diff --git a/base/messages.py b/base/messages.py
index 4e15d59..c98e0e0 100644
--- a/base/messages.py
+++ b/base/messages.py
@@ -150,11 +150,13 @@ SUCCESS_CODE = {
     "3038": "Status has been changed successfully.",
     # notification read
     "3039": "Notification read successfully",
+    # start article
     "3040": "Start article successfully",
     # complete article
     "3041": "Article completed successfully",
     # submit assessment successfully
     "3042": "Assessment completed successfully",
+    # read article
     "3043": "Read article card successfully",
     # remove guardian code request
     "3044": "Remove guardian code request successfully",
diff --git a/junior/models.py b/junior/models.py
index 180b425..12d8476 100644
--- a/junior/models.py
+++ b/junior/models.py
@@ -167,7 +167,8 @@ class JuniorArticle(models.Model):
     Survey Options model
     """
     # associated junior with the task
-    junior = models.OneToOneField(Junior, on_delete=models.CASCADE, related_name='juniors_article', verbose_name='Junior')
+    junior = models.OneToOneField(Junior, on_delete=models.CASCADE, related_name='juniors_article',
+                                  verbose_name='Junior')
     article = models.ForeignKey(Article, on_delete=models.CASCADE, related_name='junior_articles_details')
     # article completed"""
     is_completed = models.BooleanField(default=False)
@@ -184,7 +185,8 @@ class JuniorArticleCard(models.Model):
     Survey Options model
     """
     # associated junior with the task
-    junior = models.ForeignKey(Junior, on_delete=models.CASCADE, related_name='juniors_article_card', verbose_name='Junior')
+    junior = models.ForeignKey(Junior, on_delete=models.CASCADE, related_name='juniors_article_card',
+                               verbose_name='Junior')
     article = models.ForeignKey(Article, on_delete=models.CASCADE, related_name='junior_articles_detail')
     article_card = models.ForeignKey(ArticleCard, on_delete=models.CASCADE, related_name='junior_article_card')
 
diff --git a/junior/views.py b/junior/views.py
index 8f4e53d..b41d2aa 100644
--- a/junior/views.py
+++ b/junior/views.py
@@ -260,7 +260,8 @@ class RemoveJuniorAPIView(views.APIView):
             junior_id = self.request.GET.get('id')
             guardian = Guardian.objects.filter(user__email=self.request.user).last()
             # fetch junior query
-            junior_queryset = Junior.objects.filter(id=junior_id, guardian_code__icontains=str(guardian.guardian_code)).last()
+            junior_queryset = Junior.objects.filter(id=junior_id,
+                                                    guardian_code__icontains=str(guardian.guardian_code)).last()
             if junior_queryset:
                 # use RemoveJuniorSerializer serializer
                 serializer = RemoveJuniorSerializer(junior_queryset, data=request.data, partial=True)