Hello, I'm trying to rename files that have endings as such: blah.mp3.bunchofchars . I'm trying to strip off the extra chars and just have *.mp3. The files were fed into a list via the os.listdir() function. The searching I've done so far has come up empty. Should I be using the string module for something like this or is this a simple slice operation I'm missing? Any help is greatly appreciated. Thanks, Gus