[docs] [issue12067] Doc: remove errors about mixed-type comparisons.

Changes by Andy Maier <andreas.r.maier@gmx.de>: Added file: http://bugs.python.org/file38303/issue12067-expressions-py3.5_v14.diff _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue12067> _______________________________________