Method test_deepcopy_keepalive

Lib/test/test_copy.py:436–440

(self)

        self.assertEqual(len(y), 1)

    def test_deepcopy_keepalive(self):
        memo = {}
        x = []
        y = copy.deepcopy(x, memo)
        self.assertIs(memo[id(memo)][0], x)

    def test_deepcopy_dont_memo_immutable(self):
        memo = {}