pkl.load(f)报错

    def input_data(self, dirname="./data"):
        data = None
        if os.path.isfile(
            dirname + "/" + self.args.data + "_" + str(self.args.hop) + ".pickle"
        ):

            with open(
                dirname + "/" + self.args.data + "_" + str(self.args.hop) + ".pickle",
                "rb"
            ) as f:
                data = pkl.load(f)

第二次运行这个代码会报错，把/data文件夹里的mutag_1.pickle删除就ok了。
不知原因