[SciPy-User] BLAS libraries not found (Windows)

[Mara Grahl]

Hi, 

thank you very much for pointing me to the installer for Python 3.3! Scipy works now.

Unfortunately, odelab does not, although the installation process ended with "succesfully installed":

C:\Python33\Scripts>pip install -e git+https://github.com/olivierverdier/odelab#
egg=odelab
Obtaining odelab from git+https://github.com/olivierverdier/odelab#egg=odelab
  Cloning https://github.com/olivierverdier/odelab to c:\python33\scripts\src\od
elab
  Running setup.py egg_info for package odelab

Installing collected packages: odelab
  Running setup.py develop for odelab

    Creating c:\python33\lib\site-packages\odelab.egg-link (link to .)
    Adding odelab 0.0.0 to easy-install.pth file

    Installed c:\python33\scripts\src\odelab
Successfully installed odelab
Cleaning up...

When trying to import odelab in the python shell, I always obtain an Import error:

>>> from odelab import System
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "c:\python33\scripts\src\odelab\odelab\__init__.py", line 1, in <module>
    from solver import Solver, load_solver
ImportError: No module named 'solver'

Maybe you can help me with this issue, too?

Thank you very much again,
Mara
 


-------- Original-Nachricht --------
> Datum: Sat, 16 Feb 2013 23:55:24 +0100
> Von: klo uo <klonuo at gmail.com>
> An: SciPy Users List <scipy-user at scipy.org>
> Betreff: Re: [SciPy-User] BLAS libraries not found (Windows)

> I guess you need lapack and then set correct paths in site.cfg file. Even
> more if you like to build under MinGW you can use Atlas with lapack for
> additional speedup. If you are interested in this path let me know I'll
> point you to Atlas project that compiles under MinGW.
> 
> But you can of course download and install ready made Scipy without all
> this trouble and you can even find prebuild windows SciPy packages
> compiled
> with MKL kindly provided here:
> http://www.lfd.uci.edu/~gohlke/pythonlibs/#scipy
> 
> 
> On Fri, Feb 15, 2013 at 12:04 PM, <MaraMaus at nurfuerspam.de> wrote:
> 
> > Hi,
> >
> > I'm trying to install scipy (originally I only wanted to install odespy,
> > which requires odelab which requires scipy...).
> >
> > I'm using Windows (32 bit). I followed the instructions in
> > http://www.scipy.org/Installing_SciPy/BuildingGeneral
> > to install BLAS, where I only had to adjust the step where the
> environment
> > variable is set by export for Windows. I use MinGW and blas.tgz was
> > unpacked in the directory /c/users/mara/desktop/PythonDoku/BLAS:
> >
> > Mara at Mara-PC /c/users/mara/desktop/PythonDoku/BLAS
> > $ gfortran -O2 -std=legacy -fno-second-underscore -c *.f
> > dann build libfblas.a library, and set environment variable BLAS
> > Mara at Mara-PC /c/users/mara/desktop/PythonDoku/BLAS
> > $ ar r libfblas.a *.o
> > C:\MinGW\bin\ar.exe: creating libfblas.a
> > Mara at Mara-PC /c/users/mara/desktop/PythonDoku/BLAS
> > $ ranlib libfblas.a
> > Mara at Mara-PC /c/users/mara/desktop/PythonDoku/BLAS
> > $ rm -rf *.o
> > Mara at Mara-PC /c/users/mara/desktop/PythonDoku/BLAS
> > $ export BLAS="c\users\mara\desktop\PythonDoku\BLAS\libfblas.a"
> >
> > Now when trying to install scipy via
> > >python setup.py install
> > I encounter the following error:
> >
> >  in get_info
> >     raise self.notfounderror(self.notfounderror.__doc__)
> > numpy.distutils.system_info.BlasNotFoundError:
> >     Blas (http://www.netlib.org/blas/) libraries not found.
> >     Directories to search for the libraries can be specified in the
> >     numpy/distutils/site.cfg file (section [blas]) or by setting
> >     the BLAS environment variable.
> >
> > I assume it has something to do with the step
> > $ export BLAS="c\users\mara\desktop\PythonDoku\BLAS\libfblas.a"
> > above, which might be wrong...?
> >
> > I would be glad for any help! Thank you in advance,
> > Mara
> > _______________________________________________
> > SciPy-User mailing list
> > SciPy-User at scipy.org
> > http://mail.scipy.org/mailman/listinfo/scipy-user
> >