Installing SciPy Stack

in Ubuntu/Debian:

To install Scipy:

sudo apt-get install python-numpy python-scipy python-matplotlib ipython ipython-notebook python-pandas python-sympy python-nose python-tk

To install Scikit-learn

sudo apt-get install pip

sudo pip install -U scikit-learn

To install NLTK

sudo pip install -U setuptools

sudo pip install -U nltk

To install Pandas

sudo pip install pandas

To install Jupyter notebook

sudo pip install jupyter 

First you have to install setuptools before installing jupyter notebook.