Python loop problem

[buran]

I'm not sure what you mean by this. Sorry super new to Python.

starting from line 12 you have a for loop

for file in files:

you iterate over files and file is a variable that holds each file name as a string. So you can use file and change it as I show you and get new name and save the file. In next iteration of the loop it will hold next file name and so on...