What is the easiest way to convert list with str into list with int?

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\']

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