diff --git a/src/drf_yasg/utils.py b/src/drf_yasg/utils.py
index 83270ed..099bbb7 100644
--- a/src/drf_yasg/utils.py
+++ b/src/drf_yasg/utils.py
@@ -7,7 +7,7 @@ from decimal import Decimal
 from django.db import models
 from django.utils.encoding import force_text
 from rest_framework import serializers, status
-from rest_framework.mixins import DestroyModelMixin, RetrieveModelMixin, UpdateModelMixin, ListModelMixin
+from rest_framework.mixins import DestroyModelMixin, ListModelMixin, RetrieveModelMixin, UpdateModelMixin
 from rest_framework.parsers import FileUploadParser
 from rest_framework.request import is_form_media_type
 from rest_framework.settings import api_settings as rest_framework_settings
diff --git a/testproj/articles/views.py b/testproj/articles/views.py
index e0884a9..fadeca0 100644
--- a/testproj/articles/views.py
+++ b/testproj/articles/views.py
@@ -7,7 +7,7 @@ from rest_framework import viewsets
 # noinspection PyDeprecation
 from rest_framework.filters import OrderingFilter
 from rest_framework.pagination import LimitOffsetPagination
-from rest_framework.parsers import MultiPartParser, FileUploadParser
+from rest_framework.parsers import FileUploadParser, MultiPartParser
 from rest_framework.response import Response
 
 from articles import serializers
diff --git a/testproj/snippets/views.py b/testproj/snippets/views.py
index 95193b7..188db4a 100644
--- a/testproj/snippets/views.py
+++ b/testproj/snippets/views.py
@@ -4,7 +4,7 @@ from inflection import camelize
 from rest_framework import generics, status
 from rest_framework.generics import get_object_or_404
 from rest_framework.pagination import PageNumberPagination
-from rest_framework.parsers import FormParser, FileUploadParser
+from rest_framework.parsers import FileUploadParser, FormParser
 
 from drf_yasg import openapi
 from drf_yasg.inspectors import SwaggerAutoSchema