Cal Leeming added the comment: Many thanks for your lengthy response David. Sorry, my initial bug report stated it was Python 2.7. The tests I performed were actually on Python 2.6.6. I will take a look at how to contribute documentation updates, and once I've familiarized myself with it I'll submit a patch for review. Thanks again ---------- _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue16609> _______________________________________