spotify_mediakeys.py

#!/usr/bin/env python

from dbus.mainloop.glib import DBusGMainLoop
import subprocess
import gobject
import dbus

appName = 'Spotify Media Keys'


def handleMediaKey(app, *keys):
    if app != appName:
        return

    method = None
    for key in keys:
        if key == 'Play':
            method = 'PlayPause'
        elif key in ['Stop', 'Next', 'Previous']:
            method = key

    if method:
        subprocess.call([
            'dbus-send',
            '--print-reply',
            '--dest=org.mpris.MediaPlayer2.spotify',
            '/org/mpris/MediaPlayer2',
            'org.mpris.MediaPlayer2.Player.' + method
        ])

if __name__ == '__main__':
    DBusGMainLoop(set_as_default=True)
    bus = dbus.Bus(dbus.Bus.TYPE_SESSION)
    mediaKeys = bus.get_object('org.gnome.SettingsDaemon', '/org/gnome/SettingsDaemon/MediaKeys')
    mediaKeys.GrabMediaPlayerKeys(appName, 0, dbus_interface='org.gnome.SettingsDaemon.MediaKeys')
    mediaKeys.connect_to_signal('MediaPlayerKeyPressed', handleMediaKey)
    gobject.MainLoop().run()