Listen to Google Play Music playlists from the terminal

play.py

#######################################################################
# You will need gmusicapi (https://github.com/simon-weber/gmusicapi)
# You can install it with:
#	pip install gmusicapi
#######################################################################

import sys,warnings,subprocess,os,time
from gmusicapi import Mobileclient
from random import shuffle
import curses


warnings.filterwarnings("ignore")
# Clear screen
subprocess.call('clear',shell=True)

def sendmessage(message):
	subprocess.Popen(['notify-send', "Now Playing...%s" % message])
	return

def play(song):
	with open(os.devnull, 'w') as temp:
		proc =  subprocess.Popen(["mplayer", "-noconfig", "all","%s" % song], stdin=subprocess.PIPE, stdout=temp, stderr=temp)
		return proc

try:
	playing = None
	songQueue = []

	api = Mobileclient()
	####################################################################################################
	# Use this next command to find a device ID to use.                                                #
	# Uncomment the next api.login line, run the script and it will print out your valid device ids.   #
	# Fill in the deviceID variable and then comment it out again.                                     #
	#api.login('<email address>', '<password>', '1234567890abcdef')                                    #
	####################################################################################################
	deviceID = ""
	api.login('<email address>', '<password>', deviceID)

	if not api.is_authenticated():
		print "Credentials were not accepted. Exiting..."
		sys.exit(1)

	# Was there a command line argument for a playlist?
	if len(sys.argv) >= 2:
		playlistWanted = sys.argv[1]
		playlists = api.get_all_user_playlist_contents()
		allSongs = api.get_all_songs()

		found = False
		for playlist in playlists:
			if playlist["name"].lower() == playlistWanted.lower() :
				found = True
				songQueue = playlist["tracks"]
				break
		if found:
			stdscr = curses.initscr()
			curses.cbreak()
			stdscr.timeout(1)
			stdscr.keypad(1)

			count = 0
			# Get all playlist songs into a queue and shuffle
			shuffle(songQueue)
			# Play the first song
			song = songQueue[count]
			playing = play(api.get_stream_url(song['trackId'],deviceID))

			# Print out track information to screen
			if "track" in song:
				stdscr.addstr(0,2,"%s - %s" % (song["track"]['title'],song["track"]['artist']))
				stdscr.clrtoeol()
				stdscr.refresh()
				sendmessage("%s - %s" % (song["track"]['title'],song["track"]['artist']))
			else:
				for currentSong in allSongs:
					if currentSong["id"] == song["trackId"]:
						stdscr.addstr(0,2,"%s - %s" % (currentSong['title'],currentSong['artist']))
						stdscr.clrtoeol()
						stdscr.refresh()
						sendmessage("%s - %s" % (currentSong['title'],currentSong['artist']))
						break

			key = ''
			while True:
				key = stdscr.getch()
				if key == curses.KEY_RIGHT:
					# Skipping song
					stdscr.addstr(0,2,"<Next Song>")
					stdscr.clrtoeol()
					stdscr.refresh()

					playing.terminate()
					time.sleep(2)


				if isinstance(playing, subprocess.Popen) and playing.poll() != None:
					# Song has stopped playing, play the next
					count = count + 1
					if count >= len(songQueue):
						count = 0
					song = songQueue[count]
					playing = play(api.get_stream_url(song['trackId'],deviceID))
					if "track" in song:
						stdscr.addstr(0,2,"%s - %s" % (song["track"]['title'],song["track"]['artist']))
						stdscr.clrtoeol()
						stdscr.refresh()
						sendmessage("%s - %s" % (song["track"]['title'],song["track"]['artist']))
					else:
						for currentSong in allSongs:
							if currentSong["id"] == song["trackId"]:
								stdscr.addstr(0,2,"%s - %s" % (currentSong['title'],currentSong['artist']))
								stdscr.clrtoeol()
								stdscr.refresh()
								sendmessage("%s - %s" % (currentSong['title'],currentSong['artist']))
								break
		else:
			print "Could not locate playlist"
	else:
		print "You must specify a playlist"
except Exception as e: 
	print str(e)
finally:
	if isinstance(playing, subprocess.Popen):
		playing.terminate()
	if api:
		api.logout()
	curses.endwin()
	sys.exit(0)