Pronunciation script in python

Frequently i had a visits to google to search for some word pronunciations.
So I wrote this small script to save my time.
you need to install mpg123 before you run this script
by

$ sudo apt-get install mpg123

spellit.py

#!/usr/bin/python

import os
import sys

url = 'http://ssl.gstatic.com/dictionary/static/sounds/de/0/'
if len(sys.argv[:]) != 2:
 print 'usage: ./spellit.py word'
 exit(0)

word = sys.argv[1]

final = url+word+'.mp3'
os.system('mpg123 -q %s'% final)