PEP8 cleanup

Signed-off-by: Jason Myers <jason@jasonamyers.com>

tests/admin_util/models.py

@@ -19,6 +19,7 @@ class Article(models.Model):
         return "nothing"
     test_from_model_with_override.short_description = "not What you Expect"
 
+
 @python_2_unicode_compatible
 class Count(models.Model):
     num = models.PositiveSmallIntegerField()
@@ -27,12 +28,15 @@ class Count(models.Model):
     def __str__(self):
         return six.text_type(self.num)
 
+
 class Event(models.Model):
     date = models.DateTimeField(auto_now_add=True)
 
+
 class Location(models.Model):
     event = models.OneToOneField(Event, verbose_name='awesome event')
 
+
 class Guest(models.Model):
     event = models.OneToOneField(Event)
     name = models.CharField(max_length=255)
@@ -40,5 +44,6 @@ class Guest(models.Model):
     class Meta:
         verbose_name = "awesome guest"
 
+
 class EventGuide(models.Model):
     event = models.ForeignKey(Event, on_delete=models.DO_NOTHING)