Method test_cycle

Lib/test/test_slice.py:289–296

(self)

        self.assertIsNot(s.step, c.step)

    def test_cycle(self):
        class myobj(): pass
        o = myobj()
        o.s = slice(o)
        w = weakref.ref(o)
        o = None
        support.gc_collect()
        self.assertIsNone(w())

if __name__ == "__main__":
    unittest.main()