This is an example usage of the Authomatic Python library. You can see the source code of this app here.
None of your private data will be saved to any kind of persistent storage like database or session.

Error: Failed to obtain request token from http://www.tumblr.com/oauth/request_token! HTTP status code: 401 content: oauth_signature does not match expected value

Authentication

OpenID

GAE OpenID

Mozilla Persona

Authorization