So you want to see what all the fuss around Django is about? To get the latest bleeding edge snapshot (as discussed here, here, here, here, here, here, here and here) you just need to run these commands (as root), per the official install instructions:
/usr/bin/svn co http://code.djangoproject.com/svn/django/trunk/ /usr/local/django-trunk ln -s /usr/local/django-trunk/django /Library/Python/2.5/site-packages/django ln -s /usr/local/django-trunk/django/bin/django-admin.py /usr/local/bin
For the lazy, get root (eg sudo -s) and run:
curl https://s3.amazonaws.com/media.samj.net/devel/django.sh | sh
If it’s already there then this script will update to the latest revision.