diff --git a/channels/routing.py b/channels/routing.py
index 27fdeaba..75c8c42e 100644
--- a/channels/routing.py
+++ b/channels/routing.py
@@ -4,7 +4,7 @@
 from django.conf import settings
 from django.core.exceptions import ImproperlyConfigured
 from django.urls.exceptions import Resolver404
-from django.urls.resolvers import RegexPattern, RoutePattern, URLResolver, URLPattern
+from django.urls.resolvers import RegexPattern, RoutePattern, URLPattern, URLResolver
 
 """
 All Routing instances inside this file are also valid ASGI applications - with
diff --git a/tests/conftest.py b/tests/conftest.py
index 3579749e..27f84603 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,5 +1,6 @@
-import pytest
 import sys
+
+import pytest
 from django.conf import settings
 
 
diff --git a/tests/test_routing.py b/tests/test_routing.py
index e79444d3..422f1363 100644
--- a/tests/test_routing.py
+++ b/tests/test_routing.py
@@ -307,6 +307,7 @@ async def test_url_router_nesting_by_include():
     Tests that nested URLRouters is constructed by include function.
     """
     import sys
+
     from django.urls import include
     from django.urls import reverse as django_reverse
 
@@ -449,6 +450,7 @@ async def test_url_router_deep_nesting_by_include():
     Tests that deep nested URLRouters is constructed by include function.
     """
     import sys
+
     from django.urls import include
     from django.urls import reverse as django_reverse