[docs] [issue11163] iter() documentation code doesn't work

Changes by Terry J. Reedy <tjreedy@udel.edu>: ---------- versions: +Python 2.7, Python 3.1, Python 3.2, Python 3.3 -Python 2.6 _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue11163> _______________________________________