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

        self._simple_cycle_helper(Foo)
Prepend a list of values in front of self[var].
dataset/ETHPy150Open enthought/traits/traits/tests/test_trait_cycle.py/TestCase.test_simple_cycle_newstyle_class--crossover with--dataset/ETHPy150Open cournape/Bento/bento/private/_yaku/yaku/environment.py/Environment.prextend