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"""Functions for initializing the Julia environment and installing deps."""
from typing import Any, Callable, Union, cast
import numpy as np
from juliacall import convert as jl_convert # type: ignore
from numpy.typing import NDArray
from .deprecated import init_julia, install
from .julia_import import jl
jl_convert = cast(Callable[[Any, Any], Any], jl_convert)
jl.seval("using Serialization: Serialization")
jl.seval("using PythonCall: PythonCall")
Serialization = jl.Serialization
PythonCall = jl.PythonCall
jl.seval("using SymbolicRegression: plus, sub, mult, div, pow")
def _escape_filename(filename):
"""Turn a path into a string with correctly escaped backslashes."""
str_repr = str(filename)
str_repr = str_repr.replace("\\", "\\\\")
return str_repr
def _load_cluster_manager(cluster_manager: str):
jl.seval(f"using ClusterManagers: addprocs_{cluster_manager}")
return jl.seval(f"addprocs_{cluster_manager}")
def jl_array(x, dtype=None):
if x is None:
return None
elif dtype is None:
return jl_convert(jl.Array, x)
else:
return jl_convert(jl.Array[dtype], x)
def jl_is_function(f) -> bool:
return cast(bool, jl.seval("op -> op isa Function")(f))
def jl_serialize(obj: Any) -> NDArray[np.uint8]:
buf = jl.IOBuffer()
Serialization.serialize(buf, obj)
return np.array(jl.take_b(buf))
def jl_deserialize(s: Union[NDArray[np.uint8], None]):
if s is None:
return s
buf = jl.IOBuffer()
jl.write(buf, jl_array(s))
jl.seekstart(buf)
return Serialization.deserialize(buf)
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