code: def _handleSelectAllAxes(self, evt):
          
          if len(self._axisId) == 0:
              return
          for i in range(len(self._axisId)):
              self._menu.Check(self._axisId[i], True)
          self._toolbar.set_active(self.getActiveAxes())
          evt.Skip()
docs: Called when the 'select all axes' menu item is selected.