pickletester.py 文件源码

def test_nested_names(self):
        global Nested
        class Nested:
            class A:
                class B:
                    class C:
                        pass

        for proto in range(4, pickle.HIGHEST_PROTOCOL + 1):
            for obj in [Nested.A, Nested.A.B, Nested.A.B.C]:
                with self.subTest(proto=proto, obj=obj):
                    unpickled = self.loads(self.dumps(obj, proto))
                    self.assertIs(obj, unpickled)