import http.client,
import json
  def selectAuth(self,sn,dev_model):
    try:
      params = json.dumps({"TYPE": "PRE-FILTER_UPDATE",
           "DATA": [{"SN": str(sn.upper()), "MODEL": str(dev_model)}]})
      log.debug(params)
      headers = {"Content-type": "text/json", "Accept": "text/plain"}
      conn = http.client.HTTPConnection("65.33.44.43:509", 509)
      conn.request('POST', '/pre/update', params, headers)
      response = conn.getresponse()
      code = response.status
      reason=response.reason
      log.debug(code)
      log.debug(reason)
      data = json.loads(response.read().decode('utf-8'))
      conn.close()
    except Exception as e:
      data = e
      log.error(e)
    log.debug('data:{}，{}'.format(data,type(data)))
    return data