From 66922a5f298e8b7c2e308f8e265af620d9ed0413 Mon Sep 17 00:00:00 2001
From: Benjamin Dauvergne <bdauvergne@entrouvert.com>
Date: Fri, 26 Feb 2016 13:18:36 +0100
Subject: [PATCH] app_settings: fix import of ImproperlyConfigured exception

As sys.modules is modified, global imports do not work.
---
 mellon/app_settings.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mellon/app_settings.py b/mellon/app_settings.py
index ecece59..1c64aff 100644
--- a/mellon/app_settings.py
+++ b/mellon/app_settings.py
@@ -1,5 +1,4 @@
 import sys
-from django.core.exceptions import ImproperlyConfigured
 
 
 class AppSettings(object):
@@ -40,6 +39,7 @@ class AppSettings(object):
         try:
             idps = settings.MELLON_IDENTITY_PROVIDERS
         except AttributeError:
+            from django.core.exceptions import ImproperlyConfigured
             raise ImproperlyConfigured('The MELLON_IDENTITY_PROVIDERS setting is mandatory')
         if isinstance(idps, dict):
             idps = [idps]