Python在URL中加入新参数

import urllib
import urlparse

def url_add_params(url, **params):
    """ 在网址中加入新参数 """
    pr = urlparse.urlparse(url)
    query = dict(urlparse.parse_qsl(pr.query))
    query.update(params)
    prlist = list(pr)
    prlist[4] = urllib.urlencode(query)
    return urlparse.ParseResult(*prlist).geturl()



if __name__ == "__main__":
    url = 'http://bbs.163.com/viewthread.php?tid=1660&rpid=5798&ordertype=0&page=1#pid5798'
    print url_add_params(url, token=123, site="bbs")