Class NotEnough

Lib/test/datetimetester.py:187–190

    def test_subclass_must_override(self):
        class NotEnough(tzinfo):
            def __init__(self, offset, name):
                self.__offset = offset
                self.__name = name
        self.assertIsSubclass(NotEnough, tzinfo)
        ne = NotEnough(3, "NotByALongShot")
        self.assertIsInstance(ne, tzinfo)