[issue8800] add threading.RWLock

[Antoine Pitrou]

Antoine Pitrou added the comment:

On the naming front: shorthands like "Shrd" and "Excl" are a bit frown upon. Since "SharedExclusiveLock" is on the long side, I would suggest calling the API "SELock".

----------

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue8800>
_______________________________________