pip install -U scikit-learn

ImportError: libatlas.so.3gf: cannot open shared object file: No such file or directory

>>> import sklearn
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.7/dist-packages/scikit_learn-0.13-py2.7-linux-x86_64.egg/sklearn/__init__.py", line 32, in <module>
    from .base import clone
  File "/usr/local/lib/python2.7/dist-packages/scikit_learn-0.13-py2.7-linux-x86_64.egg/sklearn/base.py", line 9, in <module>
    import numpy as np
  File "/usr/lib/python2.7/dist-packages/numpy/__init__.py", line 137, in <module>
    import add_newdocs
  File "/usr/lib/python2.7/dist-packages/numpy/add_newdocs.py", line 9, in <module>
    from numpy.lib import add_newdoc
  File "/usr/lib/python2.7/dist-packages/numpy/lib/__init__.py", line 13, in <module>
    from polynomial import *
  File "/usr/lib/python2.7/dist-packages/numpy/lib/polynomial.py", line 17, in <module>
    from numpy.linalg import eigvals, lstsq
  File "/usr/lib/python2.7/dist-packages/numpy/linalg/__init__.py", line 48, in <module>
    from linalg import *
  File "/usr/lib/python2.7/dist-packages/numpy/linalg/linalg.py", line 23, in <module>
    from numpy.linalg import lapack_lite
    ImportError: /usr/lib/liblapack.so.3gf: undefined symbol: ATL_chemv

import fblas
ImportError: libatlas.so.3gf: cannot open shared object file: No such file or directory

sudo apt-get install python-scipy

hdante@aielwaste:~$ python
Python 2.7.3 (default, Sep 26 2012, 21:51:14)
[GCC 4.7.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import sklearn
>>>

echo "/usr/lib/atlas-base" | sudo tee /etc/ld.so.conf.d/atlas-lib.conf
sudo ldconfig