Class hexint

Lib/test/test_descr.py:2865–2871

        # Testing inheritance from basic types...

        class hexint(int):
            def __repr__(self):
                return hex(self)
            def __add__(self, other):
                return hexint(int.__add__(self, other))
            # (Note that overriding __radd__ doesn't work,
            # because the int type gets first dibs.)
        self.assertEqual(repr(hexint(7) + 9), "0x10")
        self.assertEqual(repr(hexint(1000) + 7), "0x3ef")
        a = hexint(12345)