os模块清空而不删除文件夹

import shutil
import os
　　　
　　 # UPLOAD_PATH = "/data/www/static/uploads"

    if os.path.exists(UPLOAD_PATH):
        for i in os.listdir(UPLOAD_PATH):
            path_file = os.path.join(UPLOAD_PATH, i)
            if os.path.isfile(path_file):
                os.remove(path_file)
            elif os.path.isdir(path_file):
                shutil.rmtree(path_file)
            else:
                pass

         print("OK delete uploads datasets")
    else:
         print("文件不存在 cant find dir and file")