diff --git a/course/tests.py b/course/tests.py
index 440e0553d..f0290cf45 100644
--- a/course/tests.py
+++ b/course/tests.py
@@ -413,7 +413,7 @@ def test_student_enroll_from_sis(self):
         # Sisu import should not remove manually enrolled students
         self.past_course_instance.enroll_student(self.user1)
         self.assertTrue(self.past_course_instance.is_student(self.user1))
-        response = self.client.post( # pylint: disable=unused-variable
+        response = self.client.post(
             reverse("enroll-students", kwargs={
                 'course_slug': self.course.url,
                 'instance_slug': self.past_course_instance.url,
@@ -427,7 +427,7 @@ def test_student_enroll_from_sis(self):
         self.past_course_instance.enroll_student(self.user2, from_sis=True)
         self.assertTrue(self.past_course_instance.is_student(self.user1))
         self.assertTrue(self.past_course_instance.is_student(self.user2))
-        response = self.client.post( # pylint: disable=unused-variable
+        response = self.client.post(
             reverse("enroll-students", kwargs={
                 'course_slug': self.course.url,
                 'instance_slug': self.past_course_instance.url,
diff --git a/exercise/templatetags/exercise.py b/exercise/templatetags/exercise.py
index 10c572180..4a2c781e7 100644
--- a/exercise/templatetags/exercise.py
+++ b/exercise/templatetags/exercise.py
@@ -80,7 +80,12 @@ def check_exercise_deadline_extensions(children, entry_name, is_module_specific=
     exercise_count = 0
     for exercise in children:
         # Module specific ToC page
-        if is_module_specific and exercise.parent and exercise.parent.name == entry_name and exercise.personal_deadline:
+        if (
+          is_module_specific
+          and exercise.parent
+          and exercise.parent.name == entry_name
+          and exercise.personal_deadline
+        ):
             exercise_count += 1
         # ToC page
         elif exercise.type != 'level' and not exercise.is_empty and exercise.submittable: