seriesFormatter/main.py

#!/usr/bin/env python
 # -*- coding: utf-8 -*-

import os, sys, re

files = [f for f in os.listdir('.') if os.path.isfile(f) and f.startswith(sys.argv[1])]
for f in files:
    print f
    match = re.match(r'([a-zA-Z.]*).(S[0-9]*E[0-9]*).([a-zA-Z0-9äöüÄÖÜß\-\.\,\w]*)', f)
    newName = match.group(1) + "-" + match.group(2) + "-" + match.group(3)
    print newName
    os.rename(f, newName)
    print "\n"