django, django-tagging from debian repositories
The most recent python-django and python-django-tagging packages for debian are in the experimental repositories, but one probably doesn't want to pull all packages from experimental. APT pinning can be used to prioritize certain repositories for certain packages.
First, the repository should be added to /etc/apt/sources.list
deb http://ftp.us.debian.org/debian experimental main contrib non-free
Then in /etc/apt/preferences, each release needs to be given a priority, and certain packages should be pinned to certain releases. In particular, the django-related packages are pinned to experimental, and python-support is pinned to unstable (the django packages require a higher python-support version than is in stable).
Package: *
Pin: release a=stable
Pin-Priority: 900
Package: *
Pin: release a=unstable
Pin-Priority: 800
Package: python-support
Pin: release a=unstable
Pin-Priority: 1001
Package: python-django python-django-tagging
Pin: release a=experimental
Pin-Priority: 1001
Package: *
Pin: release a=experimental
Pin-Priority: 700
As noted in the previous entry, I've stopped using the debian repositories for django packages, but this is how it's done, for reference.