Python自动重试HTTP连接装饰器

#-*- coding: utf-8 -*-  #all decorators in this tool file #author: orangleliu  ############################################################ #http连接有问题时候，自动重连 def conn_try_again(function):   RETRIES = 0   #重试的次数   count = {"num": RETRIES}   def wrapped(*args, **kwargs):     try:       return function(*args, **kwargs)     except Exception, err:       if count['num'] < 2:         count['num'] += 1         return wrapped(*args, **kwargs)                else:         raise Exception(err)   return wrapped 

@conn_try_again def post_query_bandwidth_for_bandwidth(self, contract_no, data_month, product_code):   #根据webluker接口情况获取计费数据     try:     post_data = {'contract':contract_no, 'month': data_month, 'code':product_code}     params = urllib.urlencode(post_data)     response = urllib2.urlopen(WEBLUKER_BANDWITH_API + "?" +params)     billdata = {}     billdata = response.read()     if not billdata:       billdata = {}     return billdata   except Exception, err:     err = u'与webluker接口间通信异常'     raise Exception(err)