Most pythonic way to interleave two strings

Question

What\'s the most pythonic way to mesh two strings together?

For example:

Input:

u = \'ABCDEFGHIJKLMNOPQRSTUVWXYZ\'
l = \'abcdefghijklmnopqrst         


        

Answer 1

You could also do this using map and operator.add:

from operator import add

u = 'AAAAA'
l = 'aaaaa'

s = "".join(map(add, u, l))

Output:

'AaAaAaAaAa'

What map does is it takes every element from the first iterable u and the first elements from the second iterable l and applies the function supplied as the first argument add. Then join just joins them.