gh-137988: Fix const description in argparse.add_argument() docs (#138315)

PrinceNaroliya · savannahostrowski · web-flow · commit 37425fe9fb77 · 2025-09-17T15:15:57.000Z
Co-authored-by: Savannah Bailey &lt;savannahostrowski@gmail.com&gt;
diff --git a/Doc/library/argparse.rst b/Doc/library/argparse.rst
@@ -981,8 +981,8 @@ the various :class:`ArgumentParser` actions.  The two most common uses of it are
   (like ``-f`` or ``--foo``) and ``nargs='?'``.  This creates an optional
   argument that can be followed by zero or one command-line arguments.
   When parsing the command line, if the option string is encountered with no
-  command-line argument following it, the value of ``const`` will be assumed to
-  be ``None`` instead.  See the nargs_ description for examples.
+  command-line argument following it, the value from ``const`` will be used.
+  See the nargs_ description for examples.
 
 .. versionchanged:: 3.11
    ``const=None`` by default, including when ``action='append_const'`` or
