class DefaultConfig():
    secret_key = "LONG_AND_RANDOM"
    tmdb_api_key = "THEMOVIEDB.ORG_API_KEY"

class DefaultConfig():
    secret_key = None  # Django secret key used for sessions. Make this a long random string and keep it a secret
    tmdb_api_key = None  # API key for The Movie Database (themoviedb.org).

Set default config values to none so user is forced to set them.
Set default config values to none so user is forced to set them.

Also document fields in the default config
