How to Convert all Strings in a List to Int in Python

Using map Method

You can convert all strings in a list to int using the map method. For example,

#!/usr/bin/python3

a = ["1", "2", "4", "5"]

b = list(map(int, a))
print(b)

[1, 2, 4, 5]

Using List Comprehension

The following example should cover whatever you are trying to do:

#!/usr/bin/python3

a = ["1", "2", "4", "5"]

b = [int(i) for i in a]
print(b)

[1, 2, 4, 5]