Multithreaded Django
From Django In Production
Multithreaded Dev Server
Django's built in development server does not currently support multithreading. It is a single user development server for use on localhost, and should never be used in a production scenario.
However, there is a long running ticket open about providing multithreaded support in the dev server. This ticket contains a patch which allows the dev server to handle multiple concurrent requests. Remember however, that this does not change the fact that the built in dev server is not a production standard server.

