Revert class lookup by youknowone · Pull Request #7306 · RustPython/RustPython
The optimization to skip __class__ lookup based on getattro check was incorrect: a class can override __class__ as a property while still using standard __getattribute__. Revert to always performing the lookup, matching CPython's object_isinstance behavior.
Skip __class__ lookup in object_isinstance when safe
Revert class lookup
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youknowone added a commit to youknowone/RustPython that referenced this pull request
* Revert __class__ lookup skip in object_isinstance The optimization to skip __class__ lookup based on getattro check was incorrect: a class can override __class__ as a property while still using standard __getattribute__. Revert to always performing the lookup, matching CPython's object_isinstance behavior. * Collapse nested if in object_isinstance for clippy
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