Need help setting tags for MP3 files using mutagen

[Robert Schweikert]

Hi,

Looked through the documentation and found example code. Based on those I came up with a script that should have worked for me. However, when I run my resulting code I end up with no metadata, which ultimately results in cmus not sorting my songs in the right place :(.

As such I could use some extra eyes to tell me where I am going astray.

""""

from mutagen.easyid3 import EasyID3

# A bunch of code that figures out track number artist, song and album based on my own naming convention

                    mp3 = EasyID3(f)
                    mp3['album'] = album
                    mp3['albumartist'] = artist
                    mp3['artist'] = artist
                    mp3['title'] = title
                    mp3['tracknumber'] = track

                    mp3.save()

""""

But then when I run id3v2 on a file modified with the code above I end up with:

No ID3 tag

I inserted some debug print statements into the code and the output below shows that I have values I expect:

Working for: t61_All_Guns_Blazing.mp3
album: Metalogy
artist: Judas Priest
title: All Guns Blazing
track: 61

meaning

 f='t61_All_Guns_Blazing.mp3'

album='Metalogy'

artist='Judas Priest'

title='All Guns Blazing'

track=61

So everything I am setting into the dictionary is what I expect. But

-> id3v2 -l Judas_Priest/Metalogy/t61_All_Guns_Blazing.mp3
Judas_Priest/Metalogy/t61_All_Guns_Blazing.mp3: No ID3 tag

In order for cmus to work I need to have Title, Album, Artist and the track as in the following example:

-> id3v2 -l Judas_Priest/t01_Never_Satisfied.mp3
id3v1 tag info for Judas_Priest/t01_Never_Satisfied.mp3:
Title  : Never Satisfied                 Artist: Judas Priest                  
Album  : Metalogy                        Year:     , Genre: Unknown (255)
Comment:                                 Track: 1
Judas_Priest/t01_Never_Satisfied.mp3: No ID3v2 tag

I tried the EasyTag UI but it generates the extended tags and cmus does not like those.

Help getting the simple tags into the metadata is much appreciated.

Thanks,

Robert

[Robert Schweikert]

And let me amend the information. When I re-load the file, i.e.

""""

>>> f='t61_All_Guns_Blazing.mp3'

>>> mp3 = EasyID3(f)

>>> mp3

 {'album': ['Metalogy'], 'title': ['All Guns Blazing'], 'artist': ['Judas Priest'], 'albumartist': ['Judas Priest'], 'tracknumber': ['61']}
"""

So my code does add the data it's just not in a format that makes cmus or id3v2 understand it.

Later,

Robert 

[Paul Eipper]

Hi,

You probably want to save the tags in v2.3 format instead of v2.4 (the default).

mp3.save(v2_version=3)

more info:

https://github.com/quodlibet/mutagen/blob/811ad0f7acb1fb03ef3258436088100602f2e5ca/mutagen/id3/_file.py#L223

https://stackoverflow.com/a/25950392

att,

--
Paul Eipper

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