mirror of https://github.com/opencv/opencv.git
Open Source Computer Vision Library
https://opencv.org/
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90 lines
2.8 KiB
90 lines
2.8 KiB
6 years ago
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'''
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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 cv2.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(0, 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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