Fix formatting

Author: matijapretnar

web/courses/models.py

@@ -315,7 +315,9 @@ def student_statistics(self, student=None):
             parts = Part.objects.filter(problem__problem_set=self)
         else:
             students = User.objects.filter(id=student.id)
-            parts = Part.objects.filter(problem__problem_set=self, problem__visible=True)
+            parts = Part.objects.filter(
+                problem__problem_set=self, problem__visible=True
+            )
         outcomes = Outcome.group_dict(parts, students, ("id",), ())
         statistics = []
         for problem in self.problems.prefetch_related("parts"):

web/courses/views.py

@@ -100,8 +100,7 @@ def problem_set_detail(request, problem_set_pk):
     verify(request.user.can_view_problem_set(problem_set))
 
     user_attempts = request.user.attempts.filter(
-        part__problem__problem_set=problem_set,
-        part__problem__visible=True
+        part__problem__problem_set=problem_set, part__problem__visible=True
     )
     if request.user.is_teacher(problem_set.course):
         student_statistics = problem_set.student_statistics()