def lookups(self, request, model_admin):
        raise NotImplementedError
Ensure that invalid basic auth headers are treated correctly.
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/django/contrib/admin/filters.py/SimpleListFilter.lookups--crossover with--dataset/ETHPy150Open funkbit/django-dynamicresponse/examples/myblog/blog/tests/api.py/ApiTest.testInvalidBasicAuthStringResponse