https://github.com/python/cpython/commit/58d92ac773a30cf4670e9931d67f04ef0d06d50e
commit: 58d92ac773a30cf4670e9931d67f04ef0d06d50e
branch: 3.15
author: Miss Islington (bot) <[email protected]>
committer: serhiy-storchaka <[email protected]>
date: 2026-07-02T07:26:50Z
summary:

[3.15] gh-79964: Clarify the imaplib fetch example in the docs (GH-152780) 
(GH-152859)

A FETCH response may contain additional or unsolicited data, so the
message is not always data[0][1].
(cherry picked from commit 50ae0be74988564fb09746a49eb4b8f8e740f3c3)

Co-authored-by: Serhiy Storchaka <[email protected]>
Co-authored-by: Claude Opus 4.8 (1M context) <[email protected]>

files:
M Doc/library/imaplib.rst

diff --git a/Doc/library/imaplib.rst b/Doc/library/imaplib.rst
index b002f4978123e6d..cf475734636a20d 100644
--- a/Doc/library/imaplib.rst
+++ b/Doc/library/imaplib.rst
@@ -725,3 +725,10 @@ retrieves and prints all messages::
    M.close()
    M.logout()
 
+.. note::
+
+   A ``FETCH`` response may contain additional or unsolicited data
+   (see :rfc:`3501`, section 7.4.2),
+   so production code should inspect the whole response
+   rather than rely on ``data[0][1]``.
+

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