def _AssTuple(self, t):
        """ Tuple on left hand side of an expression.
        """

        # _write each elements, separated by a comma.
        for element in t.nodes[:-1]:
            self._dispatch(element)
            self._write(", ")

        # Handle the last one without writing comma
        last_element = t.nodes[-1]
        self._dispatch(last_element)
Tuple on left hand side of an expression.