mp3tag.py

#!/usr/bin/env python
# -*- encoding: UTF-8 -*-

# example:
#
#   python mp3tag.py --title-pattern '[0-9]+ - (.*)\.mp3' --artist "王菲" --album "王菲（2001）" --genre "" ~/Downloads/王菲.-.\[王菲2001\].专辑.\(MP3\)/*.mp3

import argparse
import taglib
import chardet
import re
import os

parser = argparse.ArgumentParser()
parser.add_argument('files', type=str, nargs='*')
parser.add_argument('--artist')
parser.add_argument('--album')
parser.add_argument('--genre')
parser.add_argument('--title-pattern')
parser.add_argument('--write', action='store_true',
                    help='write change sto disk')
args = parser.parse_args()

for file_name in args.files:
    print
    f = taglib.File(file_name)
    if args.artist is not None:
        f.tags['ARTIST'] = [args.artist]
    if args.album is not None:
        f.tags['ALBUM'] = [args.album]
    if args.genre is not None:
        f.tags['GENRE'] = [args.genre]
    if args.title_pattern is not None:
        m = re.search(args.title_pattern, os.path.basename(file_name))
        f.tags['TITLE'] = [m.group(1)]
    if args.write:
        f.save()
    for k in f.tags:
        print k
        for v in f.tags[k]:
            print '   ', v