1 files changed, 8 insertions, 4 deletions
diff --git a/tests/m2m_multiple/models.py b/tests/m2m_multiple/models.py
index 7a77044c2c..2146a89201 100644
--- a/tests/m2m_multiple/models.py
+++ b/tests/m2m_multiple/models.py
@@ -14,7 +14,7 @@ class Category(models.Model):
     name = models.CharField(max_length=20)
 
     class Meta:
-        ordering = ('name',)
+        ordering = ("name",)
 
     def __str__(self):
         return self.name
@@ -23,11 +23,15 @@ class Category(models.Model):
 class Article(models.Model):
     headline = models.CharField(max_length=50)
     pub_date = models.DateTimeField()
-    primary_categories = models.ManyToManyField(Category, related_name='primary_article_set')
-    secondary_categories = models.ManyToManyField(Category, related_name='secondary_article_set')
+    primary_categories = models.ManyToManyField(
+        Category, related_name="primary_article_set"
+    )
+    secondary_categories = models.ManyToManyField(
+        Category, related_name="secondary_article_set"
+    )
 
     class Meta:
-        ordering = ('pub_date',)
+        ordering = ("pub_date",)
 
     def __str__(self):
         return self.headline