Class Zap

Lib/test/test_genericalias.py:249–258

    def test_evil_repr1(self):
        # gh-143635
        class Zap:
            def __init__(self, container):
                self.container = container
            def __getattr__(self, name):
                if name == "__origin__":
                    self.container.clear()
                    return None
                if name == "__args__":
                    return ()
                raise AttributeError

        params = []
        params.append(Zap(params))