2021 Recap playlist breaking get_playlist

[kenbier]

Python 3.9, ytmusicapi 0.19.5

I am trying to pull the 2021 Recap playlist. When I pull a different playlist (change index on first line to 0, 2, etc) the code works.

Seems to be the 2021 Recap playlist only.

code:

recap = ytmusic.get_library_playlists()[1] ## My 2021 Recap playlist is the second playlist in the list.
print(recap)
id = recap['playlistId']
print(id)
ytmusic.get_playlist(id)

Stack trace:

---------------------------------------------------------------------------
IndexError                                Traceback (most recent call last)
/var/folders/tw/0871sv955631wvlml90j8c7h0000gn/T/ipykernel_53517/4079440716.py in <module>
      4 id = recap['playlistId']
      5 print(id)
----> 6 ytmusic.get_playlist(id)

~/miniconda3/envs/emails/lib/python3.9/site-packages/ytmusicapi/mixins/playlists.py in get_playlist(self, playlistId, limit)
     88             }
     89             if run_count > 3:
---> 90                 playlist['year'] = nav(header, SUBTITLE3)
     91 
     92         song_count = to_int(

~/miniconda3/envs/emails/lib/python3.9/site-packages/ytmusicapi/parsers/utils.py in nav(root, items, none_if_absent)
    153             return None
    154         else:
--> 155             raise err
    156 
    157 

~/miniconda3/envs/emails/lib/python3.9/site-packages/ytmusicapi/parsers/utils.py in nav(root, items, none_if_absent)
    147     try:
    148         for k in items:
--> 149             root = root[k]
    150         return root
    151     except Exception as err:

IndexError: list index out of range

[kenbier]

I believe the issue is that you are assuming the playlist year is in fifth index of the subtitle runs here. I.e.

{'text': 'Playlist'}
{'text': ' • '}
{'text': 'YouTube Music'}
{'text': ' • '}
{'text': '2021'}  ### <-- HERE

However for the 2021 recap it looks like this:

{'text': 'Unlisted'}
{'text': ' • '}
{'text': 'Made for '}
{'text': 'ACCOUNT_USERNAME'}

You should guard against the case where the runs list is EXACTLY 4 in length, which is causing the index out of bounds (different schema). You can look for the playlist year elsewhere or just set it to be empty.

[sigma67]

Unfortunately I don't have access to the recap yet so I can't test it. I don't suppose it's shareable?

I think we should change > 3 to = 5 to be more precise.

[kenbier]

That seems like the right fix yes, since you are assuming the fifth index is non null. If it is null, just ignoring the year seems like the simplest action for now.

If you want a 2021 Recap test case, you need to save your 2021 Recap as a playlist and make it pubic before the API can access it I believe.