registry.py 文件源码

def _import_modules_from_package():
    folder = os.path.dirname(os_faults.__file__)
    library_root = os.path.normpath(os.path.join(folder, os.pardir))

    for root, dirs, files in os.walk(folder):
        for filename in files:
            if (filename.startswith('__') or
                    filename.startswith('test') or
                    not filename.endswith('.py')):
                continue

            relative_path = os.path.relpath(os.path.join(root, filename),
                                            library_root)
            name = os.path.splitext(relative_path)[0]  # remove extension
            module_name = '.'.join(name.split(os.sep))  # convert / to .

            if module_name not in sys.modules:
                module = importutils.import_module(module_name)
                sys.modules[module_name] = module
            else:
                module = sys.modules[module_name]

            yield module