[SciPy-user] k nearest neighbour

Barry Wark barrywark@gmail....
Fri Oct 26 14:31:58 CDT 2007


Stefan,

What is the purpose (advantage) of build_ext instead of just `python
setup.py build`? I'm still learning the whole distutils/setuptools
things.

thanks,
Barry

On 10/24/07, Stefan van der Walt <stefan@sun.ac.za> wrote:
> Hi Barry
>
> On Wed, Oct 24, 2007 at 02:51:03PM -0700, Barry Wark wrote:
> > For those interested, I've cleaned up (and documented a little) my
> > wrapper for the Approximate Nearest Neighbor library. The source is
> > available as a zip archive at
> > http://rieke-server.physiol.washington.edu/~barry/ann/ANNwrapper.zip
> > (BSD license).
>
> Fantastic, this is a very useful contribution.
>
> > The setup.py contains instructions for installation and usage. You
> > will need the ANN library (from http://www.cs.umd.edu/~mount/ANN/),
> > setuptools, and SWIG installed.
>
> Maybe also add instructions to build in-place, i.e.
>
>    python setup.py build_ext -i
>
> > I think this wrapper may be useful as an addition to scipy, but I
> > haven't investigated where it might be most appropriate. I'd be happy
> > to relicense if necessary.
>
> The license is LGPL, so a SciKit would be appropriate.
>
> > Any suggestions or patches welcome.
>
> For statistical unit tests, use numpy.testing.assert_almost_equal;
> this leaves a bit of leeway for floating point roundoff (some of the
> tests currently fail [randomly] on my system).
>
> Regards
> Stéfan
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