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gh-148091: asyncio : clarify Future.cancel(msg) behaviour #148248

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gh-148091: asyncio : clarify Future.cancel(msg) behaviour #148248

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asyncio : clarify Future.cancel(msg) behaviour
manoj-k-m Apr 8, 2026
60b2aed
fix lint: wrap doc line
manoj-k-m Apr 8, 2026
a670ced
fix lint : extra space after 'Future'
manoj-k-m Apr 8, 2026
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4 changes: 4 additions & 0 deletions Lib/asyncio/futures.py
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Expand Up @@ -159,6 +159,10 @@ def cancel(self, msg=None):
If the future is already done or cancelled, return False. Otherwise,
change the future's state to cancelled, schedule the callbacks and
return True.
The optional argument *msg* is passed as the argument to the
asyncio.CancelledError exception raised when a cancelled Future
is awaited. It can be any object.
"""
self.__log_traceback = False
if self._state != _PENDING:
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