users/parameter.py

import config
from django.conf import settings

USERS_SELF_REGISTRATION = "USERS_SELF_REGISTRATION"
# USERS_MAIL_VALIDATION = "USERS_MAIL_VALIDATION"
# USERS_MAIL_INFORMATION = "USERS_MAIL_INFORMATION"


DEFAULTS = {
    USERS_SELF_REGISTRATION: False,
    # USERS_MAIL_VALIDATION: True,
    # USERS_MAIL_INFORMATION: True,
}


def get(key):
    # take data from config, settings or defaults
    try:
        data = getattr(config, key)
    except AttributeError:
        try:
            data = getattr(settings, key)
        except AttributeError:
            data = DEFAULTS.get(key)

    return data