formatting

common/lib/capa/capa/capa_problem.py

@@ -242,11 +242,15 @@ class LoncapaProblem(object):
             return None
 
         # Get a list of timestamps of all queueing requests, then convert it to a DateTime object
-        queuetime_strs = [self.correct_map.get_queuetime_str(answer_id)
-                          for answer_id in self.correct_map
-                          if self.correct_map.is_queued(answer_id)]
-        queuetimes = [datetime.strptime(qt_str, xqueue_interface.dateformat)
-                      for qt_str in queuetime_strs]
+        queuetime_strs = [
+            self.correct_map.get_queuetime_str(answer_id)
+            for answer_id in self.correct_map
+            if self.correct_map.is_queued(answer_id)
+        ]
+        queuetimes = [
+            datetime.strptime(qt_str, xqueue_interface.dateformat)
+            for qt_str in queuetime_strs
+        ]
 
         return max(queuetimes)