def __setitem__(self, key, value):
        if self not in key:
            self.keyOrder.append(key)
        super(SortedDict, self).__setitem__(key, value)
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/django/utils/datastructures.py/SortedDict.__setitem__/swapped operands of `not in`