Quick python script to handle media keys for pianobar

pianobar-mediakeys.py

#!/usr/bin/env python
import gobject
import dbus
import dbus.service
import dbus.mainloop.glib
import os.path

APP_ID="pianobar-mediakeys"

pianobar_key_bindings = {}

def on_mediakey(app, action):
  if app == APP_ID:
    if action == 'Play' or action == 'Pause':
      write_pianobar_cmd(pianobar_key_bindings['pause_song'])      
    elif action == 'Next':
      write_pianobar_cmd(pianobar_key_bindings['next_song'])      
    elif action == 'Stop':
      write_pianobar_cmd(pianobar_key_bindings['quit_pianobar'])      

def pianobar_config_file():
  if "XDG_CONFIG_HOME" in os.environ:
    config_path = os.environ("XDG_CONFIG_HOME")
  else:
    config_path = os.path.expanduser("~/.config")
  return config_path + "/pianobar/config"

def pianobar_fifo_file():
  return os.path.dirname(pianobar_config_file()) + "/ctl";

def write_pianobar_cmd(cmd):
  fifo = open(pianobar_fifo_file(), 'a')
  fifo.write(cmd)
  fifo.close()

def parse_pianobar_config():
  cfg = open(pianobar_config_file())
  lines = cfg.readlines()
  lines = map(str.rstrip, lines)

  config = {}

  for line in lines:
    line = line.split('=')
    config[line[0]] = line[1]

  pianobar_key_bindings["next_song"] = config.get('act_songnext', 'n')
  pianobar_key_bindings["pause_song"] = config.get('act_songpause', 'p')
  pianobar_key_bindings["quit_pianobar"] = config.get('act_quit', 'q')

parse_pianobar_config()

# set up the glib main loop.
dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
bus = dbus.Bus(dbus.Bus.TYPE_SESSION)

bus_object = bus.get_object('org.gnome.SettingsDaemon', '/org/gnome/SettingsDaemon/MediaKeys')

# this is what gives us the multi media keys.
dbus_interface='org.gnome.SettingsDaemon.MediaKeys'
bus_object.GrabMediaPlayerKeys(APP_ID, 0, dbus_interface=dbus_interface)

# connect_to_signal registers our callback function.
bus_object.connect_to_signal('MediaPlayerKeyPressed', on_mediakey)

# and we start the main loop.
mainloop = gobject.MainLoop()
mainloop.run()