From a78fc89d9de1751bc2bcabf4a831a72f62d3a152 Mon Sep 17 00:00:00 2001
From: Manoj K M <136242596+manoj-k-m@users.noreply.github.com>
Date: Thu, 9 Apr 2026 19:41:31 +0530
Subject: [PATCH] gh-148091: clarify asyncio.Future.cancel(msg) behaviour
 (GH-148248) (cherry picked from commit
 2acb8d9257c4f5049777d9d462092373b0b3feca)

Co-authored-by: Manoj K M <136242596+manoj-k-m@users.noreply.github.com>
---
 Doc/library/asyncio-future.rst | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Doc/library/asyncio-future.rst b/Doc/library/asyncio-future.rst
index 4b69e569523c58..43977de273e61f 100644
--- a/Doc/library/asyncio-future.rst
+++ b/Doc/library/asyncio-future.rst
@@ -196,6 +196,10 @@ Future Object
       Otherwise, change the Future's state to *cancelled*,
       schedule the callbacks, and return ``True``.
 
+      The optional string argument *msg* is passed as the argument to the
+      :exc:`CancelledError` exception raised when a cancelled Future
+      is awaited.
+
       .. versionchanged:: 3.9
          Added the *msg* parameter.