From: Serhiy Storchaka <storchaka@gmail.com>
Date: Mon, 20 Oct 2025 17:05:42 +0000 (+0300)
Subject: [3.14] gh-63161: Fix test_source_encoding when stderr is StringIO (GH-140361)
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=abb3b3142b2ac25e034a1d52fcb08f8b71b1e023;p=thirdparty%2FPython%2Fcpython.git

[3.14] gh-63161: Fix test_source_encoding when stderr is StringIO (GH-140361)
---

diff --git a/Lib/test/test_source_encoding.py b/Lib/test/test_source_encoding.py
index a285fc2ceef2..36c8d87182dc 100644
--- a/Lib/test/test_source_encoding.py
+++ b/Lib/test/test_source_encoding.py
@@ -521,7 +521,7 @@ class FileSourceEncodingTest(AbstractSourceEncodingTest, unittest.TestCase):
             line = src.splitlines()[lineno-1].decode(errors='replace')
             if lineno == 1:
                 line = line.removeprefix('\ufeff')
-            line = line.encode(sys.stderr.encoding, sys.stderr.errors)
+            line = line.encode(sys.__stderr__.encoding, sys.__stderr__.errors)
             self.assertIn(line, err)