Nov 27, 2025 · Nov 27, 2025 · Nov 28, 2025 · Nov 28, 2025
diff --git a/Lib/test/test_profiling/test_sampling_profiler/test_profiler.py b/Lib/test/test_profiling/test_sampling_profiler/test_profiler.py
            self.assertIn("Warning: missed", result)
            self.assertIn("samples from the expected total", result)

    def test_sample_profiler_keyboard_interrupt(self):
        mock_unwinder = mock.MagicMock()
        mock_unwinder.get_stack_trace.side_effect = [
            [
                (
                    1,
                    [
                        mock.MagicMock(
                            filename="test.py", lineno=10, funcname="test_func"
                        )
                    ],
                )
            ],
            KeyboardInterrupt(),
        ]

        with mock.patch(
            "_remote_debugging.RemoteUnwinder"
        ) as mock_unwinder_class:
            mock_unwinder_class.return_value = mock_unwinder
            profiler = SampleProfiler(
                pid=12345, sample_interval_usec=10000, all_threads=False
            )
            mock_collector = mock.MagicMock()
            times = [0.0, 0.01, 0.02, 0.03, 0.04]
            with mock.patch("time.perf_counter", side_effect=times):
                with io.StringIO() as output:
                    with mock.patch("sys.stdout", output):
                        try:
                            profiler.sample(mock_collector, duration_sec=1.0)
                        except KeyboardInterrupt:
                            self.fail(
                                "KeyboardInterrupt was not handled by the profiler"
                            )
                    result = output.getvalue()
            self.assertIn("Interrupted by user.", result)
            self.assertIn("Captured", result)
            self.assertIn("samples", result)
            self.assertNotIn("Warning: missed", result)


 @force_not_colorized_test_class
 class TestPrintSampledStats(unittest.TestCase):
diff --git a/Misc/NEWS.d/next/Library/2025-11-27-11-39-50.gh-issue-141999._FKGlu.rst b/Misc/NEWS.d/next/Library/2025-11-27-11-39-50.gh-issue-141999._FKGlu.rst
 Correctly allow :exc:`KeyboardInterrupt` to stop the process when using
 :mod:`profiling.sampling`.
 :mod:`!profiling.sampling`.
Original file line number	Diff line number	Diff line change
Expand Up		@@ -224,6 +224,46 @@ def test_sample_profiler_missed_samples_warning(self):
		self.assertIn("Warning: missed", result)
		self.assertIn("samples from the expected total", result)

		def test_sample_profiler_keyboard_interrupt(self):
		mock_unwinder = mock.MagicMock()
		mock_unwinder.get_stack_trace.side_effect = [
		[
		(
		1,
		[
		mock.MagicMock(
		filename="test.py", lineno=10, funcname="test_func"
		)
		],
		)
		],
		KeyboardInterrupt(),
		]

		with mock.patch(
		"_remote_debugging.RemoteUnwinder"
		) as mock_unwinder_class:
		mock_unwinder_class.return_value = mock_unwinder
		profiler = SampleProfiler(
		pid=12345, sample_interval_usec=10000, all_threads=False
		)
		mock_collector = mock.MagicMock()
		times = [0.0, 0.01, 0.02, 0.03, 0.04]
		with mock.patch("time.perf_counter", side_effect=times):
		with io.StringIO() as output:
		with mock.patch("sys.stdout", output):
		try:
		profiler.sample(mock_collector, duration_sec=1.0)
		except KeyboardInterrupt:
		self.fail(
		"KeyboardInterrupt was not handled by the profiler"
		)
		result = output.getvalue()
		self.assertIn("Interrupted by user.", result)
		self.assertIn("Captured", result)
		self.assertIn("samples", result)
		self.assertNotIn("Warning: missed", result)


		@force_not_colorized_test_class
		class TestPrintSampledStats(unittest.TestCase):
Expand Down
Original file line number	Diff line number	Diff line change
		@@ -1,2 +1,2 @@
		Correctly allow :exc:`KeyboardInterrupt` to stop the process when using
		:mod:`profiling.sampling`.
		:mod:`!profiling.sampling`.