data = """Designing a Component         Creating a GUI for your application
    Creating a Dialog           How to create a dialog
    Composing the Dialog        Putting widgets into the dialog example
    Creating a Layout           Arranging widgets on a form
    Signal and Slot Connections     Making widget communicate with each other
"""

if __name__ == '__main__':

    import sys

    app = QtGui.QApplication(sys.argv)

    model = TreeModel(data)

    view = QtGui.QTreeView()
    view.setModel(model)
    view.setWindowTitle("Simple Tree Model")
    view.show()
    sys.exit(app.exec_())