Linting

apps/registration/tests.py

@@ -1,10 +1,9 @@
 import os
 
-from django.contrib.sites.models import Site
-
 from corres2math.tokens import email_validation_token
-from django.contrib.contenttypes.models import ContentType
 from django.contrib.auth.models import User
+from django.contrib.contenttypes.models import ContentType
+from django.contrib.sites.models import Site
 from django.core.management import call_command
 from django.test import TestCase
 from django.urls import reverse