incr-297 (#20604)

* run python modernize

* run isort

lms/djangoapps/static_template_view/tests/test_views.py

 """
 Tests for static templates
 """
+from __future__ import absolute_import
+
 from django.conf import settings
-from django.urls import reverse
 from django.test import TestCase
+from django.urls import reverse
 
 from openedx.core.djangoapps.site_configuration.tests.test_util import with_site_configuration_context
 

lms/djangoapps/static_template_view/urls.py

@@ -2,6 +2,8 @@
 URLs for static_template_view app
 """
 
+from __future__ import absolute_import
+
 from django.conf import settings
 from django.conf.urls import url
 

lms/djangoapps/static_template_view/views.py

@@ -3,6 +3,8 @@
 # List of valid templates is explicitly managed for (short-term)
 # security reasons.
 
+from __future__ import absolute_import
+
 import mimetypes
 
 from django.conf import settings
@@ -11,8 +13,8 @@ from django.shortcuts import redirect
 from django.template import TemplateDoesNotExist
 from django.utils.safestring import mark_safe
 from django.views.decorators.csrf import ensure_csrf_cookie
-
 from mako.exceptions import TopLevelLookupException
+
 from edxmako.shortcuts import render_to_response, render_to_string
 from openedx.core.djangoapps.site_configuration import helpers as configuration_helpers
 from util.cache import cache_if_anonymous