Moved migration exception classes to shared module

Thanks Aymeric Augustin for the review.

1 files changed, 2 insertions, 2 deletions

diff --git a/tests/migrations/test_loader.py b/tests/migrations/test_loader.py
index b189da0721..5574564f0b 100644
--- a/tests/migrations/test_loader.py
+++ b/tests/migrations/test_loader.py
@@ -3,8 +3,8 @@ from __future__ import unicode_literals
 from unittest import skipIf
 
 from django.db import connection, connections
-from django.db.migrations.graph import NodeNotFoundError
-from django.db.migrations.loader import AmbiguityError, MigrationLoader
+from django.db.migrations.exceptions import AmbiguityError, NodeNotFoundError
+from django.db.migrations.loader import MigrationLoader
 from django.db.migrations.recorder import MigrationRecorder
 from django.test import TestCase, modify_settings, override_settings
 from django.utils import six