Class Right

Lib/test/test_compare.py:62–68

                calls.append('Left.__eq__')
                return NotImplemented
        class Right:
            def __eq__(*args):
                calls.append('Right.__eq__')
                return NotImplemented
            def __ne__(*args):
                calls.append('Right.__ne__')
                return NotImplemented
        Left() != Right()
        self.assertSequenceEqual(calls, ['Left.__eq__', 'Right.__ne__'])