The aim of django-cumulus is to provide a set of tools to utilize Rackspace Cloud Files through Django. It currently includes a custom file storage class, CloudFilesStorage.
This fork includes support for uk auth_url, add to your cumulus settings in settings.py.
CUMULUS_AUTH_URL = 'uk_authurl' # uk_authurl or us_authurl defaults to us
For full documentation, go to http://django-cumulus.rtfd.org/.