lib.py 文件源码

def find_library(self, path):
        '''Implements the dylib search as specified in Apple documentation:

        http://developer.apple.com/documentation/DeveloperTools/Conceptual/DynamicLibraries/100-Articles/DynamicLibraryUsageGuidelines.html

        Before commencing the standard search, the method first checks
        the bundle's ``Frameworks`` directory if the application is running
        within a bundle (OS X .app).
        '''

        libname = os.path.basename(path)
        search_path = []

        if '.' not in libname:
            libname = 'lib' + libname + '.dylib'

        # py2app support
        if (hasattr(sys, 'frozen') and sys.frozen == 'macosx_app' and
                'RESOURCEPATH' in os.environ):
            search_path.append(os.path.join(
                os.environ['RESOURCEPATH'],
                '..',
                'Frameworks',
                libname))

        # pyinstaller.py sets sys.frozen to True, and puts dylibs in
        # Contents/MacOS, which path pyinstaller puts in sys._MEIPASS
        if (hasattr(sys, 'frozen') and hasattr(sys, '_MEIPASS') and
                sys.frozen == True and pyglet.compat_platform == 'darwin'):
            search_path.append(os.path.join(sys._MEIPASS, libname))

        if '/' in path:
            search_path.extend(
                [os.path.join(p, libname) \
                    for p in self.dyld_library_path])
            search_path.append(path)
            search_path.extend(
                [os.path.join(p, libname) \
                    for p in self.dyld_fallback_library_path])
        else:
            search_path.extend(
                [os.path.join(p, libname) \
                    for p in self.ld_library_path])
            search_path.extend(
                [os.path.join(p, libname) \
                    for p in self.dyld_library_path])
            search_path.append(path)
            search_path.extend(
                [os.path.join(p, libname) \
                    for p in self.dyld_fallback_library_path])

        for path in search_path:
            if os.path.exists(path):
                return path

        return None