test_api.py 文件源码

def test_everyone_has___loader__(self):
        # Issue #17098: all modules should have __loader__ defined.
        for name, module in sys.modules.items():
            if isinstance(module, types.ModuleType):
                if name in sys.builtin_module_names:
                    self.assertEqual(importlib.machinery.BuiltinImporter,
                                     module.__loader__)
                elif imp.is_frozen(name):
                    self.assertEqual(importlib.machinery.FrozenImporter,
                                     module.__loader__)