From 06c779474c7f53bccb8ebf42c66e73b2488bf488 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Bartosz=20S=C5=82awecki?= <bartosz@ilikepython.com>
Date: Sun, 26 Oct 2025 15:48:03 +0100
Subject: [PATCH] gh-137568: Ignore startup file in
 `test_dumb_terminal_exits_cleanly` (GH-140295)

---
 Lib/test/test_pyrepl/test_pyrepl.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Lib/test/test_pyrepl/test_pyrepl.py b/Lib/test/test_pyrepl/test_pyrepl.py
index ad7464dc3d37..e298b2add52c 100644
--- a/Lib/test/test_pyrepl/test_pyrepl.py
+++ b/Lib/test/test_pyrepl/test_pyrepl.py
@@ -1406,6 +1406,9 @@ class TestDumbTerminal(ReplTestCase):
     def test_dumb_terminal_exits_cleanly(self):
         env = os.environ.copy()
         env.pop('PYTHON_BASIC_REPL', None)
+        # Ignore PYTHONSTARTUP to not pollute the output
+        # with an unrelated traceback. See GH-137568.
+        env.pop('PYTHONSTARTUP', None)
         env.update({"TERM": "dumb"})
         output, exit_code = self.run_repl("exit()\n", env=env)
         self.assertEqual(exit_code, 0)
-- 
2.47.3