old_contents: import extract
  
  class artist:
      def __init__(self, id):
          data, song_data  = extract.get_artist_data(id)
          self.name = extract.get_artist_name(data)
          self.description = extract.get_artist_description(data)
          self.songs = extract.get_artist_songs(song_data)
          #to be added: search
  
new_contents: import extract
  
  class artist:
      def __init__(self, id):
          data, song_data  = extract.get_artist_data(id)
          self.name = extract.get_artist_name(data)
          self.description = extract.get_artist_description(data)
          self.songs = extract.get_artist_songs(song_data)
  
subject: Update artist.py