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Showing content from https://mail.python.org/pipermail/python-dev/2000-December/010975.html below:

[Python-Dev] Reference implementation for PEP 208 (coercion)

[Python-Dev] Reference implementation for PEP 208 (coercion) [Python-Dev] Reference implementation for PEP 208 (coercion)Guido van Rossum guido@python.org
Wed, 13 Dec 2000 11:45:12 -0500
> Neil Schemenauer writes:
>  > Sourceforge unloads are not working.  The lastest version of the
>  > patch for PEP 208 is here:
>  > 
>  >     http://arctrix.com/nas/python/coerce-6.0.diff
>  > 
>  > Operations on instances now call __coerce__ if it exists.  I
>  > think the patch is now complete.  Converting other builtin types
>  > to "new style numbers" can be done with a separate patch.
> 
> My one concern about this patch is whether the non-commutativity of
> operators is preserved.  This issue being important for matrix
> operations (not to be confused with element-wise array operations).

Yes, this is preserved.  (I'm spending most of my waking hours
understanding this patch -- it is a true piece of wizardry.)

--Guido van Rossum (home page: http://www.python.org/~guido/)



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