I created a Django application called "site" in my project, and although everything was working perfectly locally with the Google App Engine SDK and Google App Engine Django Helper but when I deployed, I got an ImproperlyConfigured error.
Changing the name of the application fixed the issue.
Please star Issue 404 to get OpenID support on Google App Engine.
(For some strange reason, you need to log in with your Google account to something called Google Sites in order to see the page.)
I love Python's doctests. Basically, you test out your functions in the interactive shell and copy the results into the comments for a function. That's it! So simple.