gistfile1.txt

=================================================== test session starts ===================================================
platform linux2 -- Python 2.7.5 -- pytest-2.3.4
plugins: cov
collected 1 items 

whatever.py F

======================================================== FAILURES =========================================================
________________________________________________________ test_foo _________________________________________________________

    def test_foo():
        a = [1, 2, 3]
        b = [1, 2, 3, 4]
>       assert len(a) == len(b)
E       assert 3 == 4
E        +  where 3 = len([1, 2, 3])
E        +  and   4 = len([1, 2, 3, 4])

whatever.py:4: AssertionError
================================================ 1 failed in 0.01 seconds =================================================