Document that return-less user-defined functions return None (GH-126769)

(cherry picked from commit e0692f1) Co-authored-by: John Marshall <[email protected]> Co-authored-by: Andrew Svetlov <[email protected]> Co-authored-by: Carol Willing <[email protected]>
python · Nov 14, 2024 · 37f8a09 · 37f8a09
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commit 37f8a09
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/Doc/reference/expressions.rst b/Doc/reference/expressions.rst
@@ -1149,7 +1149,8 @@ a user-defined function:
    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::