def replace(self, elem):
        return None
date_list should be sorted ascending in month view
dataset/ETHPy150Open RoseOu/flasky/venv/lib/python2.7/site-packages/sqlalchemy/sql/visitors.py/ReplacingCloningVisitor.replace--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/tests/regressiontests/generic_views/dates.py/MonthArchiveViewTests.test_date_list_order