Remove workaround for old django-pyscss

This reverts the change[1] made earlier to workaround the issue caused
by usage of vendored version of six library in the django-pyscss
library.

The django-pyscss library no longer imports the vendored version of
six, since 2.0.3[2].

[1] 39f28ad5ed
[2] 1499332e1d

Change-Id: I22802b75d6a8d8f35930709e89d64dd65982cef0

.pylintrc

@@ -101,7 +101,7 @@ additional-builtins=_
 
 [typecheck]
 # List of module names for which member attributes should not be checked
-ignored-modules=six.moves,_MovedItems
+ignored-modules=
 
 [reports]
 # Tells whether to display a full report or only the messages

horizon/test/django_pyscss_fix/__init__.py

@@ -1,24 +0,0 @@
-# Licensed under the Apache License, Version 2.0 (the "License"); you may
-# not use this file except in compliance with the License. You may obtain
-# a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-# License for the specific language governing permissions and limitations
-# under the License.
-
-import sys
-
-import django
-import six
-import six.moves
-
-# Temporary workaround for a situation that django-pyscss depends on
-# a vendored version of six, django.utils.six which was dropped in Django 3.0.
-# TODO(amotoki): Drop the workaround once django-pyscss supports Django 3.0+.
-if django.VERSION[0] >= 3:
-    sys.modules['django.utils.six'] = six
-    sys.modules['django.utils.six.moves'] = six.moves

horizon/test/settings.py

@@ -51,7 +51,6 @@ INSTALLED_APPS = (
     'django.contrib.humanize',
     'django.contrib.auth',
     'django.contrib.contenttypes',
-    'horizon.test.django_pyscss_fix',
     'django_pyscss',
     'compressor',
     'horizon',

openstack_dashboard/django_pyscss_fix/__init__.py

@@ -12,21 +12,10 @@
 
 import logging
 import os
-import sys
-
-import django
-import six
-import six.moves
 
 from django.conf import settings
 from scss.grammar.expression import SassExpressionScanner
 
-# Temporary workaround for a situation that django-pyscss depends on
-# a vendored version of six, django.utils.six which was dropped in Django 3.0.
-# TODO(amotoki): Drop the workaround once django-pyscss supports Django 3.0+.
-if django.VERSION[0] >= 3:
-    sys.modules['django.utils.six'] = six
-    sys.modules['django.utils.six.moves'] = six.moves
 
 scss_asset_root = os.path.join(settings.STATIC_ROOT, 'scss', 'assets')
 LOG = logging.getLogger(__name__)

requirements.txt

@@ -19,7 +19,7 @@ debtcollector>=1.2.0 # Apache-2.0
 Django>=4.2,<4.3 # BSD
 django-compressor>=2.4.1 # MIT
 django-debreach>=1.4.2 # BSD License (2 clause)
-django-pyscss>=2.0.2 # BSD License (2 clause)
+django-pyscss>=2.0.3 # BSD License (2 clause)
 futurist>=1.2.0 # Apache-2.0
 iso8601>=0.1.11 # MIT
 keystoneauth1>=4.3.1 # Apache-2.0
@@ -43,7 +43,6 @@ python-swiftclient>=3.2.0 # Apache-2.0
 pytz>=2013.6 # MIT
 PyYAML>=6.0 # MIT
 requests>=2.25.1 # Apache-2.0
-six>=1.16.0 # MIT
 semantic-version>=2.3.1 # BSD
 XStatic>=1.0.3 # MIT License
 XStatic-Angular>=1.8.2.2 # MIT License