https://github.com/python/cpython/commit/1d2d62c15ef5fef2e8f914245b935cf85ffbf855
commit: 1d2d62c15ef5fef2e8f914245b935cf85ffbf855
branch: 3.13
author: Miss Islington (bot) <[email protected]>
committer: kumaraditya303 <[email protected]>
date: 2025-01-09T10:16:59Z
summary:

[3.13] gh-126137: improve docs for `loop.add_reader` and `loop.add_writer` 
(GH-128666) (#128667)

gh-126137: improve docs for `loop.add_reader` and `loop.add_writer` (GH-128666)
(cherry picked from commit b2adf556747d080f04b53ba4063b627c2dbe41d1)

Co-authored-by: Kumar Aditya <[email protected]>

files:
M Doc/library/asyncio-eventloop.rst

diff --git a/Doc/library/asyncio-eventloop.rst 
b/Doc/library/asyncio-eventloop.rst
index 586623b5a78bb3..8027d3525e5999 100644
--- a/Doc/library/asyncio-eventloop.rst
+++ b/Doc/library/asyncio-eventloop.rst
@@ -960,6 +960,9 @@ Watching file descriptors
    invoke *callback* with the specified arguments once *fd* is available for
    reading.
 
+   Any preexisting callback registered for *fd* is cancelled and replaced by
+   *callback*.
+
 .. method:: loop.remove_reader(fd)
 
    Stop monitoring the *fd* file descriptor for read availability. Returns
@@ -971,6 +974,9 @@ Watching file descriptors
    invoke *callback* with the specified arguments once *fd* is available for
    writing.
 
+   Any preexisting callback registered for *fd* is cancelled and replaced by
+   *callback*.
+
    Use :func:`functools.partial` :ref:`to pass keyword arguments
    <asyncio-pass-keywords>` to *callback*.
 

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