comboCtrl = wx.ComboCtrl(self, wx.ID_ANY, "")
    
        popupCtrl = wx.ListViewComboPopup()
    
        # It is important to call SetPopupControl() as soon as possible
        comboCtrl.SetPopupControl(popupCtrl)
    
        # Populate using wx.ListView methods
        popupCtrl.InsertItem(popupCtrl.GetItemCount(), "First Item")
        popupCtrl.InsertItem(popupCtrl.GetItemCount(), "Second Item")
        popupCtrl.InsertItem(popupCtrl.GetItemCount(), "Third Item")