Data Extract in Tableau

Found a great website with instructions on how to automate data extracts in Tableau.  Actually, the site is pretty cool in general:

Building Tableau Data Extracts with Python in Tableau 8

Build Tableau Data Extracts out of CSV Files


First step is to download and install the data extract modules:


Looking for instructions on how to install, also found instructions on using Tableau command line facility.  This looks like it would be pretty useful as well: