title: How can I change the cursor shape with PyQt?
body: <p>I have a simple application that runs a process that can last for several minutes before completing.  I am trying to provide an indication to the user that it is processing the request - such as changing the cursor to an hourglass.</p>
  
  <p>But I cannot quite get it to work right.  All of my attempts have resulted in either an error or had no effect.  And I seem to be calling the cursor shapes incorrectly, since <code>PyQt4.Qt.WaitCursor</code> returns an error that the module does not contain it.</p>
  
  <p>What is the correct way to indicate to the user that the process is running?</p>