[issue17349] wsgiref.simple_server.demo_app is not PEP-3333 compatible

[Ezio Melotti]

Changes by Ezio Melotti <ezio.melotti at gmail.com>:


----------
stage:  -> patch review

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue17349>
_______________________________________