Demomaster application framework with wxpython navigator

I see. Looks like in Linux when a list box item is selected, the second select event will not be delivered again.
Here is a quick fix (not sure if it is the best fix):
Add one more line in wxPanelControl.py:

    def selectListDemoFunctions(self, evt):
        j = self.wxListDemoFunctions.GetSelection()
        self.executeFunction(j, False)
        self.wxListDemoFunctions.SetSelection(-1)