bpo-37933: Fix faulthandler.cancel_dump_traceback_later() (GH-15440)
Fix faulthandler.cancel_dump_traceback_later() call
if cancel_dump_traceback_later() was not called previously.
diff --git a/Lib/test/test_faulthandler.py b/Lib/test/test_faulthandler.py
index 1cf20db..b1aa8c3 100644
--- a/Lib/test/test_faulthandler.py
+++ b/Lib/test/test_faulthandler.py
@@ -817,6 +817,17 @@
self.assertEqual(output, [])
self.assertEqual(exitcode, 0xC0000005)
+ def test_cancel_later_without_dump_traceback_later(self):
+ # bpo-37933: Calling cancel_dump_traceback_later()
+ # without dump_traceback_later() must not segfault.
+ code = dedent("""
+ import faulthandler
+ faulthandler.cancel_dump_traceback_later()
+ """)
+ output, exitcode = self.get_output(code)
+ self.assertEqual(output, [])
+ self.assertEqual(exitcode, 0)
+
if __name__ == "__main__":
unittest.main()