http请求 request失败自动重新尝试代码示例

#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_againdef http_request(session, method, url, data, header = header):  try:    if method == 'GET':      r = session.get(url, data = data, headers = header)      return r    elif method == 'POST':      r = session.post(url, data = data, headers = header)      return r    else:      return None  except Exception as e:    logging.exception('[online_statistics] http request connection error %s'% e)