def __getitem__(self, index):
        """Faster than PrefixDecoder
        """
        if index>=len(self.extraTable):
            raise ValueError("No symbol {}[{}]".format(
                self.__class__.__name__, index))
        return Symbol(self, index)
def __getitem__ ( self , index ) : if index >= len ( self . extraTable ) : raise ValueError ( "No symbol {}[{}]" . format ( self . __class__ . __name__ , index ) ) return Symbol ( self , index )
Faster than PrefixDecoder