Python os处理 删除上一级目录并保存文件

import os
import shutil
def delete_dir(root_path):
    case_list = os.listdir(path= root_path)
    case_list.sort()
    for case in case_list:
        print("case = {}".format(case))
        get_subdir = os.listdir(os.path.join(root_path, case))
        for sub_dir in get_subdir:
            shutil.move(os.path.join(root_path, case, sub_dir), os.path.join(root_path, sub_dir))
            os.rmdir(os.path.join(root_path, case))
   
if __name__ == '__main__':
    root_path = r'F:\Hepatobiliary_surgery\test'
    delete_dir(root_path)