[Numpy-discussion] Performance of the array protocol

[Chris Barker]

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





-- 
Christopher Barker, Ph.D.
Oceanographer
                                     		
NOAA/OR&R/HAZMAT         (206) 526-6959   voice
7600 Sand Point Way NE   (206) 526-6329   fax
Seattle, WA  98115       (206) 526-6317   main reception

Chris.Barker at noaa.gov