Python - Machine Learning - Install scikit-learn in Ubuntu

To install scikit-learn package, we need to install its dependencies:

$ sudo pip install scipy
The directory '/home/ubuntu/.cache/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
The directory '/home/ubuntu/.cache/pip' or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
Collecting scipy
  Downloading https://files.pythonhosted.org/packages/2a/f3/de9c1bd16311982711209edaa8c6caa962db30ebb6a8cc6f1dcd2d3ef616/scipy-1.1.0-cp27-cp27mu-manylinux1_x86_64.whl (30.8MB)
    100% |████████████████████████████████| 30.8MB 38kB/s 
Requirement already satisfied: numpy>=1.8.2 in ./.local/lib/python2.7/site-packages (from scipy)
Installing collected packages: scipy
Successfully installed scipy-1.1.0
$


Now Install sklearn:

$ sudo pip install sklearn
The directory '/home/ubuntu/.cache/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
The directory '/home/ubuntu/.cache/pip' or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
Collecting sklearn
  Downloading https://files.pythonhosted.org/packages/1e/7a/dbb3be0ce9bd5c8b7e3d87328e79063f8b263b2b1bfa4774cb1147bfcd3f/sklearn-0.0.tar.gz
Collecting scikit-learn (from sklearn)
  Downloading https://files.pythonhosted.org/packages/bc/67/370aa248f54769a56216707ad7b9af19745e85a603fafa47bde353f327fb/scikit_learn-0.19.2-cp27-cp27mu-manylinux1_x86_64.whl (5.0MB)
    100% |████████████████████████████████| 5.0MB 179kB/s 
Installing collected packages: scikit-learn, sklearn
  Running setup.py install for sklearn ... done
Successfully installed scikit-learn-0.19.2 sklearn-0.0
$

Refer:

• http://scikit-learn.org/stable/