[Numpy-discussion] Thoughts on making it easier for numarray users to transition to scipy_core

Peter Verveer verveer at embl-heidelberg.de
Mon Dec 12 13:36:02 EST 2005

Hi Travis,

I am curious about your experience with moving nd_image to  
scipy_core. I have not had the time to look at scipy_core, so I have  
not tried to do it myself, although it was on my very-long-term list  
of things to do. Did it require a lot of changes and did you get it  
to pass the unit tests?

Cheers, Peter

> A few days ago I played with nd_image and was able to make it  
> compile for scipy_core.  In the process, I had some ideas for  
> making the transition to scipy_core easier for numarray users:
> 1) It would be nice if there was someway to document on the Python  
> level any needed changes.  In the process, we might find things  
> that need to be added to scipy_core.  I would like to have some  
> kind of program for automatically making most of those needed  
> changes before a 1.0 release of scipy_core.
> 2) On the C-API side, my experience with nd_image showed me that  
> quite a few of the numarray C-API calls can be written as macros  
> while some will need to be additional functions.  I think we could  
> easily write a numcompatmodule.c and associated numcompat.h file so  
> that users needing the numarray C-API could include the numcompat.h  
> file and then the import_libnumarray() command would load the  
> numcompatmodule.c with it's compatibility functions.
> In this way, the transition for C-API users could be as easy as  
> changing the include file to numcompat.h?
> -Travis
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