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