gh-69619: Clarify whitespace definition in str.strip docs (GH-150021)

Daniil20xx · miss-islington · commit a315c8aca04d · 2026-05-19T01:11:04.000Z
(cherry picked from commit 17eb17d) Co-authored-by: Daniil <d.mayorov@innopolis.university>
diff --git a/Doc/library/stdtypes.rst b/Doc/library/stdtypes.rst
@@ -2592,6 +2592,8 @@ expression support in the :mod:`re` module).
    The *chars* argument is not a prefix or suffix; rather, all combinations of its
    values are stripped.
 
+   Whitespace characters are defined by :meth:`str.isspace`.
+
    For example:
 
    .. doctest::
