title: PyQt4 QComboBox autocomplete without using setModel?
body: <p>I have found several excellent examples of a PyQt4 QComboBox with autocomplete (e.g. <a href="https://stackoverflow.com/questions/4827207/how-do-i-filter-the-pyqt-qcombobox-items-based-on-the-text-input">How do I Filter the PyQt QCombobox Items based on the text input?</a>), but they all use setModel and setSourceModel... etc.  </p>
  
  <p>Is it possible to create an autocomplete QComboBox in PyQt4 without using a model?</p>