Fix lint

aleksis/apps/cursus/schema.py

@@ -283,10 +283,7 @@ class Query(graphene.ObjectType):
     def resolve_courses_of_teacher(root, info, teacher=None):
         if not has_person(info.context.user):
             raise PermissionDenied()
-        if teacher:
-            teacher = Person.objects.get(pk=teacher)
-        else:
-            teacher = info.context.user.person
+        teacher = Person.objects.get(pk=teacher) if teacher else info.context.user.person
         # FIXME: Permission checking. But maybe it's done in get_queryset
         return teacher.courses_as_teacher.all()