def __str__(self):
        data = '%s' % self.vertice

        for ind in self.down:
            data += '\n---%s->%s\n' + (str(self.vertice), str(ind))


        data += '\n'
        return data
dataset/ETHPy150Open iogf/ehp/sample/ex6.py/Graph.__str__/operator `%` -> `+`