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

you could do:

for filename in filenames:
    print(filename) #should display AC-5400ES.txt
    filename = filename.replace("ES.txt","ES_manual.txt")
    print(filename) #should display AC-5400ES_manual.txt
    fullpath = os.path.join(root, filename)
    os.rename(fullpath, filename)