From: Cody Maloney <cmaloney@users.noreply.github.com>
Date: Wed, 26 Nov 2025 15:46:25 +0000 (-0800)
Subject: gh-141968: use `bytearray.take_bytes` in `encodings.idna` (#141975)
X-Git-Tag: v3.15.0a3~267
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9ac14288d7147dbbae08a8ffd8581e0f5e6fd706;p=thirdparty%2FPython%2Fcpython.git

gh-141968: use `bytearray.take_bytes` in `encodings.idna` (#141975)
---

diff --git a/Lib/encodings/idna.py b/Lib/encodings/idna.py
index 0c90b4c9fe18..d31ee07ab45b 100644
--- a/Lib/encodings/idna.py
+++ b/Lib/encodings/idna.py
@@ -226,7 +226,8 @@ class Codec(codecs.Codec):
                     offset + exc.end,
                     exc.reason,
                 )
-        return bytes(result+trailing_dot), len(input)
+        result += trailing_dot
+        return result.take_bytes(), len(input)
 
     def decode(self, input, errors='strict'):
 
@@ -311,7 +312,7 @@ class IncrementalEncoder(codecs.BufferedIncrementalEncoder):
 
         result += trailing_dot
         size += len(trailing_dot)
-        return (bytes(result), size)
+        return (result.take_bytes(), size)
 
 class IncrementalDecoder(codecs.BufferedIncrementalDecoder):
     def _buffer_decode(self, input, errors, final):
diff --git a/Misc/NEWS.d/next/Library/2025-11-25-23-35-07.gh-issue-141968.b3Gscp.rst b/Misc/NEWS.d/next/Library/2025-11-25-23-35-07.gh-issue-141968.b3Gscp.rst
new file mode 100644
index 000000000000..32658be5b2f6
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2025-11-25-23-35-07.gh-issue-141968.b3Gscp.rst
@@ -0,0 +1,2 @@
+Remove data copy from :mod:`encodings.idna` :meth:`~codecs.Codec.encode` and
+:meth:`~codecs.IncrementalEncoder.encode` by using :func:`bytearray.take_bytes`.