Django-themeit is a project mainly written in Python, based on the View license.
Add themeit.middleware.ThemeitMiddleware to MIDDLEWARE_CLASSES in settings.py
Add themeit to your INSTALLED_APPS to get the themes-models
Add themes.py to your project
themepatterns = { "^127.0.0.1": "1", }
Create theme via admin
Use the templatetag to render the right css in your .html, ex base.html