Replacing Filename characters with python

Question

I have some code which adds the word \"_manual\" onto the end of a load of filenames.. I need to change the script so that it deletes the last two letters of the filename (ES)

Answer 1

Try this:

import os
pathiter = (os.path.join(root, filename)
    for root, _, filenames in os.walk(folder)
    for filename in filenames
)
for path in pathiter:
    newname =  path.replace('ES.txt', '_ES_manual.txt')
    if newname != path:
        os.rename(path,newname)