"Utilities for loading models and the modules that contain them."

from django.conf import settings
from django.core.apps import AppCache, cache
from django.core.exceptions import ImproperlyConfigured
from django.utils.datastructures import SortedDict
from django.utils.importlib import import_module
from django.utils.module_loading import module_has_submodule
from django.core.apps import App

import imp
import sys
import os
import threading

__all__ = ('get_apps', 'get_app', 'get_models', 'get_model', 'register_models',
        'load_app', 'app_cache_ready')

# These methods were always module level, so are kept that way for backwards
# compatibility.
get_apps = cache.get_apps
get_app = cache.get_app
get_app_errors = cache.get_app_errors
get_models = cache.get_models
get_model = cache.get_model
register_models = cache.register_models
load_app = cache.load_app
app_cache_ready = cache.app_cache_ready