diff --git a/common/lib/xmodule/xmodule/open_ended_grading_classes/peer_grading_service.py b/common/lib/xmodule/xmodule/open_ended_grading_classes/peer_grading_service.py
index 0b72ad7b6f..bd6cf0ef2c 100644
--- a/common/lib/xmodule/xmodule/open_ended_grading_classes/peer_grading_service.py
+++ b/common/lib/xmodule/xmodule/open_ended_grading_classes/peer_grading_service.py
@@ -160,4 +160,11 @@ class MockPeerGradingService(object):
                 ]}
 
     def get_data_for_location(self, problem_location, student_id):
-        return {"version": 1, "count_graded": 3, "count_required": 3, "success": True, "student_sub_count": 1, 'submissions_available' : 0}
+        return {
+            "version": 1,
+            "count_graded": 3,
+            "count_required": 3,
+            "success": True,
+            "student_sub_count": 1,
+            'submissions_available': 0,
+        }
diff --git a/common/lib/xmodule/xmodule/tests/__init__.py b/common/lib/xmodule/xmodule/tests/__init__.py
index 960f57c16f..4c8ff94f76 100644
--- a/common/lib/xmodule/xmodule/tests/__init__.py
+++ b/common/lib/xmodule/xmodule/tests/__init__.py
@@ -89,7 +89,13 @@ def get_test_system(course_id=SlashSeparatedCourseKey('org', 'course', 'run')):
         filestore=Mock(),
         debug=True,
         hostname="edx.org",
-        xqueue={'interface': None, 'callback_url': '/', 'default_queuename': 'testqueue', 'waittime': 10, 'construct_callback' : Mock(side_effect="/")},
+        xqueue={
+            'interface': None,
+            'callback_url': '/',
+            'default_queuename': 'testqueue',
+            'waittime': 10,
+            'construct_callback': Mock(side_effect="/"),
+        },
         node_path=os.environ.get("NODE_PATH", "/usr/local/lib/node_modules"),
         anonymous_student_id='student',
         open_ended_grading_interface=open_ended_grading_interface,