Django-ga-tracking is a project mainly written in Python, it's free.
TIny Django template tag library for generating Google Analytics tracking URL's
This is a tiny template tag library automating the generation of Google Analytics tracking URL's, as described in: http://www.google.com/support/googleanalytics/bin/answer.py?hl=en&answer=55578
Usage: {% load ga-tracking %}{% tracking_url "source" "medium" "term" "content" "campaign" %}