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gh-114177: avoid calling connection lost callbacks when loop is already closed in asyncio subprocess (#134508)

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Kumar Aditya 2025-05-23 10:03:16 +05:30 • committed by GitHub
parent 8dbc119719
commit 5804ee7b46
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2 changed files with 7 additions and 1 deletions
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7
Lib/asyncio/base_subprocess.py
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@ -104,7 +104,12 @@ class BaseSubprocessTransport(transports.SubprocessTransport):
for proto in self._pipes.values(): for proto in self._pipes.values():
if proto is None: if proto is None:
continue continue
proto.pipe.close() # See gh-114177
# skip closing the pipe if loop is already closed
# this can happen e.g. when loop is closed immediately after
# process is killed
if self._loop and not self._loop.is_closed():
proto.pipe.close()
if (self._proc is not None and if (self._proc is not None and
# has the child process finished? # has the child process finished?

1
Misc/NEWS.d/next/Library/2025-05-22-13-10-32.gh-issue-114177.3TYUJ3.rst Normal file
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@ -0,0 +1 @@
Fix :mod:`asyncio` to not close subprocess pipes which would otherwise error out when the event loop is already closed.