I want a Python key namespace utility that lets me do things like this...

gistfile1.py

# Import from an imaginary package I wish existed...
from keyspace import KeySpace, Key, Prefix


class MyKeys(KeySpace):
    prefix_users = Prefix('u')
    user_set = Key('users')


KEYS = MyKeys(prefix='prod', delim=':')


asset KEYS.prefix_users('shazow') == 'prod:u:shazow'
asset KEYS.user_set == 'prod:users'


def add_user(redis_client, username, data):
    redis_client.set(KEYS.prefix_users(username), data)
    redis_client.add(KEYS.user_set, username)


# BONUS:
def add_user(redis_client, username, data):
    model = MyKeys(redis_client, ...)
    model.prefix_users(username).set(data)
    model.user_set.add(username)