PEP8 cleanup

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

tests/admin_validation/tests.py

@@ -12,10 +12,12 @@ from .models import Song, Book, Album, TwoAlbumFKAndAnE, City
 class SongForm(forms.ModelForm):
     pass
 
+
 class ValidFields(admin.ModelAdmin):
     form = SongForm
     fields = ['title']
 
+
 class ValidFormFieldsets(admin.ModelAdmin):
     def get_form(self, request, obj=None, **kwargs):
         class ExtraFieldForm(SongForm):
@@ -28,6 +30,7 @@ class ValidFormFieldsets(admin.ModelAdmin):
         }),
     )
 
+
 class ValidationTestCase(TestCase):
 
     def test_readonly_and_editable(self):