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Windows: Improve DLL loading error messages

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jaseg 2024-08-14 10:55:51 +02:00
parent ef3f47c3ec
commit 3d09f5199e
1 changed files with 9 additions and 1 deletions
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10
mpv.py
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@ -38,7 +38,15 @@ if os.name == 'nt':
dll = ctypes.util.find_library('mpv-2.dll') or ctypes.util.find_library('libmpv-2.dll') or ctypes.util.find_library('mpv-1.dll')
if dll is None:
raise OSError('Cannot find mpv-1.dll, mpv-2.dll or libmpv-2.dll in your system %PATH%. One way to deal with this is to ship the dll with your script and put the directory your script is in into %PATH% before "import mpv": os.environ["PATH"] = os.path.dirname(__file__) + os.pathsep + os.environ["PATH"] If mpv-1.dll is located elsewhere, you can add that path to os.environ["PATH"].')
backend = CDLL(dll)
# flags argument: LOAD_LIBRARY_SEARCH_DEFAULT_DIRS | LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR
# cf. https://learn.microsoft.com/en-us/windows/win32/api/libloaderapi/nf-libloaderapi-loadlibraryexa
try:
backend = CDLL(dll, 0x00001000 | 0x00000100)
except Exception as e:
if not os.path.isabs(dll):
raise OSError(f'ctypes.find_library found mpv.dll at {dll}, but ctypes.CDLL could not load it. It looks like find_library found mpv.dll under a relative path entry in %PATH%. Please make sure all paths in %PATH% are absolute. Instead of trying to load mpv.dll from the current working directory, put it somewhere next to your script and add that path to %PATH% using os.environ["PATH"] = os.path.dirname(__file__) + os.pathsep + os.environ["PATH"]') from e
else:
raise OSError(f'ctypes.find_library found mpv.dll at {dll}, but ctypes.CDLL could not load it.') from e
fs_enc = 'utf-8'
else:
import locale