[3.13] Document that return-less user-defined functions return None (GH-126769) (#126822)
Document that return-less user-defined functions return None (GH-126769)
(cherry picked from commit e0692f11650acb6c2eed940eb94650b4703c072e)
Co-authored-by: John Marshall <jmarshall@hey.com>
Co-authored-by: Andrew Svetlov <andrew.svetlov@gmail.com>
Co-authored-by: Carol Willing <carolcode@willingconsulting.com>
diff --git a/Doc/reference/expressions.rst b/Doc/reference/expressions.rst
index decde0d..3eaceae 100644
--- a/Doc/reference/expressions.rst
+++ b/Doc/reference/expressions.rst
@@ -1156,7 +1156,8 @@
first thing the code block will do is bind the formal parameters to the
arguments; this is described in section :ref:`function`. When the code block
executes a :keyword:`return` statement, this specifies the return value of the
- function call.
+ function call. If execution reaches the end of the code block without
+ executing a :keyword:`return` statement, the return value is ``None``.
a built-in function or method:
.. index::
