From: Semyon Moroz <donbarbos@proton.me>
Date: Fri, 5 Sep 2025 11:29:46 +0000 (+0000)
Subject: gh-131178: Fix `test_unknown_flag` for platform CLI (#137816)
X-Git-Tag: v3.15.0a1~483
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=e76464d161f2e7f2c27c84f8de4de5f88f025973;p=thirdparty%2FPython%2Fcpython.git

gh-131178: Fix `test_unknown_flag` for platform CLI (#137816)
---

diff --git a/Lib/test/test_platform.py b/Lib/test/test_platform.py
index 601d450b7de9..c07f96aecf4a 100644
--- a/Lib/test/test_platform.py
+++ b/Lib/test/test_platform.py
@@ -770,13 +770,14 @@ class CommandLineTest(unittest.TestCase):
             platform._main(args=flags)
         return output.getvalue()
 
+    @support.force_not_colorized
     def test_unknown_flag(self):
+        output = io.StringIO()
         with self.assertRaises(SystemExit):
-            output = io.StringIO()
             # suppress argparse error message
             with contextlib.redirect_stderr(output):
                 _ = self.invoke_platform('--unknown')
-            self.assertStartsWith(output, "usage: ")
+        self.assertStartsWith(output.getvalue(), "usage: ")
 
     def test_invocation(self):
         flags = (