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bpo-46829: Deprecate passing a message into Future.cancel() and Task.cancel() (GH-31840)

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After a long deliberation we ended up feeling that the message argument for Future.cancel(), added in 3.9, was a bad idea, so we're deprecating it in 3.11 and plan to remove it in 3.13.
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Andrew Svetlov 2022-03-23 17:43:05 +02:00 • committed by GitHub
parent 624e3986fb
commit 0360e9f346
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9 changed files with 106 additions and 17 deletions
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5
Lib/asyncio/tasks.py
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@ -207,6 +207,11 @@ class Task(futures._PyFuture): # Inherit Python Task implementation
This also increases the task's count of cancellation requests.
"""
if msg is not None:
warnings.warn("Passing 'msg' argument to Task.cancel() "
"is deprecated since Python 3.11, and "
"scheduled for removal in Python 3.14.",
DeprecationWarning, stacklevel=2)
self._log_traceback = False
if self.done():
return False