[Numpy-discussion] Performance of the array protocol

Chris Barker Chris.Barker at noaa.gov
Tue Nov 1 10:07:59 CST 2005


Travis Oliphant wrote:
> So, I guess the answer to your question is that for small arrays it is 
> an intrinsic limitation of the use of Python attributes in the array 
> protocol.

IIRC, in the early discussion of the array protocol, we had talked about 
defining a C struct, and a set of utilities to query that struct. Now, I 
guess it uses Python attributes. Do I recall incorrectly, or has there 
been a design change, or is this a prototype implementation? I guess I'd 
like to see an array protocol that is as fast as fromstring(), even for 
small arrays, though it's probably not a big deal. Also, when writing C 
code to work with an array, it might be easier, as well as faster, to 
not have to query Python attributes.

-Chris





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Christopher Barker, Ph.D.
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