>>> import numpy as np
>>> from itertools import zip_longest
>>>
>>> a = [1,2,3,4,5]
>>> b = [1,2,3,5,4]
>>> np.mean([v1==v2 for v1,v2 in zip_longest(a,b)]) * 100
60.0
>>>
>>> import random
>>> c = [random.randrange(1,10) for _ in range(random.randrange(5,10))]
>>> d = [random.randrange(1,10) for _ in range(random.randrange(5,10))]
>>> np.mean([v1==v2 for v1,v2 in zip_longest(c,d)]) * 100
25.0
>>>
>>> c
[1, 1, 5, 2, 8]
>>> d
[1, 2, 7, 2, 9, 5, 1, 1]
>>>