googletranslate.py

import urllib
import re
import uuid

from django.utils import simplejson


def google_translate(text, source='en', target='fr'):
    subs = {}
    for arg in re.findall('(\{.+?\})', text):
        sub = str(uuid.uuid4()).replace('-', '')
        subs[sub] = arg
        text = text.replace(arg, sub)
        
    params = urllib.urlencode({
        'v': '1.0',
        'q': text,
        'langpair': source + '|' + target,
        'format': 'text'
    })
    opener = urllib.FancyURLopener()
    opener.addheader('Referer', 'http://www.caterpi.com/')
    request = opener.open('http://ajax.googleapis.com/ajax/services/language/translate', params)
    data = simplejson.loads(request.read())
    
    response = data.get('responseData')
    if response:
        translation = response.get('translatedText')
        for sub, arg in subs.items():
            translation = translation.replace(sub, arg)
        return translation