NAN = 'nan'

ACTOR_FEATURE_LIST = ['actor_id', 'actor_name']
ACTOR_ID = 'actor_id'
ACTOR_NAME = 'actor_name'

DIRECTOR_FEATURE_LIST = ['director_id', 'director_name']
DIRECTOR_ID = 'director_id'
DIRECTOR_NAME = 'director_name'

WRITER_FEATURE_LIST = ['writer_id', 'writer_name']
WRITER_ID = 'writer_id'
WRITER_NAME = 'writer_name'

GENRE_FEATURE_LIST = ['genre_id', 'genre_name']
GENRE_ID = 'genre_id'
GENRE_NAME = 'genre_name'

