'This is a thing in unittest in 2.7,
but until then this is the thing.
Oh, and Django\'s `assertSetEqual` is lame and requires actual sets:
http://bit.ly/RO9sTr'

def assertSetEqual(self, a, b, message=None):

    eq_(set(a), set(b), message)
    eq_(len(a), len(b), message)
