title: Reset Vim Window switching shortcut in Python Mode
body: <p><code>ctrl+ww</code> cycle though all windows</p>
  
  <p>I want to switch this shorcut to <code>ctrl + we</code> in my <code>Vim</code> </p>
  
  <p>Then how do I set up my <code>.vimrc</code>?</p>
  
  <p>I have conflicting shortcut for <code>ctrl + ww</code> and when switching between windows in <code>NERDTree</code> I want to type <code>Ctrl + w e</code> instead of <code>ctrl + ww</code></p>
  
  <p>Please help me! Thanks</p>