Disclaimer: I'm a web developer for Mozilla!

Note that Playdoh is more specific to Mozilla websites than it should be, specifically around L10n, how it loads libraries, and deployment. It's also not being as actively maintained as it used to be. The big win for us is that it conforms to some requirements we had around deploying Django apps, and makes security reviews on our sites go a lot quicker.

It has some really cool libraries included, like jingo, useful middlewares in commonware, bleach, django-browserid(I maintain this!) and django-waffle.

IMO at the least it's an example of how a production Django application looks (something I appreciated when I was first learning Django) and is worth a look through the code.