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[3.12] gh-109538: Catch closed loop runtime error and issue warning (GH-111983) (#112142)

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* [3.12] gh-109538: Avoid RuntimeError when StreamWriter is deleted with closed loop (GH-111983)

Issue a ResourceWarning instead.

(cherry picked from commit e0f5127975)
gh-109538: Avoid RuntimeError when StreamWriter is deleted with closed loop (#111983)

Issue a ResourceWarning instead.

Co-authored-by: Hugo van Kemenade <hugovk@users.noreply.github.com>
(cherry picked from commit e0f5127975)

* Fix missing warnings import
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DPR 2023-11-17 01:40:55 +08:00 • committed by GitHub
parent 3f2cdbe666
commit 2ef3676a5b
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3 changed files with 66 additions and 2 deletions
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8
Lib/asyncio/streams.py
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@ -5,6 +5,7 @@ __all__ = (
import collections
import socket
import sys
import warnings
import weakref
if hasattr(socket, 'AF_UNIX'):
@ -405,8 +406,11 @@ class StreamWriter:
def __del__(self):
if not self._transport.is_closing():
self.close()
if self._loop.is_closed():
warnings.warn("loop is closed", ResourceWarning)
else:
self.close()
warnings.warn(f"unclosed {self!r}", ResourceWarning)
class StreamReader: