title: How can I add a Picture to a QWidget in PyQt4
body: <p>How can I add or import a picture to a <code>QWidget</code>? I have found a clue.
  I can add a <code>Label</code> and add a <code>Picture</code> in that label. I need the arguments 
  for the <code>QPicture()</code>. The probable I can use is, <code>QLabel.setPicture(self.QPicture)</code>.</p>