def handle_charref(self, name):
        replacement = self.convert_charref(name)
        if replacement is None:
            self.unknown_charref(name)
        else:
            self.handle_data(replacement)

    # Definition of entities -- derived classes may override
Handle character reference, no need to override.
dataset/ETHPy150Open azoft-dev-team/imagrium/env/Lib/sgmllib.py/SGMLParser.handle_charref