<filename>bridgekeeper/apps.py
from django.apps import AppConfig


class BridgekeeperConfig(AppConfig):
    name = 'bridgekeeper'

    def ready(self):
        from django.utils.module_loading import autodiscover_modules
        autodiscover_modules('permissions')

<filename>bridgekeeper/apps.py
from django.apps import AppConfig


class BridgekeeperConfig(AppConfig):
    name = 'bridgekeeper'

    def ready(self):
        from django.utils.module_loading import autodiscover_modules
        autodiscover_modules('permissions')
