[Numpy-discussion] What is Numeric3 anyway?

Michiel Jan Laurens de Hoon mdehoon at ims.u-tokyo.ac.jp
Sun Mar 27 00:45:33 EST 2005

Travis Oliphant wrote:
> Michiel Jan Laurens de Hoon wrote:
>> I'm a bit confused about where Numeric3 is heading. Originally, the idea 
>> was that Numeric3 should go in Python core. Are we still aiming for that? 
>> More recently, another goal was to integrate Numeric and numarray, which I 
>> fully support.
> I would prefer to re-integrate the numarray people "back" into the Numeric 
> community, by adding the features to Numeric that they need.
>> However, from looking at the Numeric3 source code, and from looking at the 
>> errors found by Arnd
> These errors are all due to the fact that umath functions are not available 
> yet.   Please don't judge too hastily.  At this point, I'm

OK. Fair enough. Maybe I did judge too hastily. From your comments, it looks
like we agree on where Numeric3 is going.

>> It seems that this message is due to the section labeled "#Generate code" 
>> in setup.py, where python is being run with a call to os.system. What does 
>> this do? Is there a need to generate code automatically in setup.py, rather
>>  than include the generated code with the Numeric3 source code?
> (code-generators are critical for maintainability --- in answer to your
> previous question).

As far as I can tell from their setup.py, neither Numerical Python nor numarray 
currently does code generation on the fly from setup.py. (This was one of the 
reasons that I started to worry if Numeric3 is more than Numerical Python + 


Michiel de Hoon, Assistant Professor
University of Tokyo, Institute of Medical Science
Human Genome Center
4-6-1 Shirokane-dai, Minato-ku
Tokyo 108-8639

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