Re: [Visualpython-users] numarray? Numpy? Slackware 10?

[Jonathan B. <jbr...@ea...>]

On Wed, 2005-01-12 at 21:49 -0500, Jonathan Brandmeyer wrote:
> On Tue, 2005-01-11 at 23:16 -0800, Eric Ayars wrote:
> > Anyone here successfully install VPython on Slackware 10? So far I'm  
> > stuck at installing Numeric (23.7), which gives me an error about  
> > "cannot find -llapack" at the "python setup.py install" step.
> 
> First off, are you sure that there isn't a prebuilt binary package of
> Numeric in Slackware?  If you are sure that you need to install Numeric
> from source, install lapack (in Debian, it is called lapack-dev), or
> edit setup.py to use its own simple blas/lapack subroutines.
> 
> > I can install numarray fine, but visual-3.0.3/configure still wants  
> > numeric... Is it possible to run vpython with numarray instead of  
> > numeric? If so, how do I go about changing the configure file? Would  
> > more changes be required? (probably!)
> 
> If you really want to build with just Numarray, you can do this with
> version 3.1.0 of Visual, which was the first release to support
> Numarray.  It can be found from the Sourceforge download page.
> 
> > Or should I keep trying to get numeric installed? Any suggestions?  
> > Here's where the numeric install fails:
> 
> Other people have reported this issue to the Numeric developers, who
> should have this issue fixed in the next release.  You should probably
> file a bug report with them anyway, just as a reminder that this still
> needs fixing.

I just realized that that wasn't a well-structured reply.  The bug is
that the Numeric setup.py script assumes that you have LAPACK installed.
Numeric can be built without LAPACK, in which case it uses a built-in
set of functions that provide the same functionality, at the expense of
performance.  You can therefore either install the lapack library
(easier if a prebuilt package for it is in Slackware), or edit setup.py
to use Numeric's own versions of those functions (easier than building
lapack from source).

HTH,
-Jonathan