title: Python os.system without the output
body: <p>I'm running this:</p>
  
  <pre><code>os.system("/etc/init.d/apache2 restart")
  </code></pre>
  
  <p>It restarts the webserver, as it should, and like it would if I had run the command directly from the terminal, it outputs this:</p>
  
  <p><code>* Restarting web server apache2                                                 ...</code> 
  <code>waiting                                                             [ OK ]</code></p>
  
  <p>However, I don't want it to actually output it in my app. How can I disable it?
  Thanks!</p>