Fix exception type for negative __length_hint__ return value#758
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graalvmbot merged 2 commits intooracle:masterfrom Apr 27, 2026
Merged
Fix exception type for negative __length_hint__ return value#758graalvmbot merged 2 commits intooracle:masterfrom
__length_hint__ return value#758graalvmbot merged 2 commits intooracle:masterfrom
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Signed-off-by: Jeongseop Lim <jeongseop_lim@korea.ac.kr>
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CI failures unrelated - pre-existing infra/flaky tests |
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Description
Fixes #757
When
__length_hint__()returns a negative integer, GraalPy raisesTypeErrorinstead ofValueError. CPython'sPyObject_LengthHint(Objects/abstract.c:141-144) raisesValueErrorfor this case.AS-IS
TO-BE
(matching CPython)
Changes
ValueErrorinstead ofTypeErrorfor negative__length_hint__return value inIteratorNodes.GetLength.length, matching CPython'sPyObject_LengthHint. The adjacent non-integer branch continues to raiseTypeErroras before.