Prerequisites: No prior data science experience is needed but please install the following:
1) Download and Install Anaconda from https://www.continuum.io/downloads (Alternatives could be Canopy Express from https://store.enthought.com/ or just the core implementation from https://www.python.org/downloads/ ).
2) Download and Install the Jupyter Notebook Interface http://jupyter.readthedocs.org/en/latest/install.html
3) You can use pip or easy install to install packages. There are more than 72000 Python packages available at https://pypi.python.org/pypi . You can browse Python packages by topic at https://pypi.python.org/pypi?%3Aaction=browse