Pytest has a number of tools for monkeypatching in tests; rpytest.monkeypatch.setattr, setitem: https://docs.pytest.org/en/stable/how-to/monkeypatch.html https

Pytest has a number of tools for monkeypatching in tests; rpytest.monkeypatch.setattr, setitem: https://docs.pytest.org/en/stable/how-to/monkeypatch.html https://docs.pytest.org/en/stable/how-to/monkeypatch.html Pickles aren't signed and pickle is basically eval().