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Title: Fix isinstance by youknowone · Pull Request #5869 · RustPython/RustPython · GitHub

Open Graph Title: Fix isinstance by youknowone · Pull Request #5869 · RustPython/RustPython

X Title: Fix isinstance by youknowone · Pull Request #5869 · RustPython/RustPython

Description: Summary by CodeRabbit New Features Introduced a new method for special method lookup that mimics CPython's behavior, allowing attribute retrieval in the type's method resolution order without raising exceptions. Refactor Improved the logic and safety of subclass and instance checks, making the behavior more consistent with CPython and removing unsafe code patterns.

Open Graph Description: Summary by CodeRabbit New Features Introduced a new method for special method lookup that mimics CPython's behavior, allowing attribute retrieval in the type's method resolution order wit...

X Description: Summary by CodeRabbit New Features Introduced a new method for special method lookup that mimics CPython's behavior, allowing attribute retrieval in the type's method resolution o...

Opengraph URL: https://github.com/RustPython/RustPython/pull/5869

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f1acca3 lookup_special youknowone Jun 29, 2025 https://github.com/RustPython/RustPython/pull/5869/commits/f1acca38395849e6cb7246e880f21d7f9c3d2e8e
c3857ee Fix abstract_issubclass youknowone Jun 30, 2025 https://github.com/RustPython/RustPython/pull/5869/commits/c3857ee571e4c7b59c34104af471112913fe4bdd
899abbb Fix real_is_instance youknowone Jun 29, 2025 https://github.com/RustPython/RustPython/pull/5869/commits/899abbb1f5081ba79b19164e3a3d670135bb6dd1
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