new_contents: import sys
  import spotipy
  import spotipy.util as util
  
  scope = 'user-library-read'
  
  if len(sys.argv) > 1:
  	user = sys.argv[1]
  else:
  	print "Usage: %s username" % (sys.argv[0],)
  	sys.exit()
  
  
  usageToken = util.prompt_for_user_token(user, scope)
  
  if usageToken:
  	sp = spotipy.Spotify(auth=usageToken)
  	results = sp.current_user_saved_tracks()
  	for item in results['items']:
  		track = item['track']
  		print track['name'] + ' - ' + track['artists'][0]['name']
  else:
  	print "Could not retrieve token for ", user
  
subject: Create example authentication script