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gh-106529: Fix subtle Tier 2 edge case with list iterator #106756

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Merged
merged 3 commits into from
Jul 15, 2023
Merged

gh-106529: Fix subtle Tier 2 edge case with list iterator #106756

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99c37b6
Add failing test
gvanrossum Jul 14, 2023
ad9e5a3
Fix deps for ceval.o
gvanrossum Jul 14, 2023
4a785bf
Fix subtle Tier 2 edge case with list iterator
gvanrossum Jul 14, 2023
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Add failing test 
https://github.com/python/cpython/actions/runs/5557504750/jobs/10151384516?pr=106707
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@gvanrossum
gvanrossum committed Jul 14, 2023
commit 99c37b6bb701edae3081540ec5ff7cce08365249
13 changes: 13 additions & 0 deletions Lib/test/test_capi/test_misc.py
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Expand Up @@ -2649,6 +2649,19 @@ def testfunc(a):
# Verification that the jump goes past END_FOR
# is done by manual inspection of the output

def test_list_edge_case(self):
def testfunc(it):
for x in it:
pass

opt = _testinternalcapi.get_uop_optimizer()
with temporary_optimizer(opt):
a = [1, 2, 3]
it = iter(a)
testfunc(it)
a.append(4)
with self.assertRaises(StopIteration):
next(it)

if __name__ == "__main__":
unittest.main()
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