Python请求在发布数据时发出415错误

Question

将数据发布到服务器时，我收到415错误。这是我的代码我怎么能解决这个问题。提前致谢！

import requests
import json
from requests.auth import HTTPBasicAuth
#headers = {'content-type':'application/javascript'}
#headers={'content-type':'application/json', 'Accept':'application/json'}
url = 'http://IPadress/kaaAdmin/rest/api/sendNotification'
data = {"name": "Value"}
r = requests.post(url, auth=HTTPBasicAuth('shany.ka', 'shanky1213'),json=data)
print(r.status_code)