python - Installing SciPy on Ubuntu

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

What worked for me:

To actually install scipy from PIP, you need packages libatlas-base-dev (libraries etc. for ATLAS/BLAS) and gfortran (GNU Fortran compiler).

Once these packages are installed, the scipy installer should finish as expected.