conf.py

from my_settings import Settings
 
MONGODB_HOST = 'localhost'
MONGODB_PORT = 27017
MONGODB_DB = 'events'
MONGODB_COLLECTION = 'events'
 
ROUTING_KEY = 'events'
EXCHANGE = 'events'
QUEUE = 'events'
TASK_PERIOD = 10
 
settings = Settings(__name__, 'EVENTS_')

my_settings.py

from django.utils.importlib import import_module
from django.conf import settings
 
 
class Settings(object):
    def __init__(self, module_name, prefix=''):
        self.module = import_module(module_name)
        self.prefix = prefix

    def __getattr__(self, name):
        p_name = ''.join((self.prefix, name))
        if hasattr(settings, p_name):
            return getattr(settings, p_name)
        return getattr(self.module, name)

    def __dir__(self):
        return dir(self.module) + dir(self.settings)

settings.py

# now you can override the settings using the prefix:
EVENTS_QUEUE = 'not-events'

views.py

from conf import settings
def whatever(request):
    assert settings.QUEUE == 'not-events'