Re: [LabPython-Users] Numpy and Scipy

[Glen S. <gle...@gm...>]

Hi again,

I would like voice my thanks for labpython as well, it's generally a great
piece of software, it's just unfortunate that numpy support is not there
since I was, as Luc said, using python/numpy/matplotlib as a matlab
replacement.

Cheers,
Glen

2008/6/5 Luc Estebanez <luc...@en...>:

> Hi all,
>
> I would like to add my vote to support the idea to add a numpy interface
> for Labpython! This would enhance greatly this piece of software since
> numpy has really become the standard for numerical stuff in python, and I
> suppose many users of Labpython are using python as a 'matlab'
> replacement.
>
> Thank you for all the hard work,
>
> Gratefully,
>
> luc
>
> > Hi Glen
> >
> > So numpy and scipy functions can be used as long as native data types are
> > used?  That may cause some problems since I am trying to perform matrix
> > operations.  I am using LabVIEW 8.20 with python 2.5.2 and labpython
> 1.2.2
> > on Windows XP.  I am trying to pass a 2D array of floats to python.
> >
> > It should be possible. The way I solved arrays in LabPython was to treat
> > them as lists. Consequently 2D arrays are lists of lists. It is not very
> > efficient but Python does even in 2.5 not give you an exported array C
> API
> > with which I could retrieve any information from a numpy array, despite
> > the
> > fact that the Python core does know an array datatype.
> >
> > It would be possible to add something like that to LabPython by making
> use
> > of the numpy extension and its exported C API but at the time I was
> > developing LabPython numpy was just in its infancy taking over from its
> > predecessor the numerical library. That API seemed not at all stable to
> me
> > at that point and making LabPython depend only softly on it (meaning it
> > would still work but without support of numpy datatypes) would also be
> > some
> > serious thinkering.
> >
> > I may take a look how numpy interfaces with Python to solve the array
> > interface issue but to do it right would be a majour undertaking and I
> > have
> > a real job to do that pays the bills.
> >
> > Rolf Kalbermatter
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