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| ''' | |
| Helper to preload windows dlls to prevent dll not found errors. | |
| Once a DLL is preloaded, its namespace is made available to any | |
| subsequent DLL. This file originated in the numpy-wheels repo, | |
| and is created as part of the scripts that build the wheel. | |
| ''' | |
| import os | |
| import glob | |
| if os.name == 'nt': | |
| # convention for storing / loading the DLL from | |
| # numpy/.libs/, if present | |
| try: | |
| from ctypes import WinDLL | |
| basedir = os.path.dirname(__file__) | |
| except: | |
| pass | |
| else: | |
| libs_dir = os.path.abspath(os.path.join(basedir, '.libs')) | |
| DLL_filenames = [] | |
| if os.path.isdir(libs_dir): | |
| for filename in glob.glob(os.path.join(libs_dir, | |
| '*openblas*dll')): | |
| # NOTE: would it change behavior to load ALL | |
| # DLLs at this path vs. the name restriction? | |
| WinDLL(os.path.abspath(filename)) | |
| DLL_filenames.append(filename) | |
| if len(DLL_filenames) > 1: | |
| import warnings | |
| warnings.warn("loaded more than 1 DLL from .libs:" | |
| "\n%s" % "\n".join(DLL_filenames), | |
| stacklevel=1) | |