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[3.9] bpo-42482: remove reference to exc_traceback from TracebackException (GH-23531) (GH-23578)

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(cherry picked from commit 427613f005)


Co-authored-by: Irit Katriel <iritkatriel@yahoo.com>
This commit is contained in:
Miss Islington (bot) 2020-12-04 12:57:31 -08:00 • committed by GitHub
parent 81ac030d03
commit 40b92f1cc0
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3 changed files with 25 additions and 3 deletions
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22
Lib/test/test_traceback.py
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@ -1103,6 +1103,18 @@ class TestTracebackException(unittest.TestCase):
self.assertEqual(exc_info[0], exc.exc_type)
self.assertEqual(str(exc_info[1]), str(exc))
def test_no_refs_to_exception_and_traceback_objects(self):
try:
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except Exception:
exc_info = sys.exc_info()
refcnt1 = sys.getrefcount(exc_info[1])
refcnt2 = sys.getrefcount(exc_info[2])
exc = traceback.TracebackException(*exc_info)
self.assertEqual(sys.getrefcount(exc_info[1]), refcnt1)
self.assertEqual(sys.getrefcount(exc_info[2]), refcnt2)
def test_comparison_basic(self):
try:
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@ -1152,6 +1164,16 @@ class TestTracebackException(unittest.TestCase):
exc7 = traceback.TracebackException(*exc_info, limit=-2, capture_locals=True)
self.assertNotEqual(exc6, exc7)
def test_comparison_equivalent_exceptions_are_equal(self):
excs = []
for _ in range(2):
try:
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except:
excs.append(traceback.TracebackException(*sys.exc_info()))
self.assertEqual(excs[0], excs[1])
self.assertEqual(list(excs[0].format()), list(excs[1].format()))
def test_unhashable(self):
class UnhashableException(Exception):
def __eq__(self, other):