Question

I have Python 2.7 running and trying to install scipy by using easy_install which returns following errors:

Searching for scipy
Reading http://pypi.python.org/simple/scipy/
Reading http://www.scipy.org
Reading http://sourceforge.net/project/showfiles.php?group_id=27747&package_id=19531
Reading http://new.scipy.org/Wiki/Download
Best match: scipy 0.11.0
Downloading http://pypi.python.org/packages/source/s/scipy/scipy-0.11.0.zip#md5=40b700ddde9ddab643b640fff7a9d753
Processing scipy-0.11.0.zip
Running scipy-0.11.0/setup.py -q bdist_egg --dist-dir /tmp/easy_install-49BQSz/scipy-0.11.0/egg-dist-tmp-KMjwKy
Running from scipy source directory.
/usr/lib64/python2.7/site-packages/numpy/distutils/system_info.py:1425: UserWarning: 
    Atlas (http://math-atlas.sourceforge.net/) libraries not found.
    Directories to search for the libraries can be specified in the
    numpy/distutils/site.cfg file (section [atlas]) or by setting
    the ATLAS environment variable.
  warnings.warn(AtlasNotFoundError.__doc__)
/usr/lib64/python2.7/site-packages/numpy/distutils/system_info.py:1434: UserWarning: 
    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.
  warnings.warn(BlasNotFoundError.__doc__)
/usr/lib64/python2.7/site-packages/numpy/distutils/system_info.py:1437: UserWarning: 
    Blas (http://www.netlib.org/blas/) sources not found.
    Directories to search for the sources can be specified in the
    numpy/distutils/site.cfg file (section [blas_src]) or by setting
    the BLAS_SRC environment variable.
  warnings.warn(BlasSrcNotFoundError.__doc__)
error: 
    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.

So I installed Blas and Atalas by executing

apt-get install blas
apt-get install atlas

However, the easy_install errors don’t disappear.

Thanks!

Answer 1

Ubuntu puts library files in a rather exotic directory.
/usr/lib/x86_64-linux-gnu/ or something, depending on your architecture.
You need to add this directory to the site.cfg file or the BLAS environment variable.

If easy install also needs the header files, you need to install the respective -dev packages.

But, like @pitsanu-swangpheaw suggests, you can also install to the site packages directory using the ubuntu package manager.

sudo apt-get install python-numpy python-scipy