title: Auto updating a python executable generated with pyinstaller
body: <p>I have a desktop app that I'm working on and I am using <code>PyInstaller</code> to generate de distribution files. </p>
  
  <p>I have chosen <code>PyInstaller</code> over <code>py2exe</code> because it is very easy to use and  I don't need to care about windows dlls, but when I use <code>py2exe</code> I can simply use <a href="https://github.com/cloudmatrix/esky">Esky</a> to autoupdate, but I can't use it with <code>PyInstaller</code>.</p>
  
  <p>So I don't know how to start a auto-updating application. Someone have some thoughts or just know how can I use <code>PyInstaller</code> and esky?</p>