Class DateSubclass

Lib/test/datetimetester.py:1870–1874

    def test_subclass_replace(self):
        class DateSubclass(self.theclass):
            def __new__(cls, *args, **kwargs):
                result = self.theclass.__new__(cls, *args, **kwargs)
                result.extra = 7
                return result

        dt = DateSubclass(2012, 1, 1)