uses a json file to fix the tags for audiobooks

ForceTags.py

'''
Takes all the mp3 in the current directory, replace all the id3 tags inside 
using the file name as title and the info in tags.json for almbum and artist
generates the track number from the position in the file list.
It also generates a playlist with the entire folder.
I use it for audiobooks.

The tags.json file is something like:
{
	"album" : "name of the album",
	"artist" : "name of the artist",
	"album_artist" : "name of the album artist"
}

**NOTES ON INSTALLATION**
It requires eyed3, you can install it with `pip install eyed3`. If python-magic is 
broken you can try to force the right version with
pip uninstall python-magic
pip install python-magic-bin
'''

import json
import glob
import eyed3
import os
import urllib

tags={}
with open('tags.json') as json_file:
    tags = json.load(json_file)

print(tags)

p=urllib.parse.quote_plus(f"{tags['album']} {tags['artist']}")+".m3u"
playlist= open(p,"w+")
playlist.write("#EXTM3U\n")
files = sorted(list(glob.glob("*.mp3")))

for n,f in enumerate(files):
    print(f)
    audiofile = eyed3.load(f)
    duration = audiofile.info.time_secs
    audiofile.initTag()
    audiofile.tag.artist = tags['artist']
    audiofile.tag.album = tags['album']
    audiofile.tag.album_artist = tags['album_artist']
    if ('titles' in tags.keys()) and (f in tags['titles']):
        audiofile.tag.title = tags['titles'][f]
    else:
        audiofile.tag.title = os.path.splitext(f)[0]
    audiofile.tag.track_num = n+1
    audiofile.tag.save()
    playlist.write(f"\n#EXTINF:123, {tags['artist']} - {audiofile.tag.title}\n")
    playlist.write(f+"\n")

playlist.close()