def test_simple_cycle_oldstyle_class(self):
        class Foo:
            def __init__(self, child=None):
                self.child = child

        self._simple_cycle_helper(Foo)
Can the garbage collector clean up a cycle with old style class?
dataset/ETHPy150Open enthought/traits/traits/tests/test_trait_cycle.py/TestCase.test_simple_cycle_oldstyle_class