old_contents: import os, sys, json, pylast, calendar
  from datetime import datetime
  
  resultJson = json.loads(sys.stdin.read())
  # exit immediately if recognition failed
  if resultJson["status"]["msg"] != "Success":
  	print "Recognition failed."
  	sys.exit(2)
  
  # load Last.fm auth details into environment variables
  apiKey = os.environ["LASTFM_API_KEY"]
  apiSecret = os.environ["LASTFM_API_SECRET"]
  username = os.environ["LASTFM_USERNAME"]
  password = os.environ["LASTFM_PASSWORD"]
  passwordHash = pylast.md5(password)
  
  # load song details from JSON object
  songName = resultJson["metadata"]["music"][0]["title"]
  songArtist = resultJson["metadata"]["music"][0]["artists"][0]["name"]
  
  network = pylast.LastFMNetwork(api_key=apiKey, api_secret=apiSecret,
                                 username=username, password_hash=passwordHash)
  
  d = datetime.utcnow()
  unixtime = calendar.timegm(d.utctimetuple())
  network.scrobble(songArtist, songName, unixtime)
  
  
new_contents: import os, sys, json, pylast, calendar
  from datetime import datetime
  
  resultJson = json.loads(sys.stdin.read())
  # exit immediately if recognition failed
  if resultJson["status"]["msg"] != "Success":
  	print "Recognition failed."
  	sys.exit(2)
  
  # load Last.fm auth details into environment variables
  apiKey = os.environ["LASTFM_API_KEY"]
  apiSecret = os.environ["LASTFM_API_SECRET"]
  username = os.environ["LASTFM_USERNAME"]
  password = os.environ["LASTFM_PASSWORD"]
  passwordHash = pylast.md5(password)
  
  if not apiKey:
  	print "No Last.fm API Key was found."
  	sys.exit(3)
  
  if not apiSecret:
  	print "No Last.fm API Secret was found."
  	sys.exit(3)
  
  if not username:
  	print "No Last.fm username was found."
  	sys.exit(3)
  
  if not password:
  	print "No Last.fm password was found."
  	sys.exit(3)
  
  # load song details from JSON object
  songName = resultJson["metadata"]["music"][0]["title"]
  songArtist = resultJson["metadata"]["music"][0]["artists"][0]["name"]
  
  network = pylast.LastFMNetwork(api_key=apiKey, api_secret=apiSecret,
                                 username=username, password_hash=passwordHash)
  
  d = datetime.utcnow()
  unixtime = calendar.timegm(d.utctimetuple())
  network.scrobble(songArtist, songName, unixtime)
  
  
subject: Check for existing Last.fm creds before scrobbling