def test_lessThan(self):
        """
        Instances of a class that is decorated by C{comparable} support
        less-than comparisons.
        """
        self.assertTrue(Comparable(0) < Comparable(3))
        self.assertFalse(Comparable(2) < Comparable(0))

        Instances of a class that is decorated by C{comparable} support
        less-than comparisons.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/test/test_compat.py