#!/usr/bin/env python
# http://miracle7.homeip.net/

import os, string
def print_tree(tree_dir):
    def replaceall(junk, dirpath, namelist):
        for name in namelist:
            oldfile = os.path.join(dirpath, name)
            newfile = oldfile.replace('_',' ')
            newfile = newfile.replace('%20',' ')
            newfile = newfile.replace('MP3','mp3')
            print newfile
            os.rename(oldfile, newfile)
    os.path.walk(tree_dir, replaceall, None)
    
print_tree(os.getcwd())