code: def _get_local_dirs(sub):
      
      path = os.environ.get("SPARK_LOCAL_DIRS", "/tmp")
      dirs = path.split(",")
      if len(dirs) > 1:
          # different order in different processes and instances
          rnd = random.Random(os.getpid() + id(dirs))
          random.shuffle(dirs, rnd.random)
      return [os.path.join(d, "python", str(os.getpid()), sub) for d in dirs]
docs: Get all the directories