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Title: Resolve number slots via MRO in PyNumber and operator, ensure inherit… by YashSuthar983 · Pull Request #6222 · RustPython/RustPython · GitHub

Open Graph Title: Resolve number slots via MRO in PyNumber and operator, ensure inherit… by YashSuthar983 · Pull Request #6222 · RustPython/RustPython

X Title: Resolve number slots via MRO in PyNumber and operator, ensure inherit… by YashSuthar983 · Pull Request #6222 · RustPython/RustPython

Description: …ed and dynamically added methods are found. Use class().mro_find_map() to mimic the same behaviour as CPython. issue: #5726 test Cases dynamic_patch_test # Expected behavior: After patching A.__mul__ at runtime, B() * 2 should succeed. class A: pass class B(A): pass b = B() def mul(self, other): return ("mul", type(self).__name__, other) A.__mul__ = mul res = b * 2 assert res == ("mul", "B", 2) print("dynamic_patch OK") Cpython Bravo:~$ python3 ../number_mro_dynamic_patch.py dynamic_patch OK RustPython Bravo:~/contri/RustPython$ cargo run --quiet -- tests/number_mro_dynamic_patch.py Traceback (most recent call last): File "tests/number_mro_dynamic_patch.py", line 20, in res = b * 2 TypeError: '*' not supported between instances of 'B' and 'int' Bravo:~/contri/RustPython$ Summary by CodeRabbit Bug Fixes Numeric operations and type conversions now resolve methods by searching the full method resolution order, ensuring inherited or overridden numeric slots are respected. Binary and ternary operation dispatch correctly invokes overridden methods from parent classes when present, preserving previous behavior and error messages.

Open Graph Description: …ed and dynamically added methods are found. Use class().mro_find_map() to mimic the same behaviour as CPython. issue: #5726 test Cases dynamic_patch_test # Expected behavior: After patching A.__mu...

X Description: …ed and dynamically added methods are found. Use class().mro_find_map() to mimic the same behaviour as CPython. issue: #5726 test Cases dynamic_patch_test # Expected behavior: After patching A.__mu...

Opengraph URL: https://github.com/RustPython/RustPython/pull/6222

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21c7e15 Resolve number slots via MRO in PyNumber and operator, ensure inherit… YashSuthar983 Oct 27, 2025 https://github.com/RustPython/RustPython/pull/6222/commits/21c7e159ec5e4f931508309257fcd4c1d94564ca
355604d Revert temp __mul__ fix youknowone Oct 28, 2025 https://github.com/RustPython/RustPython/pull/6222/commits/355604d08a9f78e8a54454058102fef3d3f8897f
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