test_types_extras.py 文件源码

def test_eq_subclass(self):
        from psycopg2.extras import Range, NumericRange

        class IntRange(NumericRange):
            pass

        class PositiveIntRange(IntRange):
            pass

        self.assertEqual(Range(10, 20), IntRange(10, 20))
        self.assertEqual(PositiveIntRange(10, 20), IntRange(10, 20))

    # as the postgres docs describe for the server-side stuff,
    # ordering is rather arbitrary, but will remain stable
    # and consistent.