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[3.13] gh-130250: fix regression in traceback.print_last (GH-130318) (#130325)

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gh-130250: fix regression in traceback.print_last (GH-130318)
(cherry picked from commit 6c982aeb54)

Co-authored-by: Irit Katriel <1055913+iritkatriel@users.noreply.github.com>
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Miss Islington (bot) 2025-02-19 23:06:43 +01:00 • committed by GitHub
parent 6c92424b94
commit d172415a4e
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4 changed files with 16 additions and 8 deletions
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7
Lib/test/test_traceback.py
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@ -516,6 +516,13 @@ class TracebackCases(unittest.TestCase):
traceback.print_exception(Exception("projector"), file=output)
self.assertEqual(output.getvalue(), "Exception: projector\n")
def test_print_last(self):
self.assertIsNone(getattr(sys, "last_exc", None))
sys.last_exc = ValueError(42)
output = StringIO()
traceback.print_last(file=output)
self.assertEqual(output.getvalue(), "ValueError: 42\n")
def test_format_exception_exc(self):
e = Exception("projector")
output = traceback.format_exception(e)