【Python】ファイルの一括改名スクリプトを保存します

#!/bin/env python
#encoding=utf-8
import os
import sys
allfile_name = sys.argv[1]
def delect(allfile_name):
    for i in os.listdir(allfile_name):
        wav_name = allfile_name + '/' + i + '/' + 'train'
#        print wav_name
        for j in os.listdir(wav_name):
            line = j.replace(' ','').strip("\r").strip("
")
            oldname= wav_name + '/' + j
            newname = wav_name + '/' + line
            os.rename(oldname,newname)
            print(oldname,'======>',newname)
if __name__ == '__main__':
    delect(allfile_name)