https://github.com/python/cpython/commit/27a2152a9b976ea09bd6de02f44acef29581bd36
commit: 27a2152a9b976ea09bd6de02f44acef29581bd36
branch: 3.14
author: Miss Islington (bot) <[email protected]>
committer: hugovk <[email protected]>
date: 2025-08-27T17:01:55+03:00
summary:

[3.14] gh-44538: Mention nested classes/functions in doctest docs (GH-137870) 
(#137918)

Co-authored-by: Bartosz SÅ‚awecki <[email protected]>

files:
M Doc/library/doctest.rst

diff --git a/Doc/library/doctest.rst b/Doc/library/doctest.rst
index 82e570a2a85cd7..61463d6adcd143 100644
--- a/Doc/library/doctest.rst
+++ b/Doc/library/doctest.rst
@@ -350,6 +350,13 @@ searches them recursively for docstrings, which are then 
scanned for tests.
 Any classes found are recursively searched similarly, to test docstrings in
 their contained methods and nested classes.
 
+.. note::
+
+   ``doctest`` can only automatically discover classes and functions that are
+   defined at the module level or inside other classes.
+
+   Since nested classes and functions only exist when an outer function
+   is called, they cannot be discovered. Define them outside to make them 
visible.
 
 .. _doctest-finding-examples:
 

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