python requests Authorization Bearer验证请求接口

python requests Authorization Bearer验证请求接口：

   	access_token = get_sdn_token()
    list_accounts_url = 'https://api.xxxxxx.xxxx'
    headers = {'Authorization':'Bearer '+access_token}
    response = requests.get(url=list_accounts_url,headers=headers)
    customer_list = response.json()