Put quick check so we don't load course modules on init unless we're actually running in Django

common/lib/xmodule/xmodule/modulestore/django.py

@@ -5,8 +5,8 @@ Passes settings.MODULESTORE as kwargs to MongoModuleStore
 """
 
 from __future__ import absolute_import
-
 from importlib import import_module
+from os import environ
 
 from django.conf import settings
 
@@ -44,6 +44,7 @@ def modulestore(name='default'):
 
     return _MODULESTORES[name]
 
-# Initialize the modulestores immediately
-for store_name in settings.MODULESTORE:
-    modulestore(store_name)
+if 'DJANGO_SETTINGS_MODULE' in environ:
+    # Initialize the modulestores immediately
+    for store_name in settings.MODULESTORE:
+        modulestore(store_name)