title: how do I get the text from the checkbox?
body: <p>I have built a group checkbox by:   </p>
  
  <pre><code>self.group = QtGui.QButtonGroup()
  </code></pre>
  
  <p>How can I get the checkbox text which is/are clicked ?</p>
  
  <pre><code>self.group.buttonClicked.connect(self.btnCliked)
  </code></pre>