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gh-98703: Fix asyncio proactor_events calling _call_connection_lost multiple times (GH-98704)

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Co-authored-by: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com>
(cherry picked from commit 8a755423eb)

Co-authored-by: Ken Jin <kenjin@python.org>
This commit is contained in:
Miss Islington (bot) 2022-10-26 20:03:58 -07:00 • committed by GitHub
parent 5074c35c2a
commit bb80f6ad92
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2
Lib/asyncio/proactor_events.py
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@ -152,6 +152,8 @@ class _ProactorBasePipeTransport(transports._FlowControlMixin,
self._loop.call_soon(self._call_connection_lost, exc)
def _call_connection_lost(self, exc):
if self._called_connection_lost:
return
try:
self._protocol.connection_lost(exc)
finally:

2
Misc/NEWS.d/next/Library/2022-10-26-07-51-55.gh-issue-98703.0hW773.rst Normal file
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@ -0,0 +1,2 @@
Fix :meth:`asyncio.StreamWriter.drain` to call ``protocol.connection_lost``
callback only once on Windows.