python get url 请求 header

import time
import requests
import logging

    app.logger.info('info ...')
 url = 'http://asdatest.com?a=1&b=2'
     headers = { 'org': '22222' }
    print('url: --- ', url)
    r = requests.get(url,headers=headers)
    #r = requests.get(url)
    lis = r.json()['data']