def __getitem__(self, index):
        try:
            return deque.__getitem__(self, index)
        except TypeError:
            return type(self)(islice(self, index.start, index.stop, index.step))
A trigger removed with L{IReactorCore.removeSystemEventTrigger} should
dataset/ETHPy150Open klen/graphite-beacon/graphite_beacon/alerts.py/sliceable_deque.__getitem__--crossover with--dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/test/test_internet.py/SystemEventTestCase.test_removeSystemEventTrigger