Convert all strings in a list to int

In Python, I want to convert all strings in a list to integers.

So if I have:

results = ['1', '2', '3']

How do I make it:

results = [1, 2, 3]

Solution 1:

Use the map function (in Python 2.x):

results = map(int, results)

In Python 3, you will need to convert the result from map to a list:

results = list(map(int, results))

Use a list comprehension:

results = [int(i) for i in results]

e.g.

>>> results = ["1", "2", "3"]
>>> results = [int(i) for i in results]
>>> results
[1, 2, 3]

You can easily convert string list items into int items using loop shorthand in python

Say you have a string result = ['1','2','3']

Just do,

result = [int(item) for item in result]
print(result)

It'll give you output like

[1,2,3]