I am try to use python's package ebaysdk.trading to use GetSessionID to get a session id in order to derive a user token but failed:
ebaysdk.exception.ConnectionError: 'GetSessionID: Class: RequestError, Severity: Error, Code: 931, Auth token is invalid. Validation of the authentication token in API request failed.'
what's the problem and any tutorials can i get to connect api to ebaysdk using python myself ?