[docs] [issue19833] asyncio: patches to document EventLoop and add more examples

[STINNER Victor]

STINNER Victor added the comment:

I documented many new classes. I read the source code and copied classes to extract docstrings.

Instead of BaseXXX classes, it's maybe better to document AbstractXXX classes.

----------

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue19833>
_______________________________________