[Numpy-discussion] (Late) summary of PEP-225 discussion at Scipy
Eric Firing
efiring@hawaii....
Wed Oct 22 19:17:18 CDT 2008
Perry Greenfield wrote:
> On Oct 22, 2008, at 5:15 PM, Robert Kern wrote:
>> I would add another position (my own) to the "Arguments neutral
>> towards or against the PEP":
>>
>> * I really only care about having just *one* extra operator, one that
>> I can (ab)use for matrix multiplication. It's the only operation that
>> is common enough and with one obvious implementation (I'm looking at
>> you, Matlab's "\") to warrant it, IMO. Doubling the number of
>> operators and special methods is not a price that I'm willing to pay
>> to get it, though.
>>
> Note that although some of the proposals allow for a doubling of the
> number of possible operators, numpy doesn't have to use them all and
> thus doesn't need to double the number of special methods. I'd agree
> that only a few are really necessary (to matrix multiply I'd add the
> logical operators as well).
I think a stronger general numpy case might be made for the logical
operators than for matrix multiplication. An alternative approach, and
I think preferable to introducing new logical operators, is PEP 335:
http://www.python.org/dev/peps/pep-0335/. It is still on the "under
consideration" list, but it has been there since 2004. Perhaps it needs
a strong push?
Eric
>
> Perry
>
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