From 8023175afe45ff514443e199c99c7626f79f4142 Mon Sep 17 00:00:00 2001 From: Adam Turner <9087854+AA-Turner@users.noreply.github.com> Date: Tue, 30 Dec 2025 12:57:28 +0000 Subject: [PATCH] gh-130167: Add a What's New entry for changes to ``textwrap.{de,in}dent`` (GH-131924) (cherry picked from commit 7e3a5a7e791b742a74c64810f221854191b94c1f) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com> Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com> Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com> Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com> --- Doc/library/textwrap.rst | 4 ++++ Doc/whatsnew/3.14.rst | 9 +++++++++ 2 files changed, 13 insertions(+) diff --git a/Doc/library/textwrap.rst b/Doc/library/textwrap.rst index a58b460fef409c..3c96c0e9cc0a38 100644 --- a/Doc/library/textwrap.rst +++ b/Doc/library/textwrap.rst @@ -102,6 +102,10 @@ functions should be good enough; otherwise, you should use an instance of print(repr(s)) # prints ' hello\n world\n ' print(repr(dedent(s))) # prints 'hello\n world\n' + .. versionchanged:: 3.14 + The :func:`!dedent` function now correctly normalizes blank lines containing + only whitespace characters. Previously, the implementation only normalized + blank lines containing tabs and spaces. .. function:: indent(text, prefix, predicate=None) diff --git a/Doc/whatsnew/3.14.rst b/Doc/whatsnew/3.14.rst index 67159b1599bef5..5de419da57c744 100644 --- a/Doc/whatsnew/3.14.rst +++ b/Doc/whatsnew/3.14.rst @@ -2265,6 +2265,15 @@ pdb (Contributed by Tian Gao in :gh:`124533`.) +textwrap +-------- + +* Optimize the :func:`~textwrap.dedent` function, improving performance by + an average of 2.4x, with larger improvements for bigger inputs, + and fix a bug with incomplete normalization of blank lines with whitespace + characters other than space and tab. + + uuid ----