mirror of https://github.com/opencv/opencv.git
Open Source Computer Vision Library
https://opencv.org/
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89 lines
2.8 KiB
89 lines
2.8 KiB
''' |
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OpenCV Python binary extension loader |
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''' |
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import os |
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import sys |
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try: |
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import numpy |
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import numpy.core.multiarray |
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except ImportError: |
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print('OpenCV bindings requires "numpy" package.') |
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print('Install it via command:') |
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print(' pip install numpy') |
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raise |
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# TODO |
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# is_x64 = sys.maxsize > 2**32 |
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def bootstrap(): |
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import sys |
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if hasattr(sys, 'OpenCV_LOADER'): |
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print(sys.path) |
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raise ImportError('ERROR: recursion is detected during loading of "cv2" binary extensions. Check OpenCV installation.') |
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sys.OpenCV_LOADER = True |
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DEBUG = False |
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if hasattr(sys, 'OpenCV_LOADER_DEBUG'): |
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DEBUG = True |
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import platform |
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if DEBUG: print('OpenCV loader: os.name="{}" platform.system()="{}"'.format(os.name, str(platform.system()))) |
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LOADER_DIR=os.path.dirname(os.path.abspath(__file__)) |
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PYTHON_EXTENSIONS_PATHS = [] |
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BINARIES_PATHS = [] |
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g_vars = globals() |
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l_vars = locals() |
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if sys.version_info[:2] < (3, 0): |
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from . load_config_py2 import exec_file_wrapper |
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else: |
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from . load_config_py3 import exec_file_wrapper |
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def load_first_config(fnames, required=True): |
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for fname in fnames: |
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fpath = os.path.join(LOADER_DIR, fname) |
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if not os.path.exists(fpath): |
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if DEBUG: print('OpenCV loader: config not found, skip: {}'.format(fpath)) |
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continue |
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if DEBUG: print('OpenCV loader: loading config: {}'.format(fpath)) |
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exec_file_wrapper(fpath, g_vars, l_vars) |
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return True |
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if required: |
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raise ImportError('OpenCV loader: missing configuration file: {}. Check OpenCV installation.'.format(fnames)) |
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load_first_config(['config.py'], True) |
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load_first_config([ |
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'config-{}.{}.py'.format(sys.version_info[0], sys.version_info[1]), |
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'config-{}.py'.format(sys.version_info[0]) |
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], True) |
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if DEBUG: print('OpenCV loader: PYTHON_EXTENSIONS_PATHS={}'.format(str(l_vars['PYTHON_EXTENSIONS_PATHS']))) |
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if DEBUG: print('OpenCV loader: BINARIES_PATHS={}'.format(str(l_vars['BINARIES_PATHS']))) |
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for p in reversed(l_vars['PYTHON_EXTENSIONS_PATHS']): |
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sys.path.insert(1, p) |
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if os.name == 'nt': |
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os.environ['PATH'] = ';'.join(l_vars['BINARIES_PATHS']) + ';' + os.environ.get('PATH', '') |
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if DEBUG: print('OpenCV loader: PATH={}'.format(str(os.environ['PATH']))) |
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else: |
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# amending of LD_LIBRARY_PATH works for sub-processes only |
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os.environ['LD_LIBRARY_PATH'] = ':'.join(l_vars['BINARIES_PATHS']) + ':' + os.environ.get('LD_LIBRARY_PATH', '') |
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if DEBUG: print('OpenCV loader: replacing cv2 module') |
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del sys.modules['cv2'] |
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import cv2 |
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try: |
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import sys |
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del sys.OpenCV_LOADER |
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except: |
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pass |
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if DEBUG: print('OpenCV loader: DONE') |
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bootstrap()
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