Fixing python-modernize issues.

openedx/core/djangoapps/theming/admin.py

@@ -1,6 +1,8 @@
 """
 Django admin page for theming models
 """
+from __future__ import absolute_import
+
 from django.contrib import admin
 
 from .models import SiteTheme

openedx/core/djangoapps/theming/apps.py

@@ -1,7 +1,9 @@
 
+from __future__ import absolute_import
+
 from django.apps import AppConfig
-from openedx.core.djangoapps.plugins.constants import ProjectType, PluginURLs
 
+from openedx.core.djangoapps.plugins.constants import PluginURLs, ProjectType
 
 plugin_urls_config = {PluginURLs.NAMESPACE: u'theming', PluginURLs.REGEX: r'^theming/'}
 

openedx/core/djangoapps/theming/checks.py

@@ -1,7 +1,10 @@
 """
 Settings validations for the theming app
 """
+from __future__ import absolute_import
+
 import os
+
 import six
 from django.conf import settings
 from django.core.checks import Error, Tags, register

openedx/core/djangoapps/theming/helpers_dirs.py

@@ -2,7 +2,10 @@
 Code which dynamically discovers comprehensive themes. Deliberately uses no Django settings,
 as the discovery happens during the initial setup of Django settings.
 """
+from __future__ import absolute_import
+
 import os
+
 from path import Path
 
 
@@ -127,7 +130,8 @@ class Theme(object):
         return hash((self.theme_dir_name, self.path))
 
     def __unicode__(self):
-        return u"<Theme: {name} at '{path}'>".format(name=self.name, path=self.path)
+        # pylint: disable=line-too-long
+        return u"<Theme: {name} at '{path}'>".format(name=self.name, path=self.path)  # xss-lint: disable=python-wrap-html
 
     def __repr__(self):
         return self.__unicode__()

openedx/core/djangoapps/theming/helpers_static.py

@@ -1,4 +1,6 @@
 
+from __future__ import absolute_import
+
 from django.contrib.staticfiles.storage import staticfiles_storage
 
 

openedx/core/djangoapps/theming/middleware.py

@@ -5,6 +5,8 @@ Note:
     This middleware depends on "django_sites_extensions" app
     So it must be added to INSTALLED_APPS in django settings files.
 """
+from __future__ import absolute_import
+
 from django.conf import settings
 
 from .models import SiteTheme

openedx/core/djangoapps/theming/models.py

@@ -1,6 +1,8 @@
 """
 Django models supporting the Comprehensive Theming subsystem
 """
+from __future__ import absolute_import
+
 from django.contrib.sites.models import Site
 from django.db import models
 

openedx/core/djangoapps/theming/paver_helpers.py

@@ -2,7 +2,8 @@
 This file contains helpers for paver commands, Django is not initialized in paver commands.
 So, django settings, models etc. can not be used here.
 """
-from __future__ import print_function
+from __future__ import absolute_import, print_function
+
 import os
 
 from path import Path

openedx/core/djangoapps/theming/template_loaders.py

@@ -1,6 +1,8 @@
 """
 Theming aware template loaders.
 """
+from __future__ import absolute_import
+
 from django.template.loaders.filesystem import Loader as FilesystemLoader
 
 from edxmako.makoloader import MakoLoader

openedx/core/djangoapps/theming/urls.py

@@ -2,12 +2,13 @@
 Defines URLs for theming views.
 """
 
+from __future__ import absolute_import
+
 from django.conf.urls import url
 
 from .helpers import is_comprehensive_theming_enabled
 from .views import ThemingAdministrationFragmentView
 
-
 if is_comprehensive_theming_enabled():
     urlpatterns = [
         url(