title: Python 2.7 How to load a shared module on a virtual env
body: <p>The <a href="https://graph-tool.skewed.de/" rel="nofollow">graph-tool</a> was installed to Ubuntu 16.04.1. </p>
  
  <p>I would like to use the graph-too together with other Python modules which were installed on a virtual env. </p>
  
  <p>Is there any way to use a shared module on a virtual env?</p>