Shannon -jj Behrens wrote: > def test_iter_len(): > assert_equal(iter_len(xrange(5)), 5) > > > Gees, I'm so boring sometimes! > BTW, did you ever notice that the result of xrange has a __len__ already? len(xrange(5)) -> 5 Maybe your iter_len should try that first, in case the incoming object has thoughtfully provided a __len__ method.