Fix sorting of imports

tests/app/models.py

 from __future__ import unicode_literals
 
 from django.db import models
-
 from wagtail.core.models import Page
+
 from wagtailvideos.edit_handlers import VideoChooserPanel
 
 

tests/app/urls.py

@@ -6,7 +6,6 @@ from django.conf import settings
 from django.conf.urls import include
 from django.urls import path, re_path
 from django.views.static import serve
-
 from wagtail.admin import urls as wagtailadmin_urls
 from wagtail.core import urls as wagtail_urls
 

tests/test_admin_views.py

@@ -8,11 +8,11 @@ from django.core.files.uploadedfile import SimpleUploadedFile
 from django.template.defaultfilters import filesizeformat
 from django.test import TestCase, override_settings
 from django.urls import reverse
-
 from mock import patch
-from tests.utils import create_test_video_file
 from wagtail.core.models import Collection, GroupCollectionPermission
 from wagtail.tests.utils import WagtailTestUtils
+
+from tests.utils import create_test_video_file
 from wagtailvideos.models import Video