import logging from importlib import import_module from django.conf import settings print logging, logging.__name__ logger = logging.getLogger(__name__) signal_modules = {} for app in settings.INSTALLED_APPS: signals_module = '%s.signals' % app try: signal_modules[app] = import_module(signals_module) except ImportError as e: logger.warning( 'failed to import "%s", reason: %s' % (signals_module, str(e)))