__init__.py 文件源码

def load_module(self, full_name):
        orig = full_name.split('.')[-1]

        if orig not in sklearn.__all__:
            raise ImportError('%s not in sklearn' % orig)

        mod = sys.modules.setdefault(full_name, imp.new_module(full_name))
        mod.__file__ = ''
        mod.__name__ = full_name
        mod.__path__ = ''
        mod.__loader__ = self
        mod.__package__ = '.'.join(full_name.split('.')[:-1])

        code = _code.substitute({'mod_name': orig})

        six.exec_(code, mod.__dict__)

        return mod