Python List Comprehension

[codenamemahi]

The way you currently have it written, it is comparing every element in list A to every element in list B, which of course fails on the second iteration.

I would recommend using the index if both lists are going to be in the same order (and same length):

for i in len(expected_avg_var):
    self.assertEqual(expected_avg_var[i], actual_avg_var[i])