old_contents: # shows a user's playlists (need to be authenticated via oauth)
  
  import sys
  import os
  import spotipy
  import spotipy.util as util
  
  def show_tracks(results):
      for i, item in enumerate(tracks['items']):
          track = item['track']
          print("   %d %32.32s %s" % (i, track['artists'][0]['name'], track['name']))
  
  
  if __name__ == '__main__':
      if len(sys.argv) > 1:
          username = sys.argv[1]
      else:
          print("Whoops, need your username!")
          print("usage: python user_playlists_contents.py [username]")
          sys.exit()
  
      token = util.prompt_for_user_token(username)
  
      if token:
          top = 40
          sp = spotipy.Spotify(auth=token)
          playlists = sp.user_playlists(username)
          for playlist in playlists['items']:
              if playlist['owner']['id'] == username:
                  print()
                  print(playlist['name'])
                  print('  total tracks', playlist['tracks']['total'])
                  results = sp.user_playlist(username, playlist['id'], fields="tracks,next")
                  tracks = results['tracks']
                  show_tracks(tracks)
                  while tracks['next']:
                      tracks = sp.next(tracks)
                      show_tracks(tracks)
      else:
          print("Can't get token for", username)
  
  
new_contents: # shows a user's playlists (need to be authenticated via oauth)
  
  import sys
  import os
  import spotipy
  import spotipy.util as util
  
  def show_tracks(results):
      for i, item in enumerate(results['items']):
          track = item['track']
          print("   %d %32.32s %s" % (i, track['artists'][0]['name'], track['name']))
  
  
  if __name__ == '__main__':
      if len(sys.argv) > 1:
          username = sys.argv[1]
      else:
          print("Whoops, need your username!")
          print("usage: python user_playlists_contents.py [username]")
          sys.exit()
  
      token = util.prompt_for_user_token(username)
  
      if token:
          top = 40
          sp = spotipy.Spotify(auth=token)
          playlists = sp.user_playlists(username)
          for playlist in playlists['items']:
              if playlist['owner']['id'] == username:
                  print()
                  print(playlist['name'])
                  print('  total tracks', playlist['tracks']['total'])
                  results = sp.user_playlist(username, playlist['id'], fields="tracks,next")
                  tracks = results['tracks']
                  show_tracks(tracks)
                  while tracks['next']:
                      tracks = sp.next(tracks)
                      show_tracks(tracks)
      else:
          print("Can't get token for", username)
  
  
subject: Update user_playlists_contents.py