title: What does the underscore mean in python
body: <p>Hi everyone as it obvious from my question I am like a brand new to python.
  I am so confused when I am reading the documentation on python or even here in the Stackoverflow forum... </p>
  
  <p>Why do they write like that </p>
  
  <pre><code>from __future__ import division
  </code></pre>
  
  <p>What does the underscore around the Future word mean ?? And Are we supposed to use it like that with the underscore in the python interpreter ?
  This is just one of tons of examples. Any help would be greatly appericated. </p>