1 files changed, 11 insertions, 11 deletions
diff --git a/tests/custom_columns/models.py b/tests/custom_columns/models.py
index 575ca99a18..378a001820 100644
--- a/tests/custom_columns/models.py
+++ b/tests/custom_columns/models.py
@@ -19,32 +19,32 @@ from django.db import models
 
 
 class Author(models.Model):
-    Author_ID = models.AutoField(primary_key=True, db_column='Author ID')
-    first_name = models.CharField(max_length=30, db_column='firstname')
-    last_name = models.CharField(max_length=30, db_column='last')
+    Author_ID = models.AutoField(primary_key=True, db_column="Author ID")
+    first_name = models.CharField(max_length=30, db_column="firstname")
+    last_name = models.CharField(max_length=30, db_column="last")
 
     class Meta:
-        db_table = 'my_author_table'
-        ordering = ('last_name', 'first_name')
+        db_table = "my_author_table"
+        ordering = ("last_name", "first_name")
 
     def __str__(self):
-        return '%s %s' % (self.first_name, self.last_name)
+        return "%s %s" % (self.first_name, self.last_name)
 
 
 class Article(models.Model):
-    Article_ID = models.AutoField(primary_key=True, db_column='Article ID')
+    Article_ID = models.AutoField(primary_key=True, db_column="Article ID")
     headline = models.CharField(max_length=100)
-    authors = models.ManyToManyField(Author, db_table='my_m2m_table')
+    authors = models.ManyToManyField(Author, db_table="my_m2m_table")
     primary_author = models.ForeignKey(
         Author,
         models.SET_NULL,
-        db_column='Author ID',
-        related_name='primary_set',
+        db_column="Author ID",
+        related_name="primary_set",
         null=True,
     )
 
     class Meta:
-        ordering = ('headline',)
+        ordering = ("headline",)
 
     def __str__(self):
         return self.headline