Where should I subtract 1 when generating random numbers?

When I want a random item of a list, I normally do:

import random
random.randint(0, len(array)-1)

(and then put that in as the index for the list - array[<codeabove>] )

However, I was wondering if it was more efficient / better practise to do the following:

import random
random.randint(1, len(array)) -1

Does it make any difference to execution time, or is better practise in general to use one over the other?