Comparing two lists in Python

Question

So to give a rough example without any code written for it yet, I\'m curious on how I would be able to figure out what both lists have in common.

Example:

Answer 1

If the two lists are the same length, you can do a side-by-side iteration, like so:

list_common = []
for a, b in zip(list_a, list_b):
    if a == b:
        list_common.append(a)