I have now:
list1 = [1, 2, 3] list2 = [4, 5, 6]
I wish to have:
[1, 2, 3] + + +
I haven't timed it but I suspect this would be pretty quick:
import numpy as np list1=[1, 2, 3] list2=[4, 5, 6] list_sum = (np.add(list1, list2)).tolist() [5, 7, 9]