python3使用urllib示例取googletranslate(谷歌翻译)

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# File Name : gt1.py
# Purpose :
# Creation Date : 1390366260
# Last Modified : Wed 22 Jan 2014 06:14:11 PM CST
# Release By : Doom.zhou


import urllib.request
import sys
typ = sys.getfilesystemencoding()
def translate(querystr, to_l="zh", from_l="en"):
 '''for google tranlate by doom
 '''
 C_agent = {'User-Agent': "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.165063 Safari/537.36 AppEngine-Google."}
 flag = 'class="t0">'
 tarurl = "http://translate.google.com/m?hl=%s&sl=%s&q=%s \
 " % (to_l, from_l, querystr.replace(" ", "+"))
 request = urllib.request.Request(tarurl, headers=C_agent)
 page = str(urllib.request.urlopen(request).read().decode(typ))
 target = page[page.find(flag) + len(flag):]
 target = target.split("<")[0]
 return target
print(translate("Hello world"))

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