def __abs__(self):
        return self.__class__(abs(x) for x in self)
Test that update changes the right number of rows for an empty queryset
dataset/ETHPy150Open CountZer0/PipelineConstructionSet/python/maya/site-packages/pymel-1.0.3/pymel/util/arrays.py/Array.__abs__--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.4/tests/modeltests/update/tests.py/SimpleTest.test_empty_update_with_inheritance