Converting parts of a list to int for sorting

[AlekseyPython]

If your txt- file look like this (you made a mistake in the last line, forgetting the number):

13,pops
15,bubble
150,nano
33,party
11,pokey

then you can do this:

def getIt():
    with open("Text File.txt", "r")as file:
        data = file.read().splitlines()
 
    data.sort(key=lambda x: int(x.split(",")[0]), reverse = True)
    
    with open("Text File.txt", "w")as file:
        for element in data:
            file.write(element + '\n')

getIt()

Output:
150,nano
33,party
15,bubble
13,pops
11,pokey