1 files changed, 10 insertions, 10 deletions
diff --git a/tests/contenttypes_tests/models.py b/tests/contenttypes_tests/models.py
index 2e0640459f..5e40217c30 100644
--- a/tests/contenttypes_tests/models.py
+++ b/tests/contenttypes_tests/models.py
@@ -1,8 +1,6 @@
 from urllib.parse import quote
 
-from django.contrib.contenttypes.fields import (
-    GenericForeignKey, GenericRelation,
-)
+from django.contrib.contenttypes.fields import GenericForeignKey, GenericRelation
 from django.contrib.contenttypes.models import ContentType
 from django.contrib.sites.models import SiteManager
 from django.db import models
@@ -17,7 +15,7 @@ class Author(models.Model):
     name = models.CharField(max_length=100)
 
     def get_absolute_url(self):
-        return '/authors/%s/' % self.id
+        return "/authors/%s/" % self.id
 
 
 class Article(models.Model):
@@ -48,6 +46,7 @@ class FooWithoutUrl(models.Model):
     Fake model not defining ``get_absolute_url`` for
     ContentTypesTests.test_shortcut_view_without_get_absolute_url()
     """
+
     name = models.CharField(max_length=30, unique=True)
 
 
@@ -72,7 +71,7 @@ class FooWithBrokenAbsoluteUrl(FooWithoutUrl):
 
 class Question(models.Model):
     text = models.CharField(max_length=200)
-    answer_set = GenericRelation('Answer')
+    answer_set = GenericRelation("Answer")
 
 
 class Answer(models.Model):
@@ -82,19 +81,20 @@ class Answer(models.Model):
     question = GenericForeignKey()
 
     class Meta:
-        order_with_respect_to = 'question'
+        order_with_respect_to = "question"
 
 
 class Post(models.Model):
     """An ordered tag on an item."""
+
     title = models.CharField(max_length=200)
     content_type = models.ForeignKey(ContentType, models.CASCADE, null=True)
     object_id = models.PositiveIntegerField(null=True)
     parent = GenericForeignKey()
-    children = GenericRelation('Post')
+    children = GenericRelation("Post")
 
     class Meta:
-        order_with_respect_to = 'parent'
+        order_with_respect_to = "parent"
 
 
 class ModelWithNullFKToSite(models.Model):
@@ -103,7 +103,7 @@ class ModelWithNullFKToSite(models.Model):
     post = models.ForeignKey(Post, null=True, on_delete=models.CASCADE)
 
     def get_absolute_url(self):
-        return '/title/%s/' % quote(self.title)
+        return "/title/%s/" % quote(self.title)
 
 
 class ModelWithM2MToSite(models.Model):
@@ -111,4 +111,4 @@ class ModelWithM2MToSite(models.Model):
     sites = models.ManyToManyField(Site)
 
     def get_absolute_url(self):
-        return '/title/%s/' % quote(self.title)
+        return "/title/%s/" % quote(self.title)