rename music using titie and artist

rename_music.py

#!/usr/bin/env python
# coding=utf-8
import os
from mutagen.mp3 import MP3
from mutagen.easyid3 import EasyID3

dir = "/home/ma6174/Music/"
for i in os.listdir(dir):
    real_path = dir + i
    id3info = MP3(real_path, ID3=EasyID3)
    new_name = id3info['title'][0] + '-' + id3info['artist'][0] + os.path.splitext(real_path)[1]
    new_path = dir + new_name.replace('/','').replace(' ','')
    print "rename", real_path, "==>", new_path
    os.rename(real_path,new_path)