(self)
Internal function.
Internal function.
Internal function .
def _windowingsystem(self):
        """Internal function."""
        try:
            return self._root()._windowingsystem_cached
        except AttributeError:
            ws = self._root()._windowingsystem_cached = \
                        self.tk.call('tk', 'windowingsystem')
            return ws
def _windowingsystem ( self ) : try : return self . _root ( ) . _windowingsystem_cached except AttributeError : ws = self . _root ( ) . _windowingsystem_cached = self . tk . call ( 'tk' , 'windowingsystem' ) return ws