def test_change_keys(self):
        k = self.d2.keys()
        k.remove(9)
        self.assertEquals(self.d2.keys(), [1, 9, 0, 7])
Changing the keys won't do anything, it's only a copy of the
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.2/tests/regressiontests/utils/datastructures.py/SortedDictTests.test_change_keys