How to use session on Google app engine

I'm building an application using Google app engine with python, and I'm stuck with making sessions. Is there any app that already does th开发者_运维知识库at for app engine? Thank you.

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I recommend gae-sessions. The source includes demos which show how to use it, including how to integrate with the Users API or RPX/JanRain.

Disclaimer: I wrote gae-sessions, but for an informative comparison of it with alternatives, read this article.