Catch MainLoop exceptions and displaying them in MessageDialogs

if __name__ == '__main__':
    app = MyApp(0)
    try:
        MainWindow(None, -1, 'My Cool App')
        app.MainLoop()
    except ConfigParser.Error, error_message:
        messagebox = wx.MessageDialog(None, error_message, 'Configuration Error', wx.OK | wx.ICON_ERROR)
        messagebox.ShowModal()