diff --git a/graphene_django/tests/models.py b/graphene_django/tests/models.py
index 69b9a95..085a508 100644
--- a/graphene_django/tests/models.py
+++ b/graphene_django/tests/models.py
@@ -90,11 +90,13 @@ class CNNReporter(Reporter):
 
     objects = CNNReporterManager()
 
+
 class APNewsReporter(Reporter):
     """
     This class only inherits from Reporter for testing multi table inheritence
     similar to what you'd see in django-polymorphic
     """
+
     alias = models.CharField(max_length=30)
     objects = models.Manager()
 
diff --git a/graphene_django/tests/test_query.py b/graphene_django/tests/test_query.py
index a01e017..292d579 100644
--- a/graphene_django/tests/test_query.py
+++ b/graphene_django/tests/test_query.py
@@ -15,7 +15,16 @@ from ..compat import IntegerRangeField, MissingType
 from ..fields import DjangoConnectionField
 from ..types import DjangoObjectType
 from ..utils import DJANGO_FILTER_INSTALLED
-from .models import Article, CNNReporter, Film, FilmDetails, Person, Pet, Reporter, APNewsReporter
+from .models import (
+    Article,
+    CNNReporter,
+    Film,
+    FilmDetails,
+    Person,
+    Pet,
+    Reporter,
+    APNewsReporter,
+)
 
 
 def test_should_query_only_fields():
@@ -1076,7 +1085,7 @@ def test_model_inheritance_support_reverse_relationships():
         class Meta:
             model = Film
             fields = "__all__"
-    
+
     class ReporterType(DjangoObjectType):
         class Meta:
             model = Reporter
@@ -1090,7 +1099,7 @@ def test_model_inheritance_support_reverse_relationships():
             interfaces = (Node,)
             use_connection = True
             fields = "__all__"
-    
+
     class APNewsReporterType(DjangoObjectType):
         class Meta:
             model = APNewsReporter
@@ -1213,7 +1222,7 @@ def test_model_inheritance_support_local_relationships():
     """
     This test asserts that we can query local relationships for all Reporters and proxied Reporters and multi table Reporters.
     """
-    
+
     class PersonType(DjangoObjectType):
         class Meta:
             model = Person
@@ -1232,7 +1241,7 @@ def test_model_inheritance_support_local_relationships():
             interfaces = (Node,)
             use_connection = True
             fields = "__all__"
-    
+
     class APNewsReporterType(DjangoObjectType):
         class Meta:
             model = APNewsReporter
@@ -1246,10 +1255,7 @@ def test_model_inheritance_support_local_relationships():
         first_name="John", last_name="Doe", email="johndoe@example.com", a_choice=1
     )
 
-    
-    reporter_fan = Person.objects.create(
-        name="Reporter Fan"
-    )
+    reporter_fan = Person.objects.create(name="Reporter Fan")
 
     reporter.fans.add(reporter_fan)
     reporter.save()
@@ -1261,18 +1267,14 @@ def test_model_inheritance_support_local_relationships():
         a_choice=1,
         reporter_type=2,  # set this guy to be CNN
     )
-    cnn_fan = Person.objects.create(
-        name="CNN Fan"
-    )
+    cnn_fan = Person.objects.create(name="CNN Fan")
     cnn_reporter.fans.add(cnn_fan)
     cnn_reporter.save()
 
     ap_news_reporter = APNewsReporter.objects.create(
         first_name="John", last_name="Doe", email="johndoe@example.com", a_choice=1
     )
-    ap_news_fan = Person.objects.create(
-        name="AP News Fan"
-    )
+    ap_news_fan = Person.objects.create(name="AP News Fan")
     ap_news_reporter.fans.add(ap_news_fan)
     ap_news_reporter.save()
 
@@ -1368,6 +1370,7 @@ def test_model_inheritance_support_local_relationships():
     result = schema.execute(query)
     assert result.data == expected
 
+
 def test_should_resolve_get_queryset_connectionfields():
     reporter_1 = Reporter.objects.create(
         first_name="John", last_name="Doe", email="johndoe@example.com", a_choice=1
diff --git a/graphene_django/tests/test_utils.py b/graphene_django/tests/test_utils.py
index 5a4db8d..4e6861e 100644
--- a/graphene_django/tests/test_utils.py
+++ b/graphene_django/tests/test_utils.py
@@ -24,7 +24,11 @@ def test_get_reverse_fields_includes_proxied_models():
     cnn_reporter_fields = get_reverse_fields(CNNReporter, [])
     ap_news_reporter_fields = get_reverse_fields(APNewsReporter, [])
 
-    assert len(list(reporter_fields)) == len(list(cnn_reporter_fields)) == len(list(ap_news_reporter_fields))
+    assert (
+        len(list(reporter_fields))
+        == len(list(cnn_reporter_fields))
+        == len(list(ap_news_reporter_fields))
+    )
 
 
 def test_camelize():
diff --git a/graphene_django/utils/utils.py b/graphene_django/utils/utils.py
index 84f88b6..187442c 100644
--- a/graphene_django/utils/utils.py
+++ b/graphene_django/utils/utils.py
@@ -81,7 +81,7 @@ def get_local_fields(model):
         ):
             if field.name not in local_fields_dict:
                 local_fields_dict[field.name] = field
-    
+
     return list(local_fields_dict.items())