[issue13424] Add examples for open’s new opener argument

[Éric Araujo]

Éric Araujo added the comment:

Fixed, thanks!

----------
resolution:  -> fixed
stage: needs patch -> committed/rejected
status: open -> closed
versions: +Python 3.4

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue13424>
_______________________________________