re-organize music

gistfile1.py

#!/usr/bin/env python
from __future__ import unicode_literals, print_function

import os
import re

import mutagen


for path, dirs, files in os.walk('old'):
    for file_ in files:
        src = os.path.join(path, file_)
        ext = file_.rsplit('.', 1)[1]
        try:
            tag = mutagen.File(src, easy=True)
            genre = (tag.get('genre') or ['uncategorized'])[0]
            # not everyone has album artist set.
            artist = (tag.get('albumartist') or tag.get('performer') or tag['artist'])[0]
            album = tag['album'][0]
            num = int(tag['tracknumber'][0].split('/')[0])
            song = re.sub('/', '|', tag['title'][0])
            dest_dir = os.path.join(genre, artist, album)
            dest_file = '{0:02d} - {1}.{2}'.format(num, song, ext)
        except Exception as e:
            print(e)
            dest_dir = 'error'
            dest_file = file_

        dest = os.path.join(dest_dir, dest_file)
        os.renames(src, dest.encode('utf8'))