title: How to get disk IO and network usage as percent by psutil
body: <p>Is there a way to get disk IO and network usage as a percentage by psutil.</p>
  
  <p>I found some useful function. But I don't know, how to get as a percentage using</p>
  
  <pre><code>psutil.disk_io_counters()
  
  psutil.net_io_counters()
  </code></pre>