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gh-131927: Prevent emitting optimizer warnings twice in the REPL (#131993)

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Tomas R. 2025-04-12 12:34:36 +02:00 • committed by GitHub
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commit 3d08c8ad20
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5 changed files with 74 additions and 2 deletions
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18
Lib/test/test_compile.py
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@ -1646,6 +1646,24 @@ class TestSpecifics(unittest.TestCase):
self.assertRaises(NameError, ns['foo'])
def test_compile_warnings(self):
# See gh-131927
# Compile warnings originating from the same file and
# line are now only emitted once.
with warnings.catch_warnings(record=True) as caught:
warnings.simplefilter("default")
compile('1 is 1', '<stdin>', 'eval')
compile('1 is 1', '<stdin>', 'eval')
self.assertEqual(len(caught), 1)
with warnings.catch_warnings(record=True) as caught:
warnings.simplefilter("always")
compile('1 is 1', '<stdin>', 'eval')
compile('1 is 1', '<stdin>', 'eval')
self.assertEqual(len(caught), 2)
class TestBooleanExpression(unittest.TestCase):
class Value:
def __init__(self):