[SciPy-user] Problems installing scipy

David Cournapeau david@ar.media.kyoto-u.ac...
Mon Jul 30 21:58:05 CDT 2007

Alexander Dietz wrote:
> Hi,
> I am trying to install scipy on my laptop, running FC5. I have 
> installed numpy, so I downloaded the scipy-package and run the setup 
> script which creates a warning only:
Note that to avoid all this hassle, there are some rpm for FC5 for numpy 
and scipy:

> > python setup.py install
> usr/lib/python2.4/distutils/dist.py:236: UserWarning: Unknown 
> distribution option: 'configuration'
>   warnings.warn(msg)
> running install
> running build
> running config_fc
> When testing the installation within (i)python I get:
> In [1]: import scipy
> --------------------------------------------------------------------------- 
> exceptions.ImportError                               Traceback (most 
> recent call last)
> /opt/users/src/scipy-0.5.2/<ipython console>
> ImportError: No module named scipy
> I tried also to scipy to install in the directory 
> /usr/lib/python2.4/site-packages where numpy is installed (at least 
> that's what numpy.__path__ is saying) with
>  python setup.py install --prefix=/usr/lib/python2.4/site-packages    
You did not give enough details, but the line above suggests that you 
are making a mistake concerning where the packages are installed.

If you do python setup.py install -> install in the default 
site-packages of your python installation, in this case 

if you do python setup.py install --prefix=SOMEPATH, this will install 
the packages in SOMEPATH/python2.4/site-packages (assuming your python 
is 2.4, of course).

So the path you give to the --prefix option and the one where python is 
looking at are different. For example, not having administrative rights 
on my machine, I install everything in my $HOME/local directory:

python setup.py install --prefix=$HOME/local

And the add $HOME/local/python2.4/site-packages to my PYTHONPATH.



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