#14236: mention Unicode whitespace in \s documentation.
diff --git a/Lib/re.py b/Lib/re.py
index 3fd59df..45de5a2 100644
--- a/Lib/re.py
+++ b/Lib/re.py
@@ -69,7 +69,10 @@
In string patterns without the ASCII flag, it will match the whole
range of Unicode digits.
\D Matches any non-digit character; equivalent to [^\d].
- \s Matches any whitespace character; equivalent to [ \t\n\r\f\v].
+ \s Matches any whitespace character; equivalent to [ \t\n\r\f\v] in
+ bytes patterns or string patterns with the ASCII flag.
+ In string patterns without the ASCII flag, it will match the whole
+ range of Unicode whitespace characters.
\S Matches any non-whitespace character; equiv. to [^ \t\n\r\f\v].
\w Matches any alphanumeric character; equivalent to [a-zA-Z0-9_]
in bytes patterns or string patterns with the ASCII flag.