Ticket #3505: contrib_auth.2.patch

contrib/auth/__init__.py

@@ -12 +12 @@
         mod = __import__(module, {}, {}, [attr])
     except ImportError, e:
         raise ImproperlyConfigured, 'Error importing authentication backend %s: "%s"' % (module, e)
+    except ValueError, e:
+        raise ValueError, e
     try:
         cls = getattr(mod, attr)
     except AttributeError:
@@ -22 +24 @@
     from django.conf import settings
     backends = []
     for backend_path in settings.AUTHENTICATION_BACKENDS:
         backends.append(load_backend(backend_path))
     return backends