python: pointwise list sum

Question

Input: two lists (list1, list2) of equal length
Output: one list (result) of the same length, such that:
    result[i] = list1[i] + list2[i]

Is there any concise way to do that? Or is this the best:

# Python 3
assert len(list1) == len(list2)
result = [list1[i] + list2[i] for i in range(len(list1))]

Answer 1

You can use the builtin zip function, or you can also use do it mapping the two lists over the add operator. Like this:

from operator import add
map(add, list1,list2)