bpo-33952: Fix typo in str.upper() documentation (GH-7898) (GH-7903)
(cherry picked from commit 4a6e746079441d18c30e3c4d014f106faaf7792f)
Co-authored-by: Andrés Delfino <adelfino@gmail.com>
diff --git a/Doc/library/stdtypes.rst b/Doc/library/stdtypes.rst
index 7cab670..03f9159 100644
--- a/Doc/library/stdtypes.rst
+++ b/Doc/library/stdtypes.rst
@@ -2051,7 +2051,7 @@
.. method:: str.upper()
Return a copy of the string with all the cased characters [4]_ converted to
- uppercase. Note that ``str.upper().isupper()`` might be ``False`` if ``s``
+ uppercase. Note that ``s.upper().isupper()`` might be ``False`` if ``s``
contains uncased characters or if the Unicode category of the resulting
character(s) is not "Lu" (Letter, uppercase), but e.g. "Lt" (Letter,
titlecase).