __Pyx_FetchCommonType(&__pyx_CyFunctionType_type);
+#endif
+    if (unlikely(__pyx_CyFunctionType == NULL)) {
+        return -1;
+    }
+    return 0;
+}
+static CYTHON_INLINE void *__Pyx_CyFunction_InitDefaults(PyObject *func, size_t size, int pyobjects) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->defaults = PyObject_Malloc(size);
+    if (unlikely(!m->defaults))
+        return PyErr_NoMemory();
+    memset(m->defaults, 0, size);
+    m->defaults_pyobjects = pyobjects;
+    m->defaults_size = size;
+    return m->defaults;
+}
+static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsTuple(PyObject *func, PyObject *tuple) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->defaults_tuple = tuple;
+    Py_INCREF(tuple);
+}
+static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsKwDict(PyObject *func, PyObject *dict) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->defaults_kwdict = dict;
+    Py_INCREF(dict);
+}
+static CYTHON_INLINE void __Pyx_CyFunction_SetAnnotationsDict(PyObject *func, PyObject *dict) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->func_annotations = dict;
+    Py_INCREF(dict);
+}
+
+/* CythonFunction */
+static PyObject *__Pyx_CyFunction_New(PyMethodDef *ml, int flags, PyObject* qualname,
+                                      PyObject *closure, PyObject *module, PyObject* globals, PyObject* code) {
+    PyObject *op = __Pyx_CyFunction_Init(
+        PyObject_GC_New(__pyx_CyFunctionObject, __pyx_CyFunctionType),
+        ml, flags, qualname, closure, module, globals, code
+    );
+    if (likely(op)) {
+        PyObject_GC_Track(op);
+    }
+    return op;
 }
 
 /* CLineInTraceback */
 #ifndef CYTHON_CLINE_IN_TRACEBACK
-static int __Pyx_CLineForTraceback(CYTHON_NCP_UNUSED PyThreadState *tstate, int c_line) {
+static int __Pyx_CLineForTraceback(PyThreadState *tstate, int c_line) {
     PyObject *use_cline;
     PyObject *ptype, *pvalue, *ptraceback;
 #if CYTHON_COMPILING_IN_CPYTHON
     PyObject **cython_runtime_dict;
 #endif
+    CYTHON_MAYBE_UNUSED_VAR(tstate);
     if (unlikely(!__pyx_cython_runtime)) {
         return c_line;
     }
@@ -19524,7 +24891,7 @@ static int __Pyx_CLineForTraceback(CYTHON_NCP_UNUSED PyThreadState *tstate, int
     } else
 #endif
     {
-      PyObject *use_cline_obj = __Pyx_PyObject_GetAttrStr(__pyx_cython_runtime, __pyx_n_s_cline_in_traceback);
+      PyObject *use_cline_obj = __Pyx_PyObject_GetAttrStrNoError(__pyx_cython_runtime, __pyx_n_s_cline_in_traceback);
       if (use_cline_obj) {
         use_cline = PyObject_Not(use_cline_obj) ? Py_False : Py_True;
         Py_DECREF(use_cline_obj);
@@ -19546,6 +24913,7 @@ static int __Pyx_CLineForTraceback(CYTHON_NCP_UNUSED PyThreadState *tstate, int
 #endif
 
 /* CodeObjectCache */
+#if !CYTHON_COMPILING_IN_LIMITED_API
 static int __pyx_bisect_code_objects(__Pyx_CodeObjectCacheEntry* entries, int count, int code_line) {
     int start = 0, mid = 0, end = count - 1;
     if (end >= 0 && code_line > entries[end].code_line) {
@@ -19624,11 +24992,101 @@ static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object) {
     __pyx_code_cache.count++;
     Py_INCREF(code_object);
 }
+#endif
 
 /* AddTraceback */
 #include "compile.h"
 #include "frameobject.h"
 #include "traceback.h"
+#if PY_VERSION_HEX >= 0x030b00a6 && !CYTHON_COMPILING_IN_LIMITED_API
+  #ifndef Py_BUILD_CORE
+    #define Py_BUILD_CORE 1
+  #endif
+  #include "internal/pycore_frame.h"
+#endif
+#if CYTHON_COMPILING_IN_LIMITED_API
+static PyObject *__Pyx_PyCode_Replace_For_AddTraceback(PyObject *code, PyObject *scratch_dict,
+                                                       PyObject *firstlineno, PyObject *name) {
+    PyObject *replace = NULL;
+    if (unlikely(PyDict_SetItemString(scratch_dict, "co_firstlineno", firstlineno))) return NULL;
+    if (unlikely(PyDict_SetItemString(scratch_dict, "co_name", name))) return NULL;
+    replace = PyObject_GetAttrString(code, "replace");
+    if (likely(replace)) {
+        PyObject *result;
+        result = PyObject_Call(replace, __pyx_empty_tuple, scratch_dict);
+        Py_DECREF(replace);
+        return result;
+    }
+    PyErr_Clear();
+    #if __PYX_LIMITED_VERSION_HEX < 0x030780000
+    {
+        PyObject *compiled = NULL, *result = NULL;
+        if (unlikely(PyDict_SetItemString(scratch_dict, "code", code))) return NULL;
+        if (unlikely(PyDict_SetItemString(scratch_dict, "type", (PyObject*)(&PyType_Type)))) return NULL;
+        compiled = Py_CompileString(
+            "out = type(code)(\n"
+            "  code.co_argcount, code.co_kwonlyargcount, code.co_nlocals, code.co_stacksize,\n"
+            "  code.co_flags, code.co_code, code.co_consts, code.co_names,\n"
+            "  code.co_varnames, code.co_filename, co_name, co_firstlineno,\n"
+            "  code.co_lnotab)\n", "<dummy>", Py_file_input);
+        if (!compiled) return NULL;
+        result = PyEval_EvalCode(compiled, scratch_dict, scratch_dict);
+        Py_DECREF(compiled);
+        if (!result) PyErr_Print();
+        Py_DECREF(result);
+        result = PyDict_GetItemString(scratch_dict, "out");
+        if (result) Py_INCREF(result);
+        return result;
+    }
+    #else
+    return NULL;
+    #endif
+}
+static void __Pyx_AddTraceback(const char *funcname, int c_line,
+                               int py_line, const char *filename) {
+    PyObject *code_object = NULL, *py_py_line = NULL, *py_funcname = NULL, *dict = NULL;
+    PyObject *replace = NULL, *getframe = NULL, *frame = NULL;
+    PyObject *exc_type, *exc_value, *exc_traceback;
+    int success = 0;
+    if (c_line) {
+        (void) __pyx_cfilenm;
+        (void) __Pyx_CLineForTraceback(__Pyx_PyThreadState_Current, c_line);
+    }
+    PyErr_Fetch(&exc_type, &exc_value, &exc_traceback);
+    code_object = Py_CompileString("_getframe()", filename, Py_eval_input);
+    if (unlikely(!code_object)) goto bad;
+    py_py_line = PyLong_FromLong(py_line);
+    if (unlikely(!py_py_line)) goto bad;
+    py_funcname = PyUnicode_FromString(funcname);
+    if (unlikely(!py_funcname)) goto bad;
+    dict = PyDict_New();
+    if (unlikely(!dict)) goto bad;
+    {
+        PyObject *old_code_object = code_object;
+        code_object = __Pyx_PyCode_Replace_For_AddTraceback(code_object, dict, py_py_line, py_funcname);
+        Py_DECREF(old_code_object);
+    }
+    if (unlikely(!code_object)) goto bad;
+    getframe = PySys_GetObject("_getframe");
+    if (unlikely(!getframe)) goto bad;
+    if (unlikely(PyDict_SetItemString(dict, "_getframe", getframe))) goto bad;
+    frame = PyEval_EvalCode(code_object, dict, dict);
+    if (unlikely(!frame) || frame == Py_None) goto bad;
+    success = 1;
+  bad:
+    PyErr_Restore(exc_type, exc_value, exc_traceback);
+    Py_XDECREF(code_object);
+    Py_XDECREF(py_py_line);
+    Py_XDECREF(py_funcname);
+    Py_XDECREF(dict);
+    Py_XDECREF(replace);
+    if (success) {
+        PyTraceBack_Here(
+            (struct _frame*)frame);
+    }
+    Py_XDECREF(frame);
+}
+#else
 static PyCodeObject* __Pyx_CreateCodeObjectForTraceback(
             const char *funcname, int c_line,
             int py_line, const char *filename) {
@@ -19663,6 +25121,7 @@ static PyCodeObject* __Pyx_CreateCodeObjectForTraceback(
         0,
         0,
         0,
+        0,
         __pyx_empty_bytes, /*PyObject *code,*/
         __pyx_empty_tuple, /*PyObject *consts,*/
         __pyx_empty_tuple, /*PyObject *names,*/
@@ -19678,7 +25137,7 @@ static PyCodeObject* __Pyx_CreateCodeObjectForTraceback(
     #else
     py_code = PyCode_NewEmpty(filename, funcname, py_line);
     #endif
-    Py_XDECREF(py_funcname);  // XDECREF since it's only set on Py3 if cline
+    Py_XDECREF(py_funcname);
     return py_code;
 bad:
     Py_XDECREF(py_funcname);
@@ -19692,14 +25151,24 @@ static void __Pyx_AddTraceback(const char *funcname, int c_line,
     PyCodeObject *py_code = 0;
     PyFrameObject *py_frame = 0;
     PyThreadState *tstate = __Pyx_PyThreadState_Current;
+    PyObject *ptype, *pvalue, *ptraceback;
     if (c_line) {
         c_line = __Pyx_CLineForTraceback(tstate, c_line);
     }
     py_code = __pyx_find_code_object(c_line ? -c_line : py_line);
     if (!py_code) {
+        __Pyx_ErrFetchInState(tstate, &ptype, &pvalue, &ptraceback);
         py_code = __Pyx_CreateCodeObjectForTraceback(
             funcname, c_line, py_line, filename);
-        if (!py_code) goto bad;
+        if (!py_code) {
+            /* If the code object creation fails, then we should clear the
+               fetched exception references and propagate the new exception */
+            Py_XDECREF(ptype);
+            Py_XDECREF(pvalue);
+            Py_XDECREF(ptraceback);
+            goto bad;
+        }
+        __Pyx_ErrRestoreInState(tstate, ptype, pvalue, ptraceback);
         __pyx_insert_code_object(c_line ? -c_line : py_line, py_code);
     }
     py_frame = PyFrame_New(
@@ -19715,13 +25184,19 @@ bad:
     Py_XDECREF(py_code);
     Py_XDECREF(py_frame);
 }
+#endif
 
 #if PY_MAJOR_VERSION < 3
 static int __Pyx_GetBuffer(PyObject *obj, Py_buffer *view, int flags) {
+    __Pyx_TypeName obj_type_name;
     if (PyObject_CheckBuffer(obj)) return PyObject_GetBuffer(obj, view, flags);
         if (__Pyx_TypeCheck(obj, __pyx_array_type)) return __pyx_array_getbuffer(obj, view, flags);
         if (__Pyx_TypeCheck(obj, __pyx_memoryview_type)) return __pyx_memoryview_getbuffer(obj, view, flags);
-    PyErr_Format(PyExc_TypeError, "'%.200s' does not have the buffer interface", Py_TYPE(obj)->tp_name);
+    obj_type_name = __Pyx_PyType_GetName(Py_TYPE(obj));
+    PyErr_Format(PyExc_TypeError,
+                 "'" __Pyx_FMT_TYPENAME "' does not have the buffer interface",
+                 obj_type_name);
+    __Pyx_DECREF_TypeName(obj_type_name);
     return -1;
 }
 static void __Pyx_ReleaseBuffer(Py_buffer *view) {
@@ -19796,19 +25271,6 @@ __pyx_slices_overlap(__Pyx_memviewslice *slice1,
     return (start1 < end2) && (start2 < end1);
 }
 
-/* Capsule */
-static CYTHON_INLINE PyObject *
-__pyx_capsule_create(void *p, CYTHON_UNUSED const char *sig)
-{
-    PyObject *cobj;
-#if PY_VERSION_HEX >= 0x02070000
-    cobj = PyCapsule_New(p, sig, NULL);
-#else
-    cobj = PyCObject_FromVoidPtr(p, NULL);
-#endif
-    return cobj;
-}
-
 /* IsLittleEndian */
 static CYTHON_INLINE int __Pyx_Is_Little_Endian(void)
 {
@@ -19896,7 +25358,7 @@ static const char* __Pyx_BufFmt_DescribeTypeChar(char ch, int is_complex) {
     case 'P': return "a pointer";
     case 's': case 'p': return "a string";
     case 0: return "end";
-    default: return "unparseable format string";
+    default: return "unparsable format string";
   }
 }
 static size_t __Pyx_BufFmt_TypeCharToStandardSize(char ch, int is_complex) {
@@ -19946,7 +25408,8 @@ typedef struct { char c; void *x; } __Pyx_st_void_p;
 #ifdef HAVE_LONG_LONG
 typedef struct { char c; PY_LONG_LONG x; } __Pyx_st_longlong;
 #endif
-static size_t __Pyx_BufFmt_TypeCharToAlignment(char ch, CYTHON_UNUSED int is_complex) {
+static size_t __Pyx_BufFmt_TypeCharToAlignment(char ch, int is_complex) {
+  CYTHON_UNUSED_VAR(is_complex);
   switch (ch) {
     case '?': case 'c': case 'b': case 'B': case 's': case 'p': return 1;
     case 'h': case 'H': return sizeof(__Pyx_st_short) - sizeof(short);
@@ -19978,7 +25441,8 @@ typedef struct { void *x; char c; } __Pyx_pad_void_p;
 #ifdef HAVE_LONG_LONG
 typedef struct { PY_LONG_LONG x; char c; } __Pyx_pad_longlong;
 #endif
-static size_t __Pyx_BufFmt_TypeCharToPadding(char ch, CYTHON_UNUSED int is_complex) {
+static size_t __Pyx_BufFmt_TypeCharToPadding(char ch, int is_complex) {
+  CYTHON_UNUSED_VAR(is_complex);
   switch (ch) {
     case '?': case 'c': case 'b': case 'B': case 's': case 'p': return 1;
     case 'h': case 'H': return sizeof(__Pyx_pad_short) - sizeof(short);
@@ -20143,7 +25607,7 @@ static int __Pyx_BufFmt_ProcessTypeChunk(__Pyx_BufFmt_Context* ctx) {
   ctx->is_complex = 0;
   return 0;
 }
-static PyObject *
+static int
 __pyx_buffmt_parse_array(__Pyx_BufFmt_Context* ctx, const char** tsp)
 {
     const char *ts = *tsp;
@@ -20152,9 +25616,9 @@ __pyx_buffmt_parse_array(__Pyx_BufFmt_Context* ctx, const char** tsp)
     if (ctx->new_count != 1) {
         PyErr_SetString(PyExc_ValueError,
                         "Cannot handle repeated arrays in format string");
-        return NULL;
+        return -1;
     }
-    if (__Pyx_BufFmt_ProcessTypeChunk(ctx) == -1) return NULL;
+    if (__Pyx_BufFmt_ProcessTypeChunk(ctx) == -1) return -1;
     ndim = ctx->head->field->type->ndim;
     while (*ts && *ts != ')') {
         switch (*ts) {
@@ -20162,29 +25626,35 @@ __pyx_buffmt_parse_array(__Pyx_BufFmt_Context* ctx, const char** tsp)
             default:  break;
         }
         number = __Pyx_BufFmt_ExpectNumber(&ts);
-        if (number == -1) return NULL;
-        if (i < ndim && (size_t) number != ctx->head->field->type->arraysize[i])
-            return PyErr_Format(PyExc_ValueError,
+        if (number == -1) return -1;
+        if (i < ndim && (size_t) number != ctx->head->field->type->arraysize[i]) {
+            PyErr_Format(PyExc_ValueError,
                         "Expected a dimension of size %zu, got %d",
                         ctx->head->field->type->arraysize[i], number);
-        if (*ts != ',' && *ts != ')')
-            return PyErr_Format(PyExc_ValueError,
+            return -1;
+        }
+        if (*ts != ',' && *ts != ')') {
+            PyErr_Format(PyExc_ValueError,
                                 "Expected a comma in format string, got '%c'", *ts);
+            return -1;
+        }
         if (*ts == ',') ts++;
         i++;
     }
-    if (i != ndim)
-        return PyErr_Format(PyExc_ValueError, "Expected %d dimension(s), got %d",
+    if (i != ndim) {
+        PyErr_Format(PyExc_ValueError, "Expected %d dimension(s), got %d",
                             ctx->head->field->type->ndim, i);
+        return -1;
+    }
     if (!*ts) {
         PyErr_SetString(PyExc_ValueError,
                         "Unexpected end of format string, expected ')'");
-        return NULL;
+        return -1;
     }
     ctx->is_valid_array = 1;
     ctx->new_count = 1;
     *tsp = ++ts;
-    return Py_None;
+    return 0;
 }
 static const char* __Pyx_BufFmt_CheckString(__Pyx_BufFmt_Context* ctx, const char* ts) {
   int got_Z = 0;
@@ -20310,7 +25780,7 @@ static const char* __Pyx_BufFmt_CheckString(__Pyx_BufFmt_Context* ctx, const cha
         ++ts;
         break;
       case '(':
-        if (!__pyx_buffmt_parse_array(ctx, &ts)) return NULL;
+        if (__pyx_buffmt_parse_array(ctx, &ts) < 0) return NULL;
         break;
       default:
         {
@@ -20418,8 +25888,9 @@ fail:
     return 0;
 }
 static int
-__pyx_check_suboffsets(Py_buffer *buf, int dim, CYTHON_UNUSED int ndim, int spec)
+__pyx_check_suboffsets(Py_buffer *buf, int dim, int ndim, int spec)
 {
+    CYTHON_UNUSED_VAR(ndim);
     if (spec & __Pyx_MEMVIEW_DIRECT) {
         if (unlikely(buf->suboffsets && buf->suboffsets[dim] >= 0)) {
             PyErr_Format(PyExc_ValueError,
@@ -20545,7 +26016,7 @@ no_fail:
 }
 
 /* ObjectToMemviewSlice */
-  static CYTHON_INLINE __Pyx_memviewslice __Pyx_PyObject_to_MemoryviewSlice_dsdsds_int(PyObject *obj, int writable_flag) {
+  static CYTHON_INLINE __Pyx_memviewslice __Pyx_PyObject_to_MemoryviewSlice_dsdsds_bint(PyObject *obj, int writable_flag) {
     __Pyx_memviewslice result = { 0, 0, { 0 }, { 0 }, { 0 } };
     __Pyx_BufFmt_StackElem stack[1];
     int axes_specs[] = { (__Pyx_MEMVIEW_DIRECT | __Pyx_MEMVIEW_STRIDED), (__Pyx_MEMVIEW_DIRECT | __Pyx_MEMVIEW_STRIDED), (__Pyx_MEMVIEW_DIRECT | __Pyx_MEMVIEW_STRIDED) };
@@ -20556,7 +26027,7 @@ no_fail:
     }
     retcode = __Pyx_ValidateAndInit_memviewslice(axes_specs, 0,
                                                  PyBUF_RECORDS_RO | writable_flag, 3,
-                                                 &__Pyx_TypeInfo_int, stack,
+                                                 &__Pyx_TypeInfo_bint, stack,
                                                  &result, obj);
     if (unlikely(retcode == -1))
         goto __pyx_fail;
@@ -20669,37 +26140,172 @@ __pyx_memoryview_copy_new_contig(const __Pyx_memviewslice *from_mvs,
         if(unlikely(!temp_int)) {
             goto fail;
         } else {
-            PyTuple_SET_ITEM(shape_tuple, i, temp_int);
-            temp_int = NULL;
+            PyTuple_SET_ITEM(shape_tuple, i, temp_int);
+            temp_int = NULL;
+        }
+    }
+    array_obj = __pyx_array_new(shape_tuple, sizeof_dtype, buf->format, (char *) mode, NULL);
+    if (unlikely(!array_obj)) {
+        goto fail;
+    }
+    __Pyx_GOTREF(array_obj);
+    memview_obj = (struct __pyx_memoryview_obj *) __pyx_memoryview_new(
+                                    (PyObject *) array_obj, contig_flag,
+                                    dtype_is_object,
+                                    from_mvs->memview->typeinfo);
+    if (unlikely(!memview_obj))
+        goto fail;
+    if (unlikely(__Pyx_init_memviewslice(memview_obj, ndim, &new_mvs, 1) < 0))
+        goto fail;
+    if (unlikely(__pyx_memoryview_copy_contents(*from_mvs, new_mvs, ndim, ndim,
+                                                dtype_is_object) < 0))
+        goto fail;
+    goto no_fail;
+fail:
+    __Pyx_XDECREF(new_mvs.memview);
+    new_mvs.memview = NULL;
+    new_mvs.data = NULL;
+no_fail:
+    __Pyx_XDECREF(shape_tuple);
+    __Pyx_XDECREF(temp_int);
+    __Pyx_XDECREF(array_obj);
+    __Pyx_RefNannyFinishContext();
+    return new_mvs;
+}
+
+/* MemviewSliceInit */
+  static int
+__Pyx_init_memviewslice(struct __pyx_memoryview_obj *memview,
+                        int ndim,
+                        __Pyx_memviewslice *memviewslice,
+                        int memview_is_new_reference)
+{
+    __Pyx_RefNannyDeclarations
+    int i, retval=-1;
+    Py_buffer *buf = &memview->view;
+    __Pyx_RefNannySetupContext("init_memviewslice", 0);
+    if (unlikely(memviewslice->memview || memviewslice->data)) {
+        PyErr_SetString(PyExc_ValueError,
+            "memviewslice is already initialized!");
+        goto fail;
+    }
+    if (buf->strides) {
+        for (i = 0; i < ndim; i++) {
+            memviewslice->strides[i] = buf->strides[i];
+        }
+    } else {
+        Py_ssize_t stride = buf->itemsize;
+        for (i = ndim - 1; i >= 0; i--) {
+            memviewslice->strides[i] = stride;
+            stride *= buf->shape[i];
+        }
+    }
+    for (i = 0; i < ndim; i++) {
+        memviewslice->shape[i]   = buf->shape[i];
+        if (buf->suboffsets) {
+            memviewslice->suboffsets[i] = buf->suboffsets[i];
+        } else {
+            memviewslice->suboffsets[i] = -1;
+        }
+    }
+    memviewslice->memview = memview;
+    memviewslice->data = (char *)buf->buf;
+    if (__pyx_add_acquisition_count(memview) == 0 && !memview_is_new_reference) {
+        Py_INCREF(memview);
+    }
+    retval = 0;
+    goto no_fail;
+fail:
+    memviewslice->memview = 0;
+    memviewslice->data = 0;
+    retval = -1;
+no_fail:
+    __Pyx_RefNannyFinishContext();
+    return retval;
+}
+#ifndef Py_NO_RETURN
+#define Py_NO_RETURN
+#endif
+static void __pyx_fatalerror(const char *fmt, ...) Py_NO_RETURN {
+    va_list vargs;
+    char msg[200];
+#if PY_VERSION_HEX >= 0x030A0000 || defined(HAVE_STDARG_PROTOTYPES)
+    va_start(vargs, fmt);
+#else
+    va_start(vargs);
+#endif
+    vsnprintf(msg, 200, fmt, vargs);
+    va_end(vargs);
+    Py_FatalError(msg);
+}
+static CYTHON_INLINE int
+__pyx_add_acquisition_count_locked(__pyx_atomic_int_type *acquisition_count,
+                                   PyThread_type_lock lock)
+{
+    int result;
+    PyThread_acquire_lock(lock, 1);
+    result = (*acquisition_count)++;
+    PyThread_release_lock(lock);
+    return result;
+}
+static CYTHON_INLINE int
+__pyx_sub_acquisition_count_locked(__pyx_atomic_int_type *acquisition_count,
+                                   PyThread_type_lock lock)
+{
+    int result;
+    PyThread_acquire_lock(lock, 1);
+    result = (*acquisition_count)--;
+    PyThread_release_lock(lock);
+    return result;
+}
+static CYTHON_INLINE void
+__Pyx_INC_MEMVIEW(__Pyx_memviewslice *memslice, int have_gil, int lineno)
+{
+    __pyx_nonatomic_int_type old_acquisition_count;
+    struct __pyx_memoryview_obj *memview = memslice->memview;
+    if (unlikely(!memview || (PyObject *) memview == Py_None)) {
+        return;
+    }
+    old_acquisition_count = __pyx_add_acquisition_count(memview);
+    if (unlikely(old_acquisition_count <= 0)) {
+        if (likely(old_acquisition_count == 0)) {
+            if (have_gil) {
+                Py_INCREF((PyObject *) memview);
+            } else {
+                PyGILState_STATE _gilstate = PyGILState_Ensure();
+                Py_INCREF((PyObject *) memview);
+                PyGILState_Release(_gilstate);
+            }
+        } else {
+            __pyx_fatalerror("Acquisition count is %d (line %d)",
+                             old_acquisition_count+1, lineno);
         }
     }
-    array_obj = __pyx_array_new(shape_tuple, sizeof_dtype, buf->format, (char *) mode, NULL);
-    if (unlikely(!array_obj)) {
-        goto fail;
+}
+static CYTHON_INLINE void __Pyx_XCLEAR_MEMVIEW(__Pyx_memviewslice *memslice,
+                                             int have_gil, int lineno) {
+    __pyx_nonatomic_int_type old_acquisition_count;
+    struct __pyx_memoryview_obj *memview = memslice->memview;
+    if (unlikely(!memview || (PyObject *) memview == Py_None)) {
+        memslice->memview = NULL;
+        return;
+    }
+    old_acquisition_count = __pyx_sub_acquisition_count(memview);
+    memslice->data = NULL;
+    if (likely(old_acquisition_count > 1)) {
+        memslice->memview = NULL;
+    } else if (likely(old_acquisition_count == 1)) {
+        if (have_gil) {
+            Py_CLEAR(memslice->memview);
+        } else {
+            PyGILState_STATE _gilstate = PyGILState_Ensure();
+            Py_CLEAR(memslice->memview);
+            PyGILState_Release(_gilstate);
+        }
+    } else {
+        __pyx_fatalerror("Acquisition count is %d (line %d)",
+                         old_acquisition_count-1, lineno);
     }
-    __Pyx_GOTREF(array_obj);
-    memview_obj = (struct __pyx_memoryview_obj *) __pyx_memoryview_new(
-                                    (PyObject *) array_obj, contig_flag,
-                                    dtype_is_object,
-                                    from_mvs->memview->typeinfo);
-    if (unlikely(!memview_obj))
-        goto fail;
-    if (unlikely(__Pyx_init_memviewslice(memview_obj, ndim, &new_mvs, 1) < 0))
-        goto fail;
-    if (unlikely(__pyx_memoryview_copy_contents(*from_mvs, new_mvs, ndim, ndim,
-                                                dtype_is_object) < 0))
-        goto fail;
-    goto no_fail;
-fail:
-    __Pyx_XDECREF(new_mvs.memview);
-    new_mvs.memview = NULL;
-    new_mvs.data = NULL;
-no_fail:
-    __Pyx_XDECREF(shape_tuple);
-    __Pyx_XDECREF(temp_int);
-    __Pyx_XDECREF(array_obj);
-    __Pyx_RefNannyFinishContext();
-    return new_mvs;
 }
 
 /* CIntFromPy */
@@ -20715,7 +26321,7 @@ no_fail:
     const int is_unsigned = neg_one > const_zero;
 #if PY_MAJOR_VERSION < 3
     if (likely(PyInt_Check(x))) {
-        if (sizeof(int) < sizeof(long)) {
+        if ((sizeof(int) < sizeof(long))) {
             __PYX_VERIFY_RETURN_INT(int, long, PyInt_AS_LONG(x))
         } else {
             long val = PyInt_AS_LONG(x);
@@ -20729,40 +26335,45 @@ no_fail:
     if (likely(PyLong_Check(x))) {
         if (is_unsigned) {
 #if CYTHON_USE_PYLONG_INTERNALS
-            const digit* digits = ((PyLongObject*)x)->ob_digit;
-            switch (Py_SIZE(x)) {
-                case  0: return (int) 0;
-                case  1: __PYX_VERIFY_RETURN_INT(int, digit, digits[0])
-                case 2:
-                    if (8 * sizeof(int) > 1 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(int) >= 2 * PyLong_SHIFT) {
-                            return (int) (((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
+            if (unlikely(__Pyx_PyLong_IsNeg(x))) {
+                goto raise_neg_overflow;
+            } else if (__Pyx_PyLong_IsCompact(x)) {
+                __PYX_VERIFY_RETURN_INT(int, __Pyx_compact_upylong, __Pyx_PyLong_CompactValueUnsigned(x))
+            } else {
+                const digit* digits = __Pyx_PyLong_Digits(x);
+                assert(__Pyx_PyLong_DigitCount(x) > 1);
+                switch (__Pyx_PyLong_DigitCount(x)) {
+                    case 2:
+                        if ((8 * sizeof(int) > 1 * PyLong_SHIFT)) {
+                            if ((8 * sizeof(unsigned long) > 2 * PyLong_SHIFT)) {
+                                __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                            } else if ((8 * sizeof(int) >= 2 * PyLong_SHIFT)) {
+                                return (int) (((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
+                            }
                         }
-                    }
-                    break;
-                case 3:
-                    if (8 * sizeof(int) > 2 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(int) >= 3 * PyLong_SHIFT) {
-                            return (int) (((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
+                        break;
+                    case 3:
+                        if ((8 * sizeof(int) > 2 * PyLong_SHIFT)) {
+                            if ((8 * sizeof(unsigned long) > 3 * PyLong_SHIFT)) {
+                                __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                            } else if ((8 * sizeof(int) >= 3 * PyLong_SHIFT)) {
+                                return (int) (((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
+                            }
                         }
-                    }
-                    break;
-                case 4:
-                    if (8 * sizeof(int) > 3 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(int) >= 4 * PyLong_SHIFT) {
-                            return (int) (((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
+                        break;
+                    case 4:
+                        if ((8 * sizeof(int) > 3 * PyLong_SHIFT)) {
+                            if ((8 * sizeof(unsigned long) > 4 * PyLong_SHIFT)) {
+                                __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                            } else if ((8 * sizeof(int) >= 4 * PyLong_SHIFT)) {
+                                return (int) (((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
+                            }
                         }
-                    }
-                    break;
+                        break;
+                }
             }
 #endif
-#if CYTHON_COMPILING_IN_CPYTHON
+#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX < 0x030C00A7
             if (unlikely(Py_SIZE(x) < 0)) {
                 goto raise_neg_overflow;
             }
@@ -20775,109 +26386,181 @@ no_fail:
                     goto raise_neg_overflow;
             }
 #endif
-            if (sizeof(int) <= sizeof(unsigned long)) {
+            if ((sizeof(int) <= sizeof(unsigned long))) {
                 __PYX_VERIFY_RETURN_INT_EXC(int, unsigned long, PyLong_AsUnsignedLong(x))
 #ifdef HAVE_LONG_LONG
-            } else if (sizeof(int) <= sizeof(unsigned PY_LONG_LONG)) {
+            } else if ((sizeof(int) <= sizeof(unsigned PY_LONG_LONG))) {
                 __PYX_VERIFY_RETURN_INT_EXC(int, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
 #endif
             }
         } else {
 #if CYTHON_USE_PYLONG_INTERNALS
-            const digit* digits = ((PyLongObject*)x)->ob_digit;
-            switch (Py_SIZE(x)) {
-                case  0: return (int) 0;
-                case -1: __PYX_VERIFY_RETURN_INT(int, sdigit, (sdigit) (-(sdigit)digits[0]))
-                case  1: __PYX_VERIFY_RETURN_INT(int,  digit, +digits[0])
-                case -2:
-                    if (8 * sizeof(int) - 1 > 1 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) {
-                            return (int) (((int)-1)*(((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+            if (__Pyx_PyLong_IsCompact(x)) {
+                __PYX_VERIFY_RETURN_INT(int, __Pyx_compact_pylong, __Pyx_PyLong_CompactValue(x))
+            } else {
+                const digit* digits = __Pyx_PyLong_Digits(x);
+                assert(__Pyx_PyLong_DigitCount(x) > 1);
+                switch (__Pyx_PyLong_SignedDigitCount(x)) {
+                    case -2:
+                        if ((8 * sizeof(int) - 1 > 1 * PyLong_SHIFT)) {
+                            if ((8 * sizeof(unsigned long) > 2 * PyLong_SHIFT)) {
+                                __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                            } else if ((8 * sizeof(int) - 1 > 2 * PyLong_SHIFT)) {
+                                return (int) (((int)-1)*(((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                            }
                         }
-                    }
-                    break;
-                case 2:
-                    if (8 * sizeof(int) > 1 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) {
-                            return (int) ((((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                        break;
+                    case 2:
+                        if ((8 * sizeof(int) > 1 * PyLong_SHIFT)) {
+                            if ((8 * sizeof(unsigned long) > 2 * PyLong_SHIFT)) {
+                                __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                            } else if ((8 * sizeof(int) - 1 > 2 * PyLong_SHIFT)) {
+                                return (int) ((((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                            }
                         }
-                    }
-                    break;
-                case -3:
-                    if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) {
-                            return (int) (((int)-1)*(((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                        break;
+                    case -3:
+                        if ((8 * sizeof(int) - 1 > 2 * PyLong_SHIFT)) {
+                            if ((8 * sizeof(unsigned long) > 3 * PyLong_SHIFT)) {
+                                __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                            } else if ((8 * sizeof(int) - 1 > 3 * PyLong_SHIFT)) {
+                                return (int) (((int)-1)*(((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                            }
                         }
-                    }
-                    break;
-                case 3:
-                    if (8 * sizeof(int) > 2 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) {
-                            return (int) ((((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                        break;
+                    case 3:
+                        if ((8 * sizeof(int) > 2 * PyLong_SHIFT)) {
+                            if ((8 * sizeof(unsigned long) > 3 * PyLong_SHIFT)) {
+                                __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                            } else if ((8 * sizeof(int) - 1 > 3 * PyLong_SHIFT)) {
+                                return (int) ((((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                            }
                         }
-                    }
-                    break;
-                case -4:
-                    if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(int) - 1 > 4 * PyLong_SHIFT) {
-                            return (int) (((int)-1)*(((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                        break;
+                    case -4:
+                        if ((8 * sizeof(int) - 1 > 3 * PyLong_SHIFT)) {
+                            if ((8 * sizeof(unsigned long) > 4 * PyLong_SHIFT)) {
+                                __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                            } else if ((8 * sizeof(int) - 1 > 4 * PyLong_SHIFT)) {
+                                return (int) (((int)-1)*(((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                            }
                         }
-                    }
-                    break;
-                case 4:
-                    if (8 * sizeof(int) > 3 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(int) - 1 > 4 * PyLong_SHIFT) {
-                            return (int) ((((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                        break;
+                    case 4:
+                        if ((8 * sizeof(int) > 3 * PyLong_SHIFT)) {
+                            if ((8 * sizeof(unsigned long) > 4 * PyLong_SHIFT)) {
+                                __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                            } else if ((8 * sizeof(int) - 1 > 4 * PyLong_SHIFT)) {
+                                return (int) ((((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                            }
                         }
-                    }
-                    break;
+                        break;
+                }
             }
 #endif
-            if (sizeof(int) <= sizeof(long)) {
+            if ((sizeof(int) <= sizeof(long))) {
                 __PYX_VERIFY_RETURN_INT_EXC(int, long, PyLong_AsLong(x))
 #ifdef HAVE_LONG_LONG
-            } else if (sizeof(int) <= sizeof(PY_LONG_LONG)) {
+            } else if ((sizeof(int) <= sizeof(PY_LONG_LONG))) {
                 __PYX_VERIFY_RETURN_INT_EXC(int, PY_LONG_LONG, PyLong_AsLongLong(x))
 #endif
             }
         }
         {
-#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
-            PyErr_SetString(PyExc_RuntimeError,
-                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
-#else
             int val;
             PyObject *v = __Pyx_PyNumber_IntOrLong(x);
- #if PY_MAJOR_VERSION < 3
+#if PY_MAJOR_VERSION < 3
             if (likely(v) && !PyLong_Check(v)) {
                 PyObject *tmp = v;
                 v = PyNumber_Long(tmp);
                 Py_DECREF(tmp);
             }
- #endif
+#endif
             if (likely(v)) {
+                int ret = -1;
+#if PY_VERSION_HEX < 0x030d0000 && !(CYTHON_COMPILING_IN_PYPY || CYTHON_COMPILING_IN_LIMITED_API) || defined(_PyLong_AsByteArray)
                 int one = 1; int is_little = (int)*(unsigned char *)&one;
                 unsigned char *bytes = (unsigned char *)&val;
-                int ret = _PyLong_AsByteArray((PyLongObject *)v,
-                                              bytes, sizeof(val),
-                                              is_little, !is_unsigned);
+                ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                           bytes, sizeof(val),
+                                           is_little, !is_unsigned);
+#else
+                PyObject *stepval = NULL, *mask = NULL, *shift = NULL;
+                int bits, remaining_bits, is_negative = 0;
+                long idigit;
+                int chunk_size = (sizeof(long) < 8) ? 30 : 62;
+                if (unlikely(!PyLong_CheckExact(v))) {
+                    PyObject *tmp = v;
+                    v = PyNumber_Long(v);
+                    assert(PyLong_CheckExact(v));
+                    Py_DECREF(tmp);
+                    if (unlikely(!v)) return (int) -1;
+                }
+#if CYTHON_COMPILING_IN_LIMITED_API && PY_VERSION_HEX < 0x030B0000
+                if (Py_SIZE(x) == 0)
+                    return (int) 0;
+                is_negative = Py_SIZE(x) < 0;
+#else
+                {
+                    int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
+                    if (unlikely(result < 0))
+                        return (int) -1;
+                    is_negative = result == 1;
+                }
+#endif
+                if (is_unsigned && unlikely(is_negative)) {
+                    goto raise_neg_overflow;
+                } else if (is_negative) {
+                    stepval = PyNumber_Invert(v);
+                    if (unlikely(!stepval))
+                        return (int) -1;
+                } else {
+                    stepval = __Pyx_NewRef(v);
+                }
+                val = (int) 0;
+                mask = PyLong_FromLong((1L << chunk_size) - 1); if (unlikely(!mask)) goto done;
+                shift = PyLong_FromLong(chunk_size); if (unlikely(!shift)) goto done;
+                for (bits = 0; bits < (int) sizeof(int) * 8 - chunk_size; bits += chunk_size) {
+                    PyObject *tmp, *digit;
+                    digit = PyNumber_And(stepval, mask);
+                    if (unlikely(!digit)) goto done;
+                    idigit = PyLong_AsLong(digit);
+                    Py_DECREF(digit);
+                    if (unlikely(idigit < 0)) goto done;
+                    tmp = PyNumber_Rshift(stepval, shift);
+                    if (unlikely(!tmp)) goto done;
+                    Py_DECREF(stepval); stepval = tmp;
+                    val |= ((int) idigit) << bits;
+                    #if CYTHON_COMPILING_IN_LIMITED_API && PY_VERSION_HEX < 0x030B0000
+                    if (Py_SIZE(stepval) == 0)
+                        goto unpacking_done;
+                    #endif
+                }
+                idigit = PyLong_AsLong(stepval);
+                if (unlikely(idigit < 0)) goto done;
+                remaining_bits = ((int) sizeof(int) * 8) - bits - (is_unsigned ? 0 : 1);
+                if (unlikely(idigit >= (1L << remaining_bits)))
+                    goto raise_overflow;
+                val |= ((int) idigit) << bits;
+            #if CYTHON_COMPILING_IN_LIMITED_API && PY_VERSION_HEX < 0x030B0000
+            unpacking_done:
+            #endif
+                if (!is_unsigned) {
+                    if (unlikely(val & (((int) 1) << (sizeof(int) * 8 - 1))))
+                        goto raise_overflow;
+                    if (is_negative)
+                        val = ~val;
+                }
+                ret = 0;
+            done:
+                Py_XDECREF(shift);
+                Py_XDECREF(mask);
+                Py_XDECREF(stepval);
+#endif
                 Py_DECREF(v);
                 if (likely(!ret))
                     return val;
             }
-#endif
             return (int) -1;
         }
     } else {
@@ -20931,8 +26614,34 @@ raise_neg_overflow:
     {
         int one = 1; int little = (int)*(unsigned char *)&one;
         unsigned char *bytes = (unsigned char *)&value;
+#if !CYTHON_COMPILING_IN_LIMITED_API && PY_VERSION_HEX < 0x030d0000
         return _PyLong_FromByteArray(bytes, sizeof(int),
                                      little, !is_unsigned);
+#else
+        PyObject *from_bytes, *result = NULL;
+        PyObject *py_bytes = NULL, *arg_tuple = NULL, *kwds = NULL, *order_str = NULL;
+        from_bytes = PyObject_GetAttrString((PyObject*)&PyLong_Type, "from_bytes");
+        if (!from_bytes) return NULL;
+        py_bytes = PyBytes_FromStringAndSize((char*)bytes, sizeof(int));
+        if (!py_bytes) goto limited_bad;
+        order_str = PyUnicode_FromString(little ? "little" : "big");
+        if (!order_str) goto limited_bad;
+        arg_tuple = PyTuple_Pack(2, py_bytes, order_str);
+        if (!arg_tuple) goto limited_bad;
+        if (!is_unsigned) {
+            kwds = PyDict_New();
+            if (!kwds) goto limited_bad;
+            if (PyDict_SetItemString(kwds, "signed", __Pyx_NewRef(Py_True))) goto limited_bad;
+        }
+        result = PyObject_Call(from_bytes, arg_tuple, kwds);
+        limited_bad:
+        Py_XDECREF(kwds);
+        Py_XDECREF(arg_tuple);
+        Py_XDECREF(order_str);
+        Py_XDECREF(py_bytes);
+        Py_XDECREF(from_bytes);
+        return result;
+#endif
     }
 }
 
@@ -20969,8 +26678,34 @@ raise_neg_overflow:
     {
         int one = 1; int little = (int)*(unsigned char *)&one;
         unsigned char *bytes = (unsigned char *)&value;
+#if !CYTHON_COMPILING_IN_LIMITED_API && PY_VERSION_HEX < 0x030d0000
         return _PyLong_FromByteArray(bytes, sizeof(long),
                                      little, !is_unsigned);
+#else
+        PyObject *from_bytes, *result = NULL;
+        PyObject *py_bytes = NULL, *arg_tuple = NULL, *kwds = NULL, *order_str = NULL;
+        from_bytes = PyObject_GetAttrString((PyObject*)&PyLong_Type, "from_bytes");
+        if (!from_bytes) return NULL;
+        py_bytes = PyBytes_FromStringAndSize((char*)bytes, sizeof(long));
+        if (!py_bytes) goto limited_bad;
+        order_str = PyUnicode_FromString(little ? "little" : "big");
+        if (!order_str) goto limited_bad;
+        arg_tuple = PyTuple_Pack(2, py_bytes, order_str);
+        if (!arg_tuple) goto limited_bad;
+        if (!is_unsigned) {
+            kwds = PyDict_New();
+            if (!kwds) goto limited_bad;
+            if (PyDict_SetItemString(kwds, "signed", __Pyx_NewRef(Py_True))) goto limited_bad;
+        }
+        result = PyObject_Call(from_bytes, arg_tuple, kwds);
+        limited_bad:
+        Py_XDECREF(kwds);
+        Py_XDECREF(arg_tuple);
+        Py_XDECREF(order_str);
+        Py_XDECREF(py_bytes);
+        Py_XDECREF(from_bytes);
+        return result;
+#endif
     }
 }
 
@@ -20987,7 +26722,7 @@ raise_neg_overflow:
     const int is_unsigned = neg_one > const_zero;
 #if PY_MAJOR_VERSION < 3
     if (likely(PyInt_Check(x))) {
-        if (sizeof(long) < sizeof(long)) {
+        if ((sizeof(long) < sizeof(long))) {
             __PYX_VERIFY_RETURN_INT(long, long, PyInt_AS_LONG(x))
         } else {
             long val = PyInt_AS_LONG(x);
@@ -21001,40 +26736,45 @@ raise_neg_overflow:
     if (likely(PyLong_Check(x))) {
         if (is_unsigned) {
 #if CYTHON_USE_PYLONG_INTERNALS
-            const digit* digits = ((PyLongObject*)x)->ob_digit;
-            switch (Py_SIZE(x)) {
-                case  0: return (long) 0;
-                case  1: __PYX_VERIFY_RETURN_INT(long, digit, digits[0])
-                case 2:
-                    if (8 * sizeof(long) > 1 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(long) >= 2 * PyLong_SHIFT) {
-                            return (long) (((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
+            if (unlikely(__Pyx_PyLong_IsNeg(x))) {
+                goto raise_neg_overflow;
+            } else if (__Pyx_PyLong_IsCompact(x)) {
+                __PYX_VERIFY_RETURN_INT(long, __Pyx_compact_upylong, __Pyx_PyLong_CompactValueUnsigned(x))
+            } else {
+                const digit* digits = __Pyx_PyLong_Digits(x);
+                assert(__Pyx_PyLong_DigitCount(x) > 1);
+                switch (__Pyx_PyLong_DigitCount(x)) {
+                    case 2:
+                        if ((8 * sizeof(long) > 1 * PyLong_SHIFT)) {
+                            if ((8 * sizeof(unsigned long) > 2 * PyLong_SHIFT)) {
+                                __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                            } else if ((8 * sizeof(long) >= 2 * PyLong_SHIFT)) {
+                                return (long) (((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
+                            }
                         }
-                    }
-                    break;
-                case 3:
-                    if (8 * sizeof(long) > 2 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(long) >= 3 * PyLong_SHIFT) {
-                            return (long) (((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
+                        break;
+                    case 3:
+                        if ((8 * sizeof(long) > 2 * PyLong_SHIFT)) {
+                            if ((8 * sizeof(unsigned long) > 3 * PyLong_SHIFT)) {
+                                __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                            } else if ((8 * sizeof(long) >= 3 * PyLong_SHIFT)) {
+                                return (long) (((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
+                            }
                         }
-                    }
-                    break;
-                case 4:
-                    if (8 * sizeof(long) > 3 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(long) >= 4 * PyLong_SHIFT) {
-                            return (long) (((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
+                        break;
+                    case 4:
+                        if ((8 * sizeof(long) > 3 * PyLong_SHIFT)) {
+                            if ((8 * sizeof(unsigned long) > 4 * PyLong_SHIFT)) {
+                                __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                            } else if ((8 * sizeof(long) >= 4 * PyLong_SHIFT)) {
+                                return (long) (((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
+                            }
                         }
-                    }
-                    break;
+                        break;
+                }
             }
 #endif
-#if CYTHON_COMPILING_IN_CPYTHON
+#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX < 0x030C00A7
             if (unlikely(Py_SIZE(x) < 0)) {
                 goto raise_neg_overflow;
             }
@@ -21047,109 +26787,181 @@ raise_neg_overflow:
                     goto raise_neg_overflow;
             }
 #endif
-            if (sizeof(long) <= sizeof(unsigned long)) {
+            if ((sizeof(long) <= sizeof(unsigned long))) {
                 __PYX_VERIFY_RETURN_INT_EXC(long, unsigned long, PyLong_AsUnsignedLong(x))
 #ifdef HAVE_LONG_LONG
-            } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) {
+            } else if ((sizeof(long) <= sizeof(unsigned PY_LONG_LONG))) {
                 __PYX_VERIFY_RETURN_INT_EXC(long, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
 #endif
             }
         } else {
 #if CYTHON_USE_PYLONG_INTERNALS
-            const digit* digits = ((PyLongObject*)x)->ob_digit;
-            switch (Py_SIZE(x)) {
-                case  0: return (long) 0;
-                case -1: __PYX_VERIFY_RETURN_INT(long, sdigit, (sdigit) (-(sdigit)digits[0]))
-                case  1: __PYX_VERIFY_RETURN_INT(long,  digit, +digits[0])
-                case -2:
-                    if (8 * sizeof(long) - 1 > 1 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
-                            return (long) (((long)-1)*(((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+            if (__Pyx_PyLong_IsCompact(x)) {
+                __PYX_VERIFY_RETURN_INT(long, __Pyx_compact_pylong, __Pyx_PyLong_CompactValue(x))
+            } else {
+                const digit* digits = __Pyx_PyLong_Digits(x);
+                assert(__Pyx_PyLong_DigitCount(x) > 1);
+                switch (__Pyx_PyLong_SignedDigitCount(x)) {
+                    case -2:
+                        if ((8 * sizeof(long) - 1 > 1 * PyLong_SHIFT)) {
+                            if ((8 * sizeof(unsigned long) > 2 * PyLong_SHIFT)) {
+                                __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                            } else if ((8 * sizeof(long) - 1 > 2 * PyLong_SHIFT)) {
+                                return (long) (((long)-1)*(((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                            }
                         }
-                    }
-                    break;
-                case 2:
-                    if (8 * sizeof(long) > 1 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
-                            return (long) ((((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                        break;
+                    case 2:
+                        if ((8 * sizeof(long) > 1 * PyLong_SHIFT)) {
+                            if ((8 * sizeof(unsigned long) > 2 * PyLong_SHIFT)) {
+                                __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                            } else if ((8 * sizeof(long) - 1 > 2 * PyLong_SHIFT)) {
+                                return (long) ((((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                            }
                         }
-                    }
-                    break;
-                case -3:
-                    if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) {
-                            return (long) (((long)-1)*(((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                        break;
+                    case -3:
+                        if ((8 * sizeof(long) - 1 > 2 * PyLong_SHIFT)) {
+                            if ((8 * sizeof(unsigned long) > 3 * PyLong_SHIFT)) {
+                                __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                            } else if ((8 * sizeof(long) - 1 > 3 * PyLong_SHIFT)) {
+                                return (long) (((long)-1)*(((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                            }
                         }
-                    }
-                    break;
-                case 3:
-                    if (8 * sizeof(long) > 2 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) {
-                            return (long) ((((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                        break;
+                    case 3:
+                        if ((8 * sizeof(long) > 2 * PyLong_SHIFT)) {
+                            if ((8 * sizeof(unsigned long) > 3 * PyLong_SHIFT)) {
+                                __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                            } else if ((8 * sizeof(long) - 1 > 3 * PyLong_SHIFT)) {
+                                return (long) ((((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                            }
                         }
-                    }
-                    break;
-                case -4:
-                    if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(long) - 1 > 4 * PyLong_SHIFT) {
-                            return (long) (((long)-1)*(((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                        break;
+                    case -4:
+                        if ((8 * sizeof(long) - 1 > 3 * PyLong_SHIFT)) {
+                            if ((8 * sizeof(unsigned long) > 4 * PyLong_SHIFT)) {
+                                __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                            } else if ((8 * sizeof(long) - 1 > 4 * PyLong_SHIFT)) {
+                                return (long) (((long)-1)*(((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                            }
                         }
-                    }
-                    break;
-                case 4:
-                    if (8 * sizeof(long) > 3 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(long) - 1 > 4 * PyLong_SHIFT) {
-                            return (long) ((((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                        break;
+                    case 4:
+                        if ((8 * sizeof(long) > 3 * PyLong_SHIFT)) {
+                            if ((8 * sizeof(unsigned long) > 4 * PyLong_SHIFT)) {
+                                __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                            } else if ((8 * sizeof(long) - 1 > 4 * PyLong_SHIFT)) {
+                                return (long) ((((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                            }
                         }
-                    }
-                    break;
+                        break;
+                }
             }
 #endif
-            if (sizeof(long) <= sizeof(long)) {
+            if ((sizeof(long) <= sizeof(long))) {
                 __PYX_VERIFY_RETURN_INT_EXC(long, long, PyLong_AsLong(x))
 #ifdef HAVE_LONG_LONG
-            } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) {
+            } else if ((sizeof(long) <= sizeof(PY_LONG_LONG))) {
                 __PYX_VERIFY_RETURN_INT_EXC(long, PY_LONG_LONG, PyLong_AsLongLong(x))
 #endif
             }
         }
         {
-#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
-            PyErr_SetString(PyExc_RuntimeError,
-                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
-#else
             long val;
             PyObject *v = __Pyx_PyNumber_IntOrLong(x);
- #if PY_MAJOR_VERSION < 3
+#if PY_MAJOR_VERSION < 3
             if (likely(v) && !PyLong_Check(v)) {
                 PyObject *tmp = v;
                 v = PyNumber_Long(tmp);
                 Py_DECREF(tmp);
             }
- #endif
+#endif
             if (likely(v)) {
+                int ret = -1;
+#if PY_VERSION_HEX < 0x030d0000 && !(CYTHON_COMPILING_IN_PYPY || CYTHON_COMPILING_IN_LIMITED_API) || defined(_PyLong_AsByteArray)
                 int one = 1; int is_little = (int)*(unsigned char *)&one;
                 unsigned char *bytes = (unsigned char *)&val;
-                int ret = _PyLong_AsByteArray((PyLongObject *)v,
-                                              bytes, sizeof(val),
-                                              is_little, !is_unsigned);
+                ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                           bytes, sizeof(val),
+                                           is_little, !is_unsigned);
+#else
+                PyObject *stepval = NULL, *mask = NULL, *shift = NULL;
+                int bits, remaining_bits, is_negative = 0;
+                long idigit;
+                int chunk_size = (sizeof(long) < 8) ? 30 : 62;
+                if (unlikely(!PyLong_CheckExact(v))) {
+                    PyObject *tmp = v;
+                    v = PyNumber_Long(v);
+                    assert(PyLong_CheckExact(v));
+                    Py_DECREF(tmp);
+                    if (unlikely(!v)) return (long) -1;
+                }
+#if CYTHON_COMPILING_IN_LIMITED_API && PY_VERSION_HEX < 0x030B0000
+                if (Py_SIZE(x) == 0)
+                    return (long) 0;
+                is_negative = Py_SIZE(x) < 0;
+#else
+                {
+                    int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
+                    if (unlikely(result < 0))
+                        return (long) -1;
+                    is_negative = result == 1;
+                }
+#endif
+                if (is_unsigned && unlikely(is_negative)) {
+                    goto raise_neg_overflow;
+                } else if (is_negative) {
+                    stepval = PyNumber_Invert(v);
+                    if (unlikely(!stepval))
+                        return (long) -1;
+                } else {
+                    stepval = __Pyx_NewRef(v);
+                }
+                val = (long) 0;
+                mask = PyLong_FromLong((1L << chunk_size) - 1); if (unlikely(!mask)) goto done;
+                shift = PyLong_FromLong(chunk_size); if (unlikely(!shift)) goto done;
+                for (bits = 0; bits < (int) sizeof(long) * 8 - chunk_size; bits += chunk_size) {
+                    PyObject *tmp, *digit;
+                    digit = PyNumber_And(stepval, mask);
+                    if (unlikely(!digit)) goto done;
+                    idigit = PyLong_AsLong(digit);
+                    Py_DECREF(digit);
+                    if (unlikely(idigit < 0)) goto done;
+                    tmp = PyNumber_Rshift(stepval, shift);
+                    if (unlikely(!tmp)) goto done;
+                    Py_DECREF(stepval); stepval = tmp;
+                    val |= ((long) idigit) << bits;
+                    #if CYTHON_COMPILING_IN_LIMITED_API && PY_VERSION_HEX < 0x030B0000
+                    if (Py_SIZE(stepval) == 0)
+                        goto unpacking_done;
+                    #endif
+                }
+                idigit = PyLong_AsLong(stepval);
+                if (unlikely(idigit < 0)) goto done;
+                remaining_bits = ((int) sizeof(long) * 8) - bits - (is_unsigned ? 0 : 1);
+                if (unlikely(idigit >= (1L << remaining_bits)))
+                    goto raise_overflow;
+                val |= ((long) idigit) << bits;
+            #if CYTHON_COMPILING_IN_LIMITED_API && PY_VERSION_HEX < 0x030B0000
+            unpacking_done:
+            #endif
+                if (!is_unsigned) {
+                    if (unlikely(val & (((long) 1) << (sizeof(long) * 8 - 1))))
+                        goto raise_overflow;
+                    if (is_negative)
+                        val = ~val;
+                }
+                ret = 0;
+            done:
+                Py_XDECREF(shift);
+                Py_XDECREF(mask);
+                Py_XDECREF(stepval);
+#endif
                 Py_DECREF(v);
                 if (likely(!ret))
                     return val;
             }
-#endif
             return (long) -1;
         }
     } else {
@@ -21183,7 +26995,7 @@ raise_neg_overflow:
     const int is_unsigned = neg_one > const_zero;
 #if PY_MAJOR_VERSION < 3
     if (likely(PyInt_Check(x))) {
-        if (sizeof(char) < sizeof(long)) {
+        if ((sizeof(char) < sizeof(long))) {
             __PYX_VERIFY_RETURN_INT(char, long, PyInt_AS_LONG(x))
         } else {
             long val = PyInt_AS_LONG(x);
@@ -21197,40 +27009,45 @@ raise_neg_overflow:
     if (likely(PyLong_Check(x))) {
         if (is_unsigned) {
 #if CYTHON_USE_PYLONG_INTERNALS
-            const digit* digits = ((PyLongObject*)x)->ob_digit;
-            switch (Py_SIZE(x)) {
-                case  0: return (char) 0;
-                case  1: __PYX_VERIFY_RETURN_INT(char, digit, digits[0])
-                case 2:
-                    if (8 * sizeof(char) > 1 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(char) >= 2 * PyLong_SHIFT) {
-                            return (char) (((((char)digits[1]) << PyLong_SHIFT) | (char)digits[0]));
+            if (unlikely(__Pyx_PyLong_IsNeg(x))) {
+                goto raise_neg_overflow;
+            } else if (__Pyx_PyLong_IsCompact(x)) {
+                __PYX_VERIFY_RETURN_INT(char, __Pyx_compact_upylong, __Pyx_PyLong_CompactValueUnsigned(x))
+            } else {
+                const digit* digits = __Pyx_PyLong_Digits(x);
+                assert(__Pyx_PyLong_DigitCount(x) > 1);
+                switch (__Pyx_PyLong_DigitCount(x)) {
+                    case 2:
+                        if ((8 * sizeof(char) > 1 * PyLong_SHIFT)) {
+                            if ((8 * sizeof(unsigned long) > 2 * PyLong_SHIFT)) {
+                                __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                            } else if ((8 * sizeof(char) >= 2 * PyLong_SHIFT)) {
+                                return (char) (((((char)digits[1]) << PyLong_SHIFT) | (char)digits[0]));
+                            }
                         }
-                    }
-                    break;
-                case 3:
-                    if (8 * sizeof(char) > 2 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(char) >= 3 * PyLong_SHIFT) {
-                            return (char) (((((((char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0]));
+                        break;
+                    case 3:
+                        if ((8 * sizeof(char) > 2 * PyLong_SHIFT)) {
+                            if ((8 * sizeof(unsigned long) > 3 * PyLong_SHIFT)) {
+                                __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                            } else if ((8 * sizeof(char) >= 3 * PyLong_SHIFT)) {
+                                return (char) (((((((char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0]));
+                            }
                         }
-                    }
-                    break;
-                case 4:
-                    if (8 * sizeof(char) > 3 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(char) >= 4 * PyLong_SHIFT) {
-                            return (char) (((((((((char)digits[3]) << PyLong_SHIFT) | (char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0]));
+                        break;
+                    case 4:
+                        if ((8 * sizeof(char) > 3 * PyLong_SHIFT)) {
+                            if ((8 * sizeof(unsigned long) > 4 * PyLong_SHIFT)) {
+                                __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                            } else if ((8 * sizeof(char) >= 4 * PyLong_SHIFT)) {
+                                return (char) (((((((((char)digits[3]) << PyLong_SHIFT) | (char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0]));
+                            }
                         }
-                    }
-                    break;
+                        break;
+                }
             }
 #endif
-#if CYTHON_COMPILING_IN_CPYTHON
+#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX < 0x030C00A7
             if (unlikely(Py_SIZE(x) < 0)) {
                 goto raise_neg_overflow;
             }
@@ -21243,109 +27060,181 @@ raise_neg_overflow:
                     goto raise_neg_overflow;
             }
 #endif
-            if (sizeof(char) <= sizeof(unsigned long)) {
+            if ((sizeof(char) <= sizeof(unsigned long))) {
                 __PYX_VERIFY_RETURN_INT_EXC(char, unsigned long, PyLong_AsUnsignedLong(x))
 #ifdef HAVE_LONG_LONG
-            } else if (sizeof(char) <= sizeof(unsigned PY_LONG_LONG)) {
+            } else if ((sizeof(char) <= sizeof(unsigned PY_LONG_LONG))) {
                 __PYX_VERIFY_RETURN_INT_EXC(char, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
 #endif
             }
         } else {
 #if CYTHON_USE_PYLONG_INTERNALS
-            const digit* digits = ((PyLongObject*)x)->ob_digit;
-            switch (Py_SIZE(x)) {
-                case  0: return (char) 0;
-                case -1: __PYX_VERIFY_RETURN_INT(char, sdigit, (sdigit) (-(sdigit)digits[0]))
-                case  1: __PYX_VERIFY_RETURN_INT(char,  digit, +digits[0])
-                case -2:
-                    if (8 * sizeof(char) - 1 > 1 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(char, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(char) - 1 > 2 * PyLong_SHIFT) {
-                            return (char) (((char)-1)*(((((char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+            if (__Pyx_PyLong_IsCompact(x)) {
+                __PYX_VERIFY_RETURN_INT(char, __Pyx_compact_pylong, __Pyx_PyLong_CompactValue(x))
+            } else {
+                const digit* digits = __Pyx_PyLong_Digits(x);
+                assert(__Pyx_PyLong_DigitCount(x) > 1);
+                switch (__Pyx_PyLong_SignedDigitCount(x)) {
+                    case -2:
+                        if ((8 * sizeof(char) - 1 > 1 * PyLong_SHIFT)) {
+                            if ((8 * sizeof(unsigned long) > 2 * PyLong_SHIFT)) {
+                                __PYX_VERIFY_RETURN_INT(char, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                            } else if ((8 * sizeof(char) - 1 > 2 * PyLong_SHIFT)) {
+                                return (char) (((char)-1)*(((((char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+                            }
                         }
-                    }
-                    break;
-                case 2:
-                    if (8 * sizeof(char) > 1 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(char) - 1 > 2 * PyLong_SHIFT) {
-                            return (char) ((((((char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+                        break;
+                    case 2:
+                        if ((8 * sizeof(char) > 1 * PyLong_SHIFT)) {
+                            if ((8 * sizeof(unsigned long) > 2 * PyLong_SHIFT)) {
+                                __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                            } else if ((8 * sizeof(char) - 1 > 2 * PyLong_SHIFT)) {
+                                return (char) ((((((char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+                            }
                         }
-                    }
-                    break;
-                case -3:
-                    if (8 * sizeof(char) - 1 > 2 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(char, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(char) - 1 > 3 * PyLong_SHIFT) {
-                            return (char) (((char)-1)*(((((((char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+                        break;
+                    case -3:
+                        if ((8 * sizeof(char) - 1 > 2 * PyLong_SHIFT)) {
+                            if ((8 * sizeof(unsigned long) > 3 * PyLong_SHIFT)) {
+                                __PYX_VERIFY_RETURN_INT(char, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                            } else if ((8 * sizeof(char) - 1 > 3 * PyLong_SHIFT)) {
+                                return (char) (((char)-1)*(((((((char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+                            }
                         }
-                    }
-                    break;
-                case 3:
-                    if (8 * sizeof(char) > 2 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(char) - 1 > 3 * PyLong_SHIFT) {
-                            return (char) ((((((((char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+                        break;
+                    case 3:
+                        if ((8 * sizeof(char) > 2 * PyLong_SHIFT)) {
+                            if ((8 * sizeof(unsigned long) > 3 * PyLong_SHIFT)) {
+                                __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                            } else if ((8 * sizeof(char) - 1 > 3 * PyLong_SHIFT)) {
+                                return (char) ((((((((char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+                            }
                         }
-                    }
-                    break;
-                case -4:
-                    if (8 * sizeof(char) - 1 > 3 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(char, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(char) - 1 > 4 * PyLong_SHIFT) {
-                            return (char) (((char)-1)*(((((((((char)digits[3]) << PyLong_SHIFT) | (char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+                        break;
+                    case -4:
+                        if ((8 * sizeof(char) - 1 > 3 * PyLong_SHIFT)) {
+                            if ((8 * sizeof(unsigned long) > 4 * PyLong_SHIFT)) {
+                                __PYX_VERIFY_RETURN_INT(char, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                            } else if ((8 * sizeof(char) - 1 > 4 * PyLong_SHIFT)) {
+                                return (char) (((char)-1)*(((((((((char)digits[3]) << PyLong_SHIFT) | (char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+                            }
                         }
-                    }
-                    break;
-                case 4:
-                    if (8 * sizeof(char) > 3 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(char) - 1 > 4 * PyLong_SHIFT) {
-                            return (char) ((((((((((char)digits[3]) << PyLong_SHIFT) | (char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+                        break;
+                    case 4:
+                        if ((8 * sizeof(char) > 3 * PyLong_SHIFT)) {
+                            if ((8 * sizeof(unsigned long) > 4 * PyLong_SHIFT)) {
+                                __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                            } else if ((8 * sizeof(char) - 1 > 4 * PyLong_SHIFT)) {
+                                return (char) ((((((((((char)digits[3]) << PyLong_SHIFT) | (char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+                            }
                         }
-                    }
-                    break;
+                        break;
+                }
             }
 #endif
-            if (sizeof(char) <= sizeof(long)) {
+            if ((sizeof(char) <= sizeof(long))) {
                 __PYX_VERIFY_RETURN_INT_EXC(char, long, PyLong_AsLong(x))
 #ifdef HAVE_LONG_LONG
-            } else if (sizeof(char) <= sizeof(PY_LONG_LONG)) {
+            } else if ((sizeof(char) <= sizeof(PY_LONG_LONG))) {
                 __PYX_VERIFY_RETURN_INT_EXC(char, PY_LONG_LONG, PyLong_AsLongLong(x))
 #endif
             }
         }
         {
-#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
-            PyErr_SetString(PyExc_RuntimeError,
-                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
-#else
             char val;
             PyObject *v = __Pyx_PyNumber_IntOrLong(x);
- #if PY_MAJOR_VERSION < 3
+#if PY_MAJOR_VERSION < 3
             if (likely(v) && !PyLong_Check(v)) {
                 PyObject *tmp = v;
                 v = PyNumber_Long(tmp);
                 Py_DECREF(tmp);
             }
- #endif
+#endif
             if (likely(v)) {
+                int ret = -1;
+#if PY_VERSION_HEX < 0x030d0000 && !(CYTHON_COMPILING_IN_PYPY || CYTHON_COMPILING_IN_LIMITED_API) || defined(_PyLong_AsByteArray)
                 int one = 1; int is_little = (int)*(unsigned char *)&one;
                 unsigned char *bytes = (unsigned char *)&val;
-                int ret = _PyLong_AsByteArray((PyLongObject *)v,
-                                              bytes, sizeof(val),
-                                              is_little, !is_unsigned);
+                ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                           bytes, sizeof(val),
+                                           is_little, !is_unsigned);
+#else
+                PyObject *stepval = NULL, *mask = NULL, *shift = NULL;
+                int bits, remaining_bits, is_negative = 0;
+                long idigit;
+                int chunk_size = (sizeof(long) < 8) ? 30 : 62;
+                if (unlikely(!PyLong_CheckExact(v))) {
+                    PyObject *tmp = v;
+                    v = PyNumber_Long(v);
+                    assert(PyLong_CheckExact(v));
+                    Py_DECREF(tmp);
+                    if (unlikely(!v)) return (char) -1;
+                }
+#if CYTHON_COMPILING_IN_LIMITED_API && PY_VERSION_HEX < 0x030B0000
+                if (Py_SIZE(x) == 0)
+                    return (char) 0;
+                is_negative = Py_SIZE(x) < 0;
+#else
+                {
+                    int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
+                    if (unlikely(result < 0))
+                        return (char) -1;
+                    is_negative = result == 1;
+                }
+#endif
+                if (is_unsigned && unlikely(is_negative)) {
+                    goto raise_neg_overflow;
+                } else if (is_negative) {
+                    stepval = PyNumber_Invert(v);
+                    if (unlikely(!stepval))
+                        return (char) -1;
+                } else {
+                    stepval = __Pyx_NewRef(v);
+                }
+                val = (char) 0;
+                mask = PyLong_FromLong((1L << chunk_size) - 1); if (unlikely(!mask)) goto done;
+                shift = PyLong_FromLong(chunk_size); if (unlikely(!shift)) goto done;
+                for (bits = 0; bits < (int) sizeof(char) * 8 - chunk_size; bits += chunk_size) {
+                    PyObject *tmp, *digit;
+                    digit = PyNumber_And(stepval, mask);
+                    if (unlikely(!digit)) goto done;
+                    idigit = PyLong_AsLong(digit);
+                    Py_DECREF(digit);
+                    if (unlikely(idigit < 0)) goto done;
+                    tmp = PyNumber_Rshift(stepval, shift);
+                    if (unlikely(!tmp)) goto done;
+                    Py_DECREF(stepval); stepval = tmp;
+                    val |= ((char) idigit) << bits;
+                    #if CYTHON_COMPILING_IN_LIMITED_API && PY_VERSION_HEX < 0x030B0000
+                    if (Py_SIZE(stepval) == 0)
+                        goto unpacking_done;
+                    #endif
+                }
+                idigit = PyLong_AsLong(stepval);
+                if (unlikely(idigit < 0)) goto done;
+                remaining_bits = ((int) sizeof(char) * 8) - bits - (is_unsigned ? 0 : 1);
+                if (unlikely(idigit >= (1L << remaining_bits)))
+                    goto raise_overflow;
+                val |= ((char) idigit) << bits;
+            #if CYTHON_COMPILING_IN_LIMITED_API && PY_VERSION_HEX < 0x030B0000
+            unpacking_done:
+            #endif
+                if (!is_unsigned) {
+                    if (unlikely(val & (((char) 1) << (sizeof(char) * 8 - 1))))
+                        goto raise_overflow;
+                    if (is_negative)
+                        val = ~val;
+                }
+                ret = 0;
+            done:
+                Py_XDECREF(shift);
+                Py_XDECREF(mask);
+                Py_XDECREF(stepval);
+#endif
                 Py_DECREF(v);
                 if (likely(!ret))
                     return val;
             }
-#endif
             return (char) -1;
         }
     } else {
@@ -21366,26 +27255,95 @@ raise_neg_overflow:
     return (char) -1;
 }
 
+/* FormatTypeName */
+  #if CYTHON_COMPILING_IN_LIMITED_API
+static __Pyx_TypeName
+__Pyx_PyType_GetName(PyTypeObject* tp)
+{
+    PyObject *name = __Pyx_PyObject_GetAttrStr((PyObject *)tp,
+                                               __pyx_n_s_name_2);
+    if (unlikely(name == NULL) || unlikely(!PyUnicode_Check(name))) {
+        PyErr_Clear();
+        Py_XDECREF(name);
+        name = __Pyx_NewRef(__pyx_n_s__24);
+    }
+    return name;
+}
+#endif
+
 /* CheckBinaryVersion */
-  static int __Pyx_check_binary_version(void) {
-    char ctversion[4], rtversion[4];
-    PyOS_snprintf(ctversion, 4, "%d.%d", PY_MAJOR_VERSION, PY_MINOR_VERSION);
-    PyOS_snprintf(rtversion, 4, "%s", Py_GetVersion());
-    if (ctversion[0] != rtversion[0] || ctversion[2] != rtversion[2]) {
+  static unsigned long __Pyx_get_runtime_version(void) {
+#if __PYX_LIMITED_VERSION_HEX >= 0x030B00A4
+    return Py_Version & ~0xFFUL;
+#else
+    const char* rt_version = Py_GetVersion();
+    unsigned long version = 0;
+    unsigned long factor = 0x01000000UL;
+    unsigned int digit = 0;
+    int i = 0;
+    while (factor) {
+        while ('0' <= rt_version[i] && rt_version[i] <= '9') {
+            digit = digit * 10 + (unsigned int) (rt_version[i] - '0');
+            ++i;
+        }
+        version += factor * digit;
+        if (rt_version[i] != '.')
+            break;
+        digit = 0;
+        factor >>= 8;
+        ++i;
+    }
+    return version;
+#endif
+}
+static int __Pyx_check_binary_version(unsigned long ct_version, unsigned long rt_version, int allow_newer) {
+    const unsigned long MAJOR_MINOR = 0xFFFF0000UL;
+    if ((rt_version & MAJOR_MINOR) == (ct_version & MAJOR_MINOR))
+        return 0;
+    if (likely(allow_newer && (rt_version & MAJOR_MINOR) > (ct_version & MAJOR_MINOR)))
+        return 1;
+    {
         char message[200];
         PyOS_snprintf(message, sizeof(message),
-                      "compiletime version %s of module '%.100s' "
-                      "does not match runtime version %s",
-                      ctversion, __Pyx_MODULE_NAME, rtversion);
+                      "compile time Python version %d.%d "
+                      "of module '%.100s' "
+                      "%s "
+                      "runtime version %d.%d",
+                       (int) (ct_version >> 24), (int) ((ct_version >> 16) & 0xFF),
+                       __Pyx_MODULE_NAME,
+                       (allow_newer) ? "was newer than" : "does not match",
+                       (int) (rt_version >> 24), (int) ((rt_version >> 16) & 0xFF)
+       );
         return PyErr_WarnEx(NULL, message, 1);
     }
-    return 0;
 }
 
 /* InitStrings */
-  static int __Pyx_InitStrings(__Pyx_StringTabEntry *t) {
+  #if PY_MAJOR_VERSION >= 3
+static int __Pyx_InitString(__Pyx_StringTabEntry t, PyObject **str) {
+    if (t.is_unicode | t.is_str) {
+        if (t.intern) {
+            *str = PyUnicode_InternFromString(t.s);
+        } else if (t.encoding) {
+            *str = PyUnicode_Decode(t.s, t.n - 1, t.encoding, NULL);
+        } else {
+            *str = PyUnicode_FromStringAndSize(t.s, t.n - 1);
+        }
+    } else {
+        *str = PyBytes_FromStringAndSize(t.s, t.n - 1);
+    }
+    if (!*str)
+        return -1;
+    if (PyObject_Hash(*str) == -1)
+        return -1;
+    return 0;
+}
+#endif
+static int __Pyx_InitStrings(__Pyx_StringTabEntry *t) {
     while (t->p) {
-        #if PY_MAJOR_VERSION < 3
+        #if PY_MAJOR_VERSION >= 3
+        __Pyx_InitString(*t, t->p);
+        #else
         if (t->is_unicode) {
             *t->p = PyUnicode_DecodeUTF8(t->s, t->n - 1, NULL);
         } else if (t->intern) {
@@ -21393,30 +27351,34 @@ raise_neg_overflow:
         } else {
             *t->p = PyString_FromStringAndSize(t->s, t->n - 1);
         }
-        #else
-        if (t->is_unicode | t->is_str) {
-            if (t->intern) {
-                *t->p = PyUnicode_InternFromString(t->s);
-            } else if (t->encoding) {
-                *t->p = PyUnicode_Decode(t->s, t->n - 1, t->encoding, NULL);
-            } else {
-                *t->p = PyUnicode_FromStringAndSize(t->s, t->n - 1);
-            }
-        } else {
-            *t->p = PyBytes_FromStringAndSize(t->s, t->n - 1);
-        }
-        #endif
         if (!*t->p)
             return -1;
         if (PyObject_Hash(*t->p) == -1)
             return -1;
+        #endif
         ++t;
     }
     return 0;
 }
 
+#include <string.h>
+static CYTHON_INLINE Py_ssize_t __Pyx_ssize_strlen(const char *s) {
+    size_t len = strlen(s);
+    if (unlikely(len > (size_t) PY_SSIZE_T_MAX)) {
+        PyErr_SetString(PyExc_OverflowError, "byte string is too long");
+        return -1;
+    }
+    return (Py_ssize_t) len;
+}
 static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char* c_str) {
-    return __Pyx_PyUnicode_FromStringAndSize(c_str, (Py_ssize_t)strlen(c_str));
+    Py_ssize_t len = __Pyx_ssize_strlen(c_str);
+    if (unlikely(len < 0)) return NULL;
+    return __Pyx_PyUnicode_FromStringAndSize(c_str, len);
+}
+static CYTHON_INLINE PyObject* __Pyx_PyByteArray_FromString(const char* c_str) {
+    Py_ssize_t len = __Pyx_ssize_strlen(c_str);
+    if (unlikely(len < 0)) return NULL;
+    return PyByteArray_FromStringAndSize(c_str, len);
 }
 static CYTHON_INLINE const char* __Pyx_PyObject_AsString(PyObject* o) {
     Py_ssize_t ignore;
@@ -21471,7 +27433,7 @@ static CYTHON_INLINE const char* __Pyx_PyObject_AsStringAndSize(PyObject* o, Py_
         return __Pyx_PyUnicode_AsStringAndSize(o, length);
     } else
 #endif
-#if (!CYTHON_COMPILING_IN_PYPY) || (defined(PyByteArray_AS_STRING) && defined(PyByteArray_GET_SIZE))
+#if (!CYTHON_COMPILING_IN_PYPY && !CYTHON_COMPILING_IN_LIMITED_API) || (defined(PyByteArray_AS_STRING) && defined(PyByteArray_GET_SIZE))
     if (PyByteArray_Check(o)) {
         *length = PyByteArray_GET_SIZE(o);
         return PyByteArray_AS_STRING(o);
@@ -21500,22 +27462,26 @@ static CYTHON_INLINE int __Pyx_PyObject_IsTrueAndDecref(PyObject* x) {
     return retval;
 }
 static PyObject* __Pyx_PyNumber_IntOrLongWrongResultType(PyObject* result, const char* type_name) {
+    __Pyx_TypeName result_type_name = __Pyx_PyType_GetName(Py_TYPE(result));
 #if PY_MAJOR_VERSION >= 3
     if (PyLong_Check(result)) {
         if (PyErr_WarnFormat(PyExc_DeprecationWarning, 1,
-                "__int__ returned non-int (type %.200s).  "
-                "The ability to return an instance of a strict subclass of int "
-                "is deprecated, and may be removed in a future version of Python.",
-                Py_TYPE(result)->tp_name)) {
+                "__int__ returned non-int (type " __Pyx_FMT_TYPENAME ").  "
+                "The ability to return an instance of a strict subclass of int is deprecated, "
+                "and may be removed in a future version of Python.",
+                result_type_name)) {
+            __Pyx_DECREF_TypeName(result_type_name);
             Py_DECREF(result);
             return NULL;
         }
+        __Pyx_DECREF_TypeName(result_type_name);
         return result;
     }
 #endif
     PyErr_Format(PyExc_TypeError,
-                 "__%.4s__ returned non-%.4s (type %.200s)",
-                 type_name, type_name, Py_TYPE(result)->tp_name);
+                 "__%.4s__ returned non-%.4s (type " __Pyx_FMT_TYPENAME ")",
+                 type_name, type_name, result_type_name);
+    __Pyx_DECREF_TypeName(result_type_name);
     Py_DECREF(result);
     return NULL;
 }
@@ -21581,13 +27547,11 @@ static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject* b) {
 #endif
   if (likely(PyLong_CheckExact(b))) {
     #if CYTHON_USE_PYLONG_INTERNALS
-    const digit* digits = ((PyLongObject*)b)->ob_digit;
-    const Py_ssize_t size = Py_SIZE(b);
-    if (likely(__Pyx_sst_abs(size) <= 1)) {
-        ival = likely(size) ? digits[0] : 0;
-        if (size == -1) ival = -ival;
-        return ival;
+    if (likely(__Pyx_PyLong_IsCompact(b))) {
+        return __Pyx_PyLong_CompactValue(b);
     } else {
+      const digit* digits = __Pyx_PyLong_Digits(b);
+      const Py_ssize_t size = __Pyx_PyLong_SignedDigitCount(b);
       switch (size) {
          case 2:
            if (8 * sizeof(Py_ssize_t) > 2 * PyLong_SHIFT) {
@@ -21655,4 +27619,12 @@ static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t ival) {
 }
 
 
+/* #### Code section: utility_code_pragmas_end ### */
+#ifdef _MSC_VER
+#pragma warning( pop )
+#endif
+
+
+
+/* #### Code section: end ### */
 #endif /* Py_PYTHON_H */