Question

What is the easiest way to convert list with str into list with int in Python?
For example, we have to convert ['1', '2', '3'] to [1, 2, 3]. Of course, we can use a for loop, but it’s too easy.

Answer 1

Python 2.x:

map(int, ["1", "2", "3"])

Python 3.x (in 3.x, map returns an iterator, not a list as in 2.x):

list(map(int, ["1", "2", "3"]))

map documentation: 2.6, 3.1