[Python-Dev] The role of NotImplemented: What is it for and when should it be used?

[Guido van Rossum]

Sounds good!

On Mon, Nov 3, 2014 at 11:33 AM, Ethan Furman <ethan at stoneleaf.us> wrote:

> Summary:
>
> NotImplemented _should_ be used by the normal and reflected binary methods
> (__lt__, __add__, __xor__, __rsub__, etc.)
>
> NotImplemented _may_ be used by the in-place binary methods (__iadd__,
> __ixor__, etc.), but the in-place methods are also free to raise an
> exception.
>
> Correct?
>
> --
> ~Ethan~
>
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-- 
--Guido van Rossum (python.org/~guido)
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