googl.py

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

# 改変前ソース 
#  Pythonを使ってgoo.glの短縮URLを得る | TRIVIAL TECHNOLOGIES on CLOUD
#  http://coreblog.org/ats/pythonic-way-of-obtaining-shorten-url-by-using-goo_gl
def google_shorten(url):
  from re import match
  from urllib2 import urlopen, Request, HTTPError, quote
  try:
    from json import loads
  except ImportError:
    try:
      from simplejson import loads
    except ImportError:
      # Google Appengine offers simplejson via django
      from django.utils import simplejson as json

  try:
    req=Request('http://goo.gl/api/url',
                'url=%s'%quote(url), {'User-Agent':'toolbar'})
    r=urlopen(req)
    j = loads(r.read())
    return j['short_url']
  except HTTPError, e:
    raise Exception('Unknown eror forming short URL.')

if __name__ == '__main__':
  from sys import argv
  print google_shorten(argv[1])