diff --git a/graphene/contrib/django/types.py b/graphene/contrib/django/types.py
index 55b76fa7..b5097c72 100644
--- a/graphene/contrib/django/types.py
+++ b/graphene/contrib/django/types.py
@@ -72,6 +72,7 @@ class DjangoInterface(six.with_metaclass(
 
 
 class DjangoConnection(Connection):
+
     @classmethod
     def from_list(cls, iterable, *args, **kwargs):
         iterable = maybe_queryset(iterable)
diff --git a/graphene/relay/types.py b/graphene/relay/types.py
index 3969a09e..9fa673ef 100644
--- a/graphene/relay/types.py
+++ b/graphene/relay/types.py
@@ -2,6 +2,7 @@ import inspect
 import warnings
 from collections import Iterable
 from functools import wraps
+
 from graphql_relay.connection.arrayconnection import connection_from_list
 from graphql_relay.node.node import to_global_id
 
diff --git a/setup.cfg b/setup.cfg
index 11382a78..21db934b 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -4,3 +4,6 @@ max-line-length = 120
 
 [coverage:run]
 omit = core/ntypes/tests/*
+
+[isort]
+known_first_party=graphene