google.appengine.api.users package provides the following exception classes:
- exception Error()
This is the base class for all exceptions in this package.
- exception UserNotFoundError()
Raised by the User constructor if no email_address is provided and the current user is not logged in.
- exception RedirectTooLongError()
- exception NotAllowedError()
federated_identityparameter was given to create_login_url(), but
Federeated Loginis not set. If you are getting this error you may need to change the
Federated Loginin the Application Settings.