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

If your strings are not only numbers (ie. u''), you can use :

new = [int(i) for i in ["1", "2", "3"] if isinstance(i, int) or isinstance(i, (str, unicode)) and i.isnumeric()]