Remove six and update lower-constraints appdirs

This patch removes the use of "six" as the package declares only
python3 support.
It also updates the appdirs lower-constraint to 1.4.0 to support
pip. This version is available on both centos8 and focal.
It also removes the linter related packages from lower-constraints.

Change-Id: I9337f1998749bc40737f2f0e2dcc406b6f3a0ddf

designateclient/client.py

@@ -16,17 +16,15 @@
 
 import abc
 
-import six
-from six.moves.urllib import parse
 from stevedore import extension
+from urllib import parse
 
 from oslo_serialization import jsonutils
 
 from designateclient import exceptions
 
 
-@six.add_metaclass(abc.ABCMeta)
-class Controller(object):
+class Controller(object, metaclass=abc.ABCMeta):
 
     def __init__(self, client):
         self.client = client
@@ -89,8 +87,7 @@ class Controller(object):
         return body
 
 
-@six.add_metaclass(abc.ABCMeta)
-class CrudController(Controller):
+class CrudController(Controller, metaclass=abc.ABCMeta):
 
     @abc.abstractmethod
     def list(self, *args, **kw):
@@ -132,6 +129,6 @@ def Client(version, *args, **kwargs):  # noqa
     versions = get_versions()
     if version not in versions:
         msg = 'Version %s is not supported, use one of (%s)' % (
-            version, list(six.iterkeys(versions)))
+            version, list(versions.keys()))
         raise exceptions.UnsupportedVersion(msg)
     return versions[version](*args, **kwargs)

designateclient/functionaltests/models.py

@@ -13,7 +13,6 @@ 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 six
 from tempest.lib.cli import output_parser
 
 
@@ -67,7 +66,7 @@ class FieldValueModel(Model):
 class ListEntryModel(Model):
 
     def __init__(self, fields, values):
-        for k, v in six.moves.zip(fields, values):
+        for k, v in zip(fields, values):
             setattr(self, k, v)
 
 

designateclient/tests/base.py

@@ -20,8 +20,7 @@ from keystoneauth1 import session as keystone_session
 from oslo_serialization import jsonutils
 from oslotest import base as test
 from requests_mock.contrib import fixture as req_fixture
-import six
-from six.moves.urllib import parse as urlparse
+from urllib import parse as urlparse
 
 from designateclient import client
 from designateclient.utils import AdapterWithTimeout
@@ -132,7 +131,7 @@ class APITestCase(TestCase):
         parts = urlparse.urlparse(self.requests.last_request.url)
         qs = urlparse.parse_qs(parts.query, keep_blank_values=True)
 
-        for k, v in six.iteritems(kwargs):
+        for k, v in kwargs.items():
             self.assertIn(k, qs)
             self.assertIn(v, qs[k])
 

designateclient/utils.py

@@ -17,7 +17,6 @@
 import uuid
 
 from keystoneauth1 import adapter
-import six
 
 from designateclient import exceptions
 
@@ -64,8 +63,7 @@ def get_columns(data):
     def _seen(col):
         columns.add(str(col))
 
-    six.moves.map(lambda item: six.moves.map(_seen,
-                  list(six.iterkeys(item))), data)
+    map(lambda item: map(_seen, list(item.keys())), data)
     return list(columns)
 
 

designateclient/v2/cli/blacklists.py

@@ -17,7 +17,6 @@
 import logging
 
 from osc_lib.command import command
-import six
 
 from designateclient import utils
 from designateclient.v2.cli import common
@@ -70,7 +69,7 @@ class ShowBlacklistCommand(command.ShowOne):
         common.set_all_common_headers(client, parsed_args)
         data = client.blacklists.get(parsed_args.id)
         _format_blacklist(data)
-        return six.moves.zip(*sorted(six.iteritems(data)))
+        return zip(*sorted(data.items()))
 
 
 class CreateBlacklistCommand(command.ShowOne):
@@ -95,7 +94,7 @@ class CreateBlacklistCommand(command.ShowOne):
             parsed_args.pattern, parsed_args.description)
 
         _format_blacklist(data)
-        return six.moves.zip(*sorted(six.iteritems(data)))
+        return zip(*sorted(data.items()))
 
 
 class SetBlacklistCommand(command.ShowOne):
@@ -132,7 +131,7 @@ class SetBlacklistCommand(command.ShowOne):
         updated = client.blacklists.update(parsed_args.id, data)
 
         _format_blacklist(updated)
-        return six.moves.zip(*sorted(six.iteritems(updated)))
+        return zip(*sorted(updated.items()))
 
 
 class DeleteBlacklistCommand(command.Command):

designateclient/v2/cli/common.py

@@ -13,7 +13,6 @@
 # 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 six
 
 
 def add_all_projects_option(parser):
@@ -71,5 +70,5 @@ def set_all_common_headers(client, parsed_args):
         set_edit_managed(client, parsed_args.edit_managed)
 
     if parsed_args.sudo_project_id is not None and \
-            isinstance(parsed_args.sudo_project_id, six.string_types):
+            isinstance(parsed_args.sudo_project_id, str):
         set_sudo_project_id(client, parsed_args.sudo_project_id)

designateclient/v2/cli/quotas.py

@@ -18,7 +18,6 @@ import logging
 
 from cliff import command
 from cliff import show
-import six
 
 from designateclient.v2.cli import common
 
@@ -60,7 +59,7 @@ class ListQuotasCommand(show.ShowOne):
             common.set_all_projects(client, True)
 
         data = client.quotas.list(proj_id)
-        return six.moves.zip(*sorted(six.iteritems(data)))
+        return zip(*sorted(data.items()))
 
 
 class SetQuotasCommand(show.ShowOne):
@@ -104,7 +103,7 @@ class SetQuotasCommand(show.ShowOne):
 
         updated = client.quotas.update(proj_id, quotas)
 
-        return six.moves.zip(*sorted(six.iteritems(updated)))
+        return zip(*sorted(updated.items()))
 
 
 class ResetQuotasCommand(command.Command):

designateclient/v2/cli/recordsets.py

@@ -18,7 +18,6 @@ import argparse
 import logging
 
 from osc_lib.command import command
-import six
 
 from designateclient import utils
 from designateclient.v2.cli import common
@@ -135,7 +134,7 @@ class ShowRecordSetCommand(command.ShowOne):
         data = client.recordsets.get(parsed_args.zone_id, parsed_args.id)
 
         _format_recordset(data)
-        return six.moves.zip(*sorted(six.iteritems(data)))
+        return zip(*sorted(data.items()))
 
 
 class CreateRecordSetCommand(command.ShowOne):
@@ -182,7 +181,7 @@ class CreateRecordSetCommand(command.ShowOne):
             ttl=parsed_args.ttl)
 
         _format_recordset(data)
-        return six.moves.zip(*sorted(six.iteritems(data)))
+        return zip(*sorted(data.items()))
 
 
 class SetRecordSetCommand(command.ShowOne):
@@ -246,7 +245,7 @@ class SetRecordSetCommand(command.ShowOne):
 
         _format_recordset(updated)
 
-        return six.moves.zip(*sorted(six.iteritems(updated)))
+        return zip(*sorted(updated.items()))
 
 
 class DeleteRecordSetCommand(command.ShowOne):
@@ -270,4 +269,4 @@ class DeleteRecordSetCommand(command.ShowOne):
         LOG.info('RecordSet %s was deleted', parsed_args.id)
 
         _format_recordset(data)
-        return six.moves.zip(*sorted(six.iteritems(data)))
+        return zip(*sorted(data.items()))

designateclient/v2/cli/reverse.py

@@ -17,7 +17,6 @@
 import logging
 
 from osc_lib.command import command
-import six
 
 from designateclient import utils
 from designateclient.v2.cli import common
@@ -71,7 +70,7 @@ class ShowFloatingIPCommand(command.ShowOne):
         common.set_all_common_headers(client, parsed_args)
         data = client.floatingips.get(parsed_args.floatingip_id)
         _format_floatingip(data)
-        return six.moves.zip(*sorted(six.iteritems(data)))
+        return zip(*sorted(data.items()))
 
 
 class SetFloatingIPCommand(command.ShowOne):
@@ -119,7 +118,7 @@ class SetFloatingIPCommand(command.ShowOne):
             parsed_args.ttl)
 
         _format_floatingip(fip)
-        return six.moves.zip(*sorted(six.iteritems(fip)))
+        return zip(*sorted(fip.items()))
 
 
 class UnsetFloatingIPCommand(command.Command):

designateclient/v2/cli/service_statuses.py

@@ -17,7 +17,6 @@
 import logging
 
 from osc_lib.command import command
-import six
 
 from designateclient import utils
 from designateclient.v2.cli import common
@@ -91,4 +90,4 @@ class ShowServiceStatusCommand(command.ShowOne):
         data = client.service_statuses.get(parsed_args.id)
 
         _format_status(data)
-        return six.moves.zip(*sorted(six.iteritems(data)))
+        return zip(*sorted(data.items()))

designateclient/v2/cli/tlds.py

@@ -17,7 +17,6 @@
 import logging
 
 from osc_lib.command import command
-import six
 
 from designateclient import utils
 from designateclient.v2.cli import common
@@ -75,7 +74,7 @@ class ShowTLDCommand(command.ShowOne):
         common.set_all_common_headers(client, parsed_args)
         data = client.tlds.get(parsed_args.id)
         _format_tld(data)
-        return six.moves.zip(*sorted(six.iteritems(data)))
+        return zip(*sorted(data.items()))
 
 
 class CreateTLDCommand(command.ShowOne):
@@ -96,7 +95,7 @@ class CreateTLDCommand(command.ShowOne):
         common.set_all_common_headers(client, parsed_args)
         data = client.tlds.create(parsed_args.name, parsed_args.description)
         _format_tld(data)
-        return six.moves.zip(*sorted(six.iteritems(data)))
+        return zip(*sorted(data.items()))
 
 
 class SetTLDCommand(command.ShowOne):
@@ -131,7 +130,7 @@ class SetTLDCommand(command.ShowOne):
 
         data = client.tlds.update(parsed_args.id, data)
         _format_tld(data)
-        return six.moves.zip(*sorted(six.iteritems(data)))
+        return zip(*sorted(data.items()))
 
 
 class DeleteTLDCommand(command.Command):

designateclient/v2/cli/tsigkeys.py

@@ -17,7 +17,6 @@
 import logging
 
 from osc_lib.command import command
-import six
 
 from designateclient import utils
 from designateclient.v2.cli import common
@@ -83,7 +82,7 @@ class ShowTSIGKeyCommand(command.ShowOne):
         common.set_all_common_headers(client, parsed_args)
         data = client.tsigkeys.get(parsed_args.id)
         _format_tsigkey(data)
-        return six.moves.zip(*sorted(six.iteritems(data)))
+        return zip(*sorted(data.items()))
 
 
 class CreateTSIGKeyCommand(command.ShowOne):
@@ -111,7 +110,7 @@ class CreateTSIGKeyCommand(command.ShowOne):
                                       parsed_args.secret, parsed_args.scope,
                                       parsed_args.resource_id)
         _format_tsigkey(data)
-        return six.moves.zip(*sorted(six.iteritems(data)))
+        return zip(*sorted(data.items()))
 
 
 class SetTSIGKeyCommand(command.ShowOne):
@@ -147,7 +146,7 @@ class SetTSIGKeyCommand(command.ShowOne):
 
         data = client.tsigkeys.update(parsed_args.id, data)
         _format_tsigkey(data)
-        return six.moves.zip(*sorted(six.iteritems(data)))
+        return zip(*sorted(data.items()))
 
 
 class DeleteTSIGKeyCommand(command.Command):

designateclient/v2/cli/zones.py

@@ -18,7 +18,6 @@ import logging
 
 from osc_lib.command import command
 from osc_lib import exceptions as osc_exc
-import six
 
 from designateclient import utils
 from designateclient.v2.cli import common
@@ -121,7 +120,7 @@ class ShowZoneCommand(command.ShowOne):
         data = client.zones.get(parsed_args.id)
 
         _format_zone(data)
-        return six.moves.zip(*sorted(six.iteritems(data)))
+        return zip(*sorted(data.items()))
 
 
 class CreateZoneCommand(command.ShowOne):
@@ -186,7 +185,7 @@ class CreateZoneCommand(command.ShowOne):
             parsed_args.name, parsed_args.type, **payload)
 
         _format_zone(data)
-        return six.moves.zip(*sorted(six.iteritems(data)))
+        return zip(*sorted(data.items()))
 
 
 class SetZoneCommand(command.ShowOne):
@@ -231,7 +230,7 @@ class SetZoneCommand(command.ShowOne):
 
         updated = client.zones.update(parsed_args.id, data)
         _format_zone(updated)
-        return six.moves.zip(*sorted(six.iteritems(updated)))
+        return zip(*sorted(updated.items()))
 
 
 class DeleteZoneCommand(command.ShowOne):
@@ -254,7 +253,7 @@ class DeleteZoneCommand(command.ShowOne):
         LOG.info('Zone %s was deleted', parsed_args.id)
 
         _format_zone(data)
-        return six.moves.zip(*sorted(six.iteritems(data)))
+        return zip(*sorted(data.items()))
 
 
 class AbandonZoneCommand(command.Command):
@@ -323,7 +322,7 @@ class CreateTransferRequestCommand(command.ShowOne):
         data = client.zone_transfers.create_request(
             parsed_args.zone_id, parsed_args.target_project_id,
             parsed_args.description)
-        return six.moves.zip(*sorted(six.iteritems(data)))
+        return zip(*sorted(data.items()))
 
 
 class ListTransferRequestsCommand(command.Lister):
@@ -368,7 +367,7 @@ class ShowTransferRequestCommand(command.ShowOne):
 
         data = client.zone_transfers.get_request(parsed_args.id)
 
-        return six.moves.zip(*sorted(six.iteritems(data)))
+        return zip(*sorted(data.items()))
 
 
 class SetTransferRequestCommand(command.ShowOne):
@@ -398,7 +397,7 @@ class SetTransferRequestCommand(command.ShowOne):
             data['description'] = parsed_args.description
 
         updated = client.zone_transfers.update_request(parsed_args.id, data)
-        return six.moves.zip(*sorted(six.iteritems(updated)))
+        return zip(*sorted(updated.items()))
 
 
 class DeleteTransferRequestCommand(command.Command):
@@ -444,7 +443,7 @@ class AcceptTransferRequestCommand(command.ShowOne):
 
         data = client.zone_transfers.accept_request(
             parsed_args.transfer_id, parsed_args.key)
-        return six.moves.zip(*sorted(six.iteritems(data)))
+        return zip(*sorted(data.items()))
 
 
 class ListTransferAcceptsCommand(command.Lister):
@@ -489,7 +488,7 @@ class ShowTransferAcceptCommand(command.ShowOne):
 
         data = client.zone_transfers.get_accept(parsed_args.id)
 
-        return six.moves.zip(*sorted(six.iteritems(data)))
+        return zip(*sorted(data.items()))
 
 
 class ExportZoneCommand(command.ShowOne):
@@ -514,7 +513,7 @@ class ExportZoneCommand(command.ShowOne):
 
         LOG.info('Zone Export %s was created', data['id'])
 
-        return six.moves.zip(*sorted(six.iteritems(data)))
+        return zip(*sorted(data.items()))
 
 
 class ListZoneExportsCommand(command.Lister):
@@ -567,7 +566,7 @@ class ShowZoneExportCommand(command.ShowOne):
             parsed_args.zone_export_id)
         _format_zone_export_record(data)
 
-        return six.moves.zip(*sorted(six.iteritems(data)))
+        return zip(*sorted(data.items()))
 
 
 class DeleteZoneExportCommand(command.Command):
@@ -640,7 +639,7 @@ class ImportZoneCommand(command.ShowOne):
 
         LOG.info('Zone Import %s was created', data['id'])
 
-        return six.moves.zip(*sorted(six.iteritems(data)))
+        return zip(*sorted(data.items()))
 
 
 class ListZoneImportsCommand(command.Lister):
@@ -694,7 +693,7 @@ class ShowZoneImportCommand(command.ShowOne):
             parsed_args.zone_import_id)
         _format_zone_import_record(data)
 
-        return six.moves.zip(*sorted(six.iteritems(data)))
+        return zip(*sorted(data.items()))
 
 
 class DeleteZoneImportCommand(command.Command):

designateclient/v2/recordsets.py

@@ -14,7 +14,6 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 from oslo_utils import uuidutils
-import six
 
 from designateclient.v2.base import V2Controller
 from designateclient.v2 import utils as v2_utils
@@ -25,7 +24,7 @@ class RecordSetController(V2Controller):
         zone_info = None
 
         # If we get a zone name we'll need to get the ID of it before POST.
-        if isinstance(zone, six.string_types) and not \
+        if isinstance(zone, str) and not \
            uuidutils.is_uuid_like(zone):
             zone_info = self.client.zones.get(zone)
         elif isinstance(zone, dict):

designateclient/v2/utils.py

@@ -15,10 +15,8 @@
 # under the License.
 
 from oslo_utils import uuidutils
-from six import iteritems
-from six import iterkeys
-from six.moves.urllib.parse import parse_qs
-from six.moves.urllib.parse import urlparse
+from urllib.parse import parse_qs
+from urllib.parse import urlparse
 
 from designateclient import exceptions
 
@@ -51,7 +49,7 @@ def parse_query_from_url(url):
     :return: dict
     """
     values = parse_qs(urlparse(url)[4])
-    return {k: values[k][0] for k in iterkeys(values)}
+    return {k: values[k][0] for k in values.keys()}
 
 
 def get_all(function, criterion=None, args=None):
@@ -70,7 +68,7 @@ def get_all(function, criterion=None, args=None):
     returned_data = data
     while True:
         if data.next_page:
-            for k, v in iteritems(data.next_link_criterion):
+            for k, v in data.next_link_criterion.items():
                 criterion[k] = v
             data = function(*args, criterion=criterion)
             returned_data.extend(data)

lower-constraints.txt

@@ -1,4 +1,4 @@
-appdirs==1.3.0
+appdirs==1.4.0
 asn1crypto==0.23.0
 Babel==2.3.4
 cffi==1.14.0
@@ -23,7 +23,6 @@ jsonpointer==1.13
 jsonschema==2.6.0
 keystoneauth1==3.4.0
 linecache2==1.0.0
-mccabe==0.6.0
 monotonic==0.6
 mox3==0.20.0
 msgpack-python==0.4.0
@@ -45,11 +44,9 @@ oslo.utils==3.33.0
 oslotest==3.2.0
 paramiko==2.0.0
 pbr==2.0.0
-pep8==1.5.7
 prettytable==0.7.2
 pyasn1==0.1.8
 pycparser==2.18
-pyflakes==2.1.0
 pyinotify==0.9.6
 pyparsing==2.1.0
 pyperclip==1.5.27
@@ -64,7 +61,6 @@ requests-mock==1.2.0
 requestsexceptions==1.2.0
 rfc3986==0.3.1
 simplejson==3.5.1
-six==1.10.0
 stevedore==1.20.0
 tempest==17.1.0
 stestr==2.0.0

requirements.txt

@@ -9,6 +9,5 @@ oslo.utils>=3.33.0 # Apache-2.0
 pbr!=2.1.0,>=2.0.0 # Apache-2.0
 keystoneauth1>=3.4.0 # Apache-2.0
 requests>=2.14.2 # Apache-2.0
-six>=1.10.0 # MIT
 stevedore>=1.20.0 # Apache-2.0
 debtcollector>=1.2.0 # Apache-2.0