          # A0 - create single choice list         box = wx.SingleChoiceDialog(None, """ A0.    Do you like eating fruit? """, 'Fruit', a0)         if box.ShowModal() == wx.ID_OK:             a_0 = box.GetStringSelection()          print (a_0, '\n')          if a_0 == 'Yes':             box = wx.TextEntryDialog(None, "A0.    What kind of fruit is your favorite? ", "Fruit", "")         if box.ShowModal() == wx.ID_OK:  