title: In homebrew how do I change the python3 symlink to only "python"
body: <p>I want to install python using homebrew and I noticed there are 2 different formulas for it, one for python 2.x and another for 3.x. The first symlinks "python" and the other uses "python3". so I ran <code>brew install python3</code>. </p>
  
  <p>I really only care about using python 3 so I would like the default command to be "python" instead of having to type "python3" every time. Is there a way to do this?  I tried <code>brew switch python 3.3</code> but I get a "python is not found in the Cellar" error.</p>