[issue9930] Incorrect semantics of __radd__ method for builtin types

[Georg Brandl]

Georg Brandl <georg at python.org> added the comment:

This is indeed weird.  PyNumber_Add ends up calling compare_add with the float as its first argument, which is impossible to do from Python.  And the wrap_binaryfunc_r check for subtypes means that compare.__radd__ claims it doesn't support floats either.  So from Python, it's impossible to add floats and complex numbers via __special__ methods :)

Maybe Mark wants to shed some light?

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nosy: +georg.brandl

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