[issue29302] add contextlib.AsyncExitStack

[Yury Selivanov]

Yury Selivanov <yselivanov at gmail.com> added the comment:

Thank you Alexander and Ilya!

----------
resolution:  -> fixed
stage: patch review -> resolved
status: open -> closed

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue29302>
_______________________________________