HTTPError using Flukso Credentials


I'm trying out tmpo-py and when using the Flukso credentials my script throws the following exeption:

Exception has occurred: HTTPError 401 Client Error: Unauthorized for url:

This happens in the following line:

import tmpo
s = tmpo.Session()
s.debug = True
s.add("fed676021dacaaf6a12a8dda7685be34", "b371402dc767cc83e41bc294b63f9586")
s.sync() #<-- HERE

The same issue when using a sensorID and token from my flukso counter.