SOCO: I can't access Google Play Music

Hello-
This is not about one of the challenges, just a side project I’ve been working on.
I’m trying to control a SONOS speaker with a Wiimote using a raspberry pi as the controlling device. I’ve been wondering how to start playing music from Google Play Music. When I try:

print(MusicService.get_subscribed_services_names())

it gives me a blank list [], and when I try

playmusic = MusicService('google play music')

it gives me this error:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.7/dist-packages/soco/music_services/music_service.py", line 329, in __init__
    data = self.get_data_for_name(service_name)
  File "/usr/local/lib/python2.7/dist-packages/soco/music_services/music_service.py", line 502, in get_data_for_name
    "Unknown music service: '%s'" % service_name)
soco.exceptions.MusicServiceException: Unknown music service: 'google play music'
>>> playmusic = MusicService('Google Play Music')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.7/dist-packages/soco/music_services/music_service.py", line 351, in __init__
    "No account found for service: '%s'" % service_name)
soco.exceptions.MusicServiceException: No account found for service: 'Google Play Music'

For some reason SoCo doesn’t know I’m subscribed.
I know I’m subscribed because on my phone I can access my music.

I tried these links but they didn’t seem to help much.
http://docs.python-soco.com/en/latest/api/soco.music_services.music_service.html

Any help is appreciated! Thanks!

Surely you saw this warning on the project’s Github page, right?

Sonos has changed the way music service account information is available. This means that currently a group of music service will give authentication issues and cannot be used at all. Known members of this group are: Google Play Music, Apple Music, Amazon Music, Spotify and Napster.

Maybe this isn’t relevant, but I don’t know anything about this project or what you’ve tried so far. If I had to guess, though, I’d say it’s not going to work and there’s nothing you can do about it.

Hmm… I must have overlooked that. Well, thanks for the help.