diff --git a/demo/demoproject/settings.py b/demo/demoproject/settings.py
index 97f0501..b0f88a3 100755
--- a/demo/demoproject/settings.py
+++ b/demo/demoproject/settings.py
@@ -138,7 +138,7 @@ if StrictVersion(get_version()) >= StrictVersion("1.8"):
     TEMPLATES = [
         {
             "BACKEND": "django.template.backends.django.DjangoTemplates",
-            "DIRS": [os.path.join(os.path.dirname(__file__), "templates"),],
+            "DIRS": [os.path.join(os.path.dirname(__file__), "templates")],
             "OPTIONS": {
                 "debug": DEBUG,
                 "context_processors": [
diff --git a/django_downloadview/api.py b/django_downloadview/api.py
index 933911f..1399aea 100644
--- a/django_downloadview/api.py
+++ b/django_downloadview/api.py
@@ -1,17 +1,18 @@
+# flake8: noqa
 """Declaration of API shortcuts."""
-from django_downloadview.files import HTTPFile, StorageFile, VirtualFile  # NoQA
-from django_downloadview.io import BytesIteratorIO, TextIteratorIO  # NoQA
-from django_downloadview.middlewares import BaseDownloadMiddleware  # NoQA
+from django_downloadview.files import HTTPFile, StorageFile, VirtualFile
+from django_downloadview.io import BytesIteratorIO, TextIteratorIO
+from django_downloadview.middlewares import BaseDownloadMiddleware
 from django_downloadview.middlewares import (
     DownloadDispatcherMiddleware,
     SmartDownloadMiddleware,
 )
-from django_downloadview.response import DownloadResponse  # NoQA
+from django_downloadview.response import DownloadResponse
 from django_downloadview.response import ProxiedDownloadResponse
-from django_downloadview.shortcuts import sendfile  # NoQA
-from django_downloadview.test import assert_download_response  # NoQA
+from django_downloadview.shortcuts import sendfile
+from django_downloadview.test import assert_download_response
 from django_downloadview.test import setup_view, temporary_media_root
-from django_downloadview.views import PathDownloadView  # NoQA
+from django_downloadview.views import PathDownloadView
 from django_downloadview.views import (
     BaseDownloadView,
     DownloadMixin,
diff --git a/tox.ini b/tox.ini
index 8a8bc55..6035e0b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -56,3 +56,4 @@ commands =
 
 [flake8]
 max-line-length = 99
+ignore = E203, W503