How can I make WSGI(Python) stateful?
Usually, you don't work with "bare" WSGI. You work with web-frameworks, such as Pylons or TurboGears2.
And these contain a session-middleware, based on WSGI - called "Beaker". But if you work with the framework, you don't have to worry about that - you just use it.
But if you insist, you can of course use Beaker standalone.
I'm quite new in Python world. I come from java and ABAP world, where their application server are able to handle stateful request. 
Is it also possible in python using WSGI?
Or stateful and stateless are handled in other layer?