Add pep8 job and fix pep8 issues

Adding a pep8 job in check and gate pipeline. This commit also
fixes a few pep8 issues.

Change-Id: I7688ce8a216eafc4d1b1c2082a7e1aad5b1d15fa

whitebox_neutron_tempest_plugin/tests/scenario/base.py

@@ -15,8 +15,8 @@
 import re
 
 import netaddr
-from neutron_tempest_plugin.scenario import base
 from neutron_tempest_plugin.common import utils as common_utils
+from neutron_tempest_plugin.scenario import base
 from oslo_log import log
 from tempest import config
 

whitebox_neutron_tempest_plugin/tests/scenario/test_vlan_transparency.py

@@ -20,7 +20,6 @@ from neutron_tempest_plugin.common import ssh
 from neutron_tempest_plugin import config
 from neutron_tempest_plugin.scenario import base
 from oslo_log import log as logging
-from tempest.lib.common import fixed_network
 from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions
@@ -326,8 +325,8 @@ class VlanTransparencyDowntreamBaseTest(base.BaseTempestTestCase):
             sg_rule = self.create_pingable_secgroup_rule(
                 self.security_group['id'], client=self.client)
             self.addCleanup(
-                    self.client.delete_security_group_rule,
-                    sg_rule['id'])
+                self.client.delete_security_group_rule,
+                sg_rule['id'])
 
 
 class MultiVlanTransparencyTest(VlanTransparencyDowntreamBaseTest):
@@ -441,8 +440,8 @@ class MultiPortVlanTransparencyTest(VlanTransparencyDowntreamBaseTest):
             sg_rule = self.create_pingable_secgroup_rule(
                 self.security_group['id'], client=self.client)
             self.addCleanup(
-                    self.client.delete_security_group_rule,
-                    sg_rule['id'])
+                self.client.delete_security_group_rule,
+                sg_rule['id'])
 
         self._check_remote_connectivity_vlan_second_port()
 

zuul.d/project.yaml

@@ -14,9 +14,11 @@
       - whitebox-neutron-tempest-plugin-jobs
     check:
       jobs:
+        - openstack-tox-pep8
         - whitebox-neutron-tempest-plugin-openvswitch
         - whitebox-neutron-tempest-plugin-ovn
     gate:
       jobs:
+        - openstack-tox-pep8
         - whitebox-neutron-tempest-plugin-openvswitch
         - whitebox-neutron-tempest-plugin-ovn