[docs] [issue13525] Tutorial: Example of Source Code Encoding triggers error

Changes by Ezio Melotti <ezio.melotti@gmail.com>: ---------- nosy: +ezio.melotti stage: -> needs patch versions: +Python 2.7, Python 3.3 _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue13525> _______________________________________