test_types.py 文件源码

def test_metaclass_override_function(self):
        # Special case: the given metaclass isn't a class,
        # so there is no metaclass calculation.
        class A(metaclass=self.Meta):
            pass

        marker = object()
        def func(*args, **kwargs):
            return marker

        X = types.new_class("X", (), {"metaclass": func})
        Y = types.new_class("Y", (object,), {"metaclass": func})
        Z = types.new_class("Z", (A,), {"metaclass": func})
        self.assertIs(marker, X)
        self.assertIs(marker, Y)
        self.assertIs(marker, Z)