Make the hint about the None default less ambiguous.
diff --git a/Lib/string.py b/Lib/string.py
index ce392be..f8b4490 100644
--- a/Lib/string.py
+++ b/Lib/string.py
@@ -282,7 +282,7 @@
Return a list of the words in the string s, using sep as the
delimiter string. If maxsplit is given, splits at no more than
maxsplit places (resulting in at most maxsplit+1 words). If sep
- is not specified or None, any whitespace string is a separator.
+ is not specified or is None, any whitespace string is a separator.
(split and splitfields are synonymous)
diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index 722b427..f238f44 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -5987,7 +5987,7 @@
\n\
Return a list of the words in S, using sep as the\n\
delimiter string. If maxsplit is given, at most maxsplit\n\
-splits are done. If sep is not specified or None,
+splits are done. If sep is not specified or is None,
any whitespace string is a separator.");
static PyObject*