[pypy-dev] Questions on the pypy+numpy project

Antonio Cuni anto.cuni at gmail.com
Wed Oct 19 13:57:01 CEST 2011

On 19/10/11 13:42, Antonio Cuni wrote:

> I'm not sure to interpret your sentence correctly.
> Are you saying that you would still want a pypy+numpy+scipy, even if it ran
> things slower than CPython? May I ask why?

ah sorry, I think I misunderstood your email.

You would like pypy+numpy+scipy so that you could write fast python-only 
algorithms and still use the existing libraries.  I suppose this is a 
perfectly reasonable usecase, and indeed the current plan does not focus on this.

However, I'd like to underline that to write "fast python-only algorithms", 
you most probably still need a fast numpy in the way it is written right now 
(unless you want to write your algorithms without using numpy at all).  If we 
went to the slow-but-scipy-compatible approach, any pure python algorithm 
which interfaces with numpy arrays would be terribly slow.


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