Utility to sanitize some movie filenames

sanitize.py

#!/usr/bin/python3
# -*- coding: utf8 -*-

"""Utility to sanitize some warez movies filename"""
__author__ = "Felix Yadomi"
__version__ = "0.0.3"
__email__ = "dev.yadomi@gmail.com"

import sys, os, re
from titlecase import titlecase

def sanitize(filename):
  title = []
  warez = ['truefrench','fansub','bluray','720', '720p', 'x264','french', 'fr', 'divx','hdcam','xvid','appz','bdrip','board','cam','dvd','dvd-r','dvdrip','dupecheck','fake','fs','gamez','hddvd','hddvdrip','hdrip','hdtv','pdtv','internal','int','keygen','leecher','limited','nuke','proper','repack','retail','rip','rip','screener','serial','subforced','hardsub','stv','telecine','telesync','tvrip','unrated','vhsrip','vo','vost','vostfr','workprint','french','wp','subbed','unsubbed', 'r5', 'r6', 'md']  
  filename = re.sub('[\(\[].*?[\)\]]', '', os.path.splitext(filename)[0].strip().lower())
  match = re.search('\d{4}', filename)
  year = match.group(0) if match else False
  filename = re.sub('[^\w]|[\_]', ' ', filename).split()
  filename.remove(year)
  for word in filename:
    if word not in warez:
      title.append(word)
  if year:
    title.append( '(' + year + ')' )
  title = ' '.join(title)
  return titlecase(title)

def usage():
  print('usage: ' + sys.argv[0] + ' target [--dry]')

args = sys.argv[1:]
if ( len(args) > 2) or len(args) < 1:
  usage()
  sys.exit()

f = os.path.split(sys.argv[1])
if not f[0]:
  filepath = '.'
else:
  filepath = f[0]

filename  = os.path.splitext(os.path.basename(sys.argv[1]))[0]
extension = os.path.splitext(sys.argv[1])[1]

newname = sanitize(filename)
print(newname + extension)

if '--dry' not in sys.argv:
  os.rename(filepath + '/' + filename + extension, filepath + '/' + newname + extension)