Rename Files with Python

Simple wee python script for renaming files in a directory.

I had a bunch of mp4 files that had a reference code at the end rather than the front so renaming to put the reference code at the front would keep them in order e.g. myfile-m6-03.mp4 to become 6-03-myfile-m6-03.mp4

 #!/usr/bin/env python
 from os import rename
 from glob import glob 

 for file in glob('*.mp4'):
     extension = file[-8:]
     mod_code = extension[:4]
     new_file_name = "%s-%s" % (mod_code, file)
     print("Moving %s to %s" % (file, new_file_name))
     rename(file, new_file_name)