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gh-126016: Fix flaky test by allowing the SIGINT return code #139219

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Merged
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Sep 23, 2025
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gh-126016: Fix flaky test by allowing the SIGINT return code #139219

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7 changes: 6 additions & 1 deletion Lib/test/test_interpreters/test_api.py
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Original file line number Diff line number Diff line change
Expand Up @@ -459,7 +459,12 @@ def test():
error = proc.stderr.read()
self.assertIn(b"KeyboardInterrupt", error)
retcode = proc.wait()
self.assertEqual(retcode, 0)
# Sometimes we send the SIGINT after the subthread yields the GIL to
# the main thread, which results in the main thread getting the
# KeyboardInterrupt before finalization is reached. There's not
# any great way to protect against that, so we just allow a -2
# return code as well.
self.assertIn(retcode, (0, -signal.SIGINT))


class TestInterpreterIsRunning(TestBase):
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