https://github.com/python/cpython/commit/bd3add06f6685502da78c52d0bee5b04ca708425
commit: bd3add06f6685502da78c52d0bee5b04ca708425
branch: 3.13
author: Miss Islington (bot) <31488909+miss-isling...@users.noreply.github.com>
committer: terryjreedy <tjre...@udel.edu>
date: 2025-05-14T21:33:38-04:00
summary:
[3.13] gh-133986: Document string split algorithm when sep is None and maxsplit
is 0 (GH-133987) (#133992)
gh-133986: Document string split algorithm when sep is None and maxsplit is 0
(GH-133987)
---------
(cherry picked from commit 3e23047363f384b7254b7af51afe4e353be94167)
Co-authored-by: Joey Smith <joeysm...@gmail.com>
Co-authored-by: Ned Batchelder <n...@nedbatchelder.com>
Co-authored-by: Semyon Moroz <donbar...@proton.me>
files:
M Doc/library/stdtypes.rst
diff --git a/Doc/library/stdtypes.rst b/Doc/library/stdtypes.rst
index 0936be0caaf903..ccaa0efaada7c7 100644
--- a/Doc/library/stdtypes.rst
+++ b/Doc/library/stdtypes.rst
@@ -2133,6 +2133,18 @@ expression support in the :mod:`re` module).
>>> ' 1 2 3 '.split()
['1', '2', '3']
+ If *sep* is not specified or is ``None`` and *maxsplit* is ``0``, only
+ leading runs of consecutive whitespace are considered.
+
+ For example::
+
+ >>> "".split(None, 0)
+ []
+ >>> " ".split(None, 0)
+ []
+ >>> " foo ".split(maxsplit=0)
+ ['foo ']
+
.. index::
single: universal newlines; str.splitlines method
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