引入库：

from urllib import quote, urlencode

import urllib2 import time import uuid import hmac, hashlib

关键代码：

           items=request.params.get('items','')

           gid=request.params.get('gid','')            platform=request.params.get('platform','')            game=request.params.get('app','')            sig=request.params.get('sig','')          

           KEY = 'dX^&c'     #双方规定的密钥

            params={'items':items}             params = urllib.urlencode(params)     #url转码             params=params+'&gid=%s&platform=%s&app=%s' % (gid,platform,game)  #拼凑对接字符串                         h = hmac.new(KEY, params, hashlib.sha1)             s = h.digest()             signature = s.encode('base64').rstrip()    #生成签名                                       if sig != signature:           #判断双方签名                 ret['ret']= 3                 ret['msg']='sig not match'                 return ujson.dumps(ret)