Get 401 Unauthorized with Python Request

Ok, maybe I will have more luck with this

I'm tring the following code it is returning 401 Unauthorized. What am I missing? At this point due to the total lack of any documentation , I can only guess. Need documentation!

Thanks Again x2

import requests
from requests.auth import HTTPDigestAuth
import json

url = 'https://webapi.teamviewer.com/api/v1/users?full_list=true'

#401 Unauthorized
headers = {"content-type": "application/json", "Authorization": "Bearer xxxxxxxxxxx"}
r= requests.get(url, headers=headers)
print(r)