I've written a script to provide an RSS feed for jobs listed at http://www.python.org/Jobs.html.
Point your rss reader to http://www.carnageblender.com/public/ss/pythonjobs.tcl to get the feed, or view the screenscraping source at http://www.carnageblender.com/public/ss/pythonjobs.py.
Jonathan Ellis
python-announce-list@python.org