Class C

Lib/test/test_copy.py:32–36

    def test_copy_copy(self):
        class C(object):
            def __init__(self, foo):
                self.foo = foo
            def __copy__(self):
                return C(self.foo)
        x = C(42)
        y = copy.copy(x)
        self.assertEqual(y.__class__, x.__class__)