def get_previous_week(self, date):
        return _get_next_prev(self, date, is_previous=True, period='week')
assert that we get the correct op code for an RSA identities request
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/django/views/generic/dates.py/WeekMixin.get_previous_week--crossover with--dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/conch/test/test_agent.py/TestUnimplementedVersionOneServer.test_agentc_REQUEST_RSA_IDENTITIES