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python(loader): add workaround to detect and patch sys.path[0]

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This commit is contained in:
Alexander Alekhin 2021-06-09 09:51:07 +00:00
parent b221143c0f
commit bd26104088
1 changed files with 13 additions and 1 deletions
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14
modules/python/package/cv2/__init__.py
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@ -68,8 +68,20 @@ def bootstrap():
if DEBUG: print('OpenCV loader: PYTHON_EXTENSIONS_PATHS={}'.format(str(l_vars['PYTHON_EXTENSIONS_PATHS'])))
if DEBUG: print('OpenCV loader: BINARIES_PATHS={}'.format(str(l_vars['BINARIES_PATHS'])))
applySysPathWorkaround = False
if hasattr(sys, 'OpenCV_REPLACE_SYS_PATH_0'):
applySysPathWorkaround = True
else:
try:
BASE_DIR = os.path.dirname(LOADER_DIR)
if sys.path[0] == BASE_DIR or os.path.realpath(sys.path[0]) == BASE_DIR:
applySysPathWorkaround = True
except:
if DEBUG: print('OpenCV loader: exception during checking workaround for sys.path[0]')
pass # applySysPathWorkaround is False
for p in reversed(l_vars['PYTHON_EXTENSIONS_PATHS']):
sys.path.insert(1, p)
sys.path.insert(1 if not applySysPathWorkaround else 0, p)
if os.name == 'nt':
if sys.version_info[:2] >= (3, 8): # https://github.com/python/cpython/pull/12302