title: How to add Python to Windows registry
body: <p>I've downloaded Enthought Canopy EPD Free (now Canopy Express) from <a href="https://www.enthought.com/products/epd/free/" rel="noreferrer">https://www.enthought.com/products/epd/free/</a> and want to install SciKit Learn (<a href="http://sourceforge.net/projects/scikit-learn/files/" rel="noreferrer">http://sourceforge.net/projects/scikit-learn/files/</a>) which is not part of the basic EPD Free install. </p>
  
  <p>When trying to install it does not find Python in the Windows registry. How do I adjust the registry so that it recognizes the Enthought version of Python? </p>