Method __init__

Lib/test/test_descr.py:1375–1376

(self)

        class C2(C1, metaclass=Meta, attr="__classcell__"):
            __slots__ = ["__classcell__"]
            def __init__(self):
                super().__init__()
        self.assertIsInstance(C2.__dict__["__classcell__"],
                              types.MemberDescriptorType)
        c = C2()