Fix pylint checks

Change-Id: I784ee29952fc4cc1f605b60023a0c7ad30aef2e2
Partial-Bug: #1696455

.pylintrc

@@ -44,7 +44,7 @@ symbols=no
 # --enable=similarities". If you want to run only the classes checker, but have
 # no Warning level messages displayed, use"--disable=all --enable=classes
 # --disable=W"
-disable=W,C,R,E1002
+disable=W,C,R,E1002,no-member
 
 
 [REPORTS]

freezer/main.py

@@ -64,6 +64,7 @@ def freezer_main(backup_args):
             backup_args.__dict__)
 
     if backup_args.storages:
+        # pylint: disable=abstract-class-instantiated
         storage = multiple.MultipleStorage(
             [storage_from_dict(x, max_segment_size)
              for x in backup_args.storages])

freezer/storage/swift.py

@@ -20,13 +20,13 @@ import time
 
 from oslo_log import log
 import requests
-from requests.packages.urllib3.exceptions import InsecureRequestWarning
+from requests.packages import urllib3
 
 from freezer.storage import physical
 
 LOG = log.getLogger(__name__)
 
-requests.packages.urllib3.disable_warnings(InsecureRequestWarning)
+urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
 
 
 class SwiftStorage(physical.PhysicalStorage):

freezer/tests/commons.py

@@ -21,7 +21,6 @@ from glanceclient.common import utils as glance_utils
 import mock
 from oslo_config import cfg
 from oslo_config import fixture as cfg_fixture
-import six
 import testtools
 
 from freezer.common import config
@@ -346,10 +345,7 @@ class BackupOpt1(object):
         self.storage = mock.MagicMock()
         self.engine = mock.MagicMock()
         opts = osclients.OpenstackOpts.create_from_env().get_opts_dicts()
-        self.client_manager = osclients.OSClientManager(opts.pop('auth_url'),
-                                                        opts.pop(
-                                                            'auth_method'),
-                                                        **opts)
+        self.client_manager = osclients.OSClientManager(**opts)
         self.client_manager.get_swift = mock.Mock(
             return_value=FakeSwiftClient().client.Connection())
         self.client_manager.create_swift = self.client_manager.get_swift
@@ -484,17 +480,11 @@ class FakeDisableFileSystemRedirection(object):
 
 class FreezerBaseTestCase(testtools.TestCase):
     def setUp(self):
-        if six.PY34:
-            super().setUp()
-        else:
-            super(FreezerBaseTestCase, self).setUp()
+        super(FreezerBaseTestCase, self).setUp()
 
         self._config_fixture = self.useFixture(cfg_fixture.Config())
         config.config(args=[])
         self.addCleanup(CONF.reset)
 
     def tearDown(self):
-        if six.PY34:
-            super().tearDown()
-        else:
-            super(FreezerBaseTestCase, self).tearDown()
+        super(FreezerBaseTestCase, self).tearDown()

freezer/tests/unit/openstack/test_osclients.py

@@ -27,10 +27,7 @@ class TestOsClients(unittest.TestCase):
             auth_url="url/v3", password="password", identity_api_version="3",
             insecure=False, cacert='cert', user_domain_name='Default',
             project_domain_name='Default').get_opts_dicts()
-        self.client_manager = osclients.OSClientManager(
-            auth_method=self.opts.pop('auth_method'),
-            auth_url=self.opts.pop('auth_url'),
-            **self.opts)
+        self.client_manager = osclients.OSClientManager(**self.opts)
 
     def test_init(self):
         self.client_manager.get_cinder()

test-requirements.txt

@@ -6,7 +6,7 @@ hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
 coverage!=4.4,>=4.0 # Apache-2.0
 ddt>=1.0.1 # MIT
 mock>=2.0 # BSD
-pylint==1.4.5 # GPLv2
+pylint==1.7.1 # GPLv2
 python-subunit>=0.0.18 # Apache-2.0/BSD
 sphinx!=1.6.1,>=1.5.1 # BSD
 oslosphinx>=4.7.0 # Apache-2.0