From 32980fb669a6857276da18895fcc0cb6f6fbb544 Mon Sep 17 00:00:00 2001 From: Hai Shi Date: Fri, 23 Apr 2021 17:10:43 +0800 Subject: [PATCH] bpo-37751: Document codecs.lookup() change in What's New in Python 3.9 (GH-23096) --- Doc/whatsnew/3.9.rst | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Doc/whatsnew/3.9.rst b/Doc/whatsnew/3.9.rst index 602ed065858..70809ff31c7 100644 --- a/Doc/whatsnew/3.9.rst +++ b/Doc/whatsnew/3.9.rst @@ -1114,6 +1114,12 @@ Changes in the Python API compatible classes that don't inherit from those mentioned types. (Contributed by Roger Aiudi in :issue:`34775`). +* :func:`codecs.lookup` now normalizes the encoding name the same way as + :func:`encodings.normalize_encoding`, except that :func:`codecs.lookup` also + converts the name to lower case. For example, ``"latex+latin1"`` encoding + name is now normalized to ``"latex_latin1"``. + (Contributed by Jordon Xu in :issue:`37751`.) + Changes in the C API --------------------