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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def set_exe(self, pipes_code):
 """ Dump launcher code to the distributed file system. """

        if not self.output:
            raise RuntimeError("no output directory, can't create launcher")
        parent = hdfs.path.dirname(hdfs.path.abspath(self.output.rstrip("/")))
        self.exe = hdfs.path.join(parent, utils.make_random_str())
        hdfs.dump(pipes_code, self.exe)