python-libburn is a wrapper for libburn and libisofs. It's being developed primarily for redeye, but is freely available for anyone else who would like to use it.
Find it in its place in my subversion repository. You can check it out for later updates (svn up), and easy patch creation (svn diff > libburn.diff), with the command: svn co http://www.tortall.net/svn/mu/trunk/python-libburn. You can build it with the command python setup.py build_ext.