diff --git a/starlingx-dashboard/centos/build_srpm.data b/starlingx-dashboard/centos/build_srpm.data
index e077606c..546a7e79 100644
--- a/starlingx-dashboard/centos/build_srpm.data
+++ b/starlingx-dashboard/centos/build_srpm.data
@@ -1,2 +1,2 @@
 SRC_DIR="starlingx-dashboard"
-TIS_PATCH_VER=26
+TIS_PATCH_VER=27
diff --git a/starlingx-dashboard/starlingx-dashboard/starlingx_dashboard/api/nova.py b/starlingx-dashboard/starlingx-dashboard/starlingx_dashboard/api/nova.py
index 91d8ac62..6df15c65 100644
--- a/starlingx-dashboard/starlingx-dashboard/starlingx_dashboard/api/nova.py
+++ b/starlingx-dashboard/starlingx-dashboard/starlingx_dashboard/api/nova.py
@@ -4,11 +4,6 @@
 # SPDX-License-Identifier: Apache-2.0
 #
 
-from novaclient.v2 import wrs_pci
-from novaclient.v2 import wrs_providernets
-
-from openstack_dashboard.api import base
-from openstack_dashboard.api.nova import nova_exceptions
 from openstack_dashboard.api.nova import novaclient
 
 
@@ -27,42 +22,3 @@ def server_group_create(request, name, project_id, metadata, policies):
 
 def server_group_delete(request, server_group_id):
     return novaclient(request).server_groups.delete(server_group_id)
-
-
-def provider_network_get(request, providernet_id):
-    return wrs_providernets.ProviderNetsManager(novaclient(request)).get(
-        providernet_id)
-
-
-class DeviceUsage(base.APIResourceWrapper):
-    """Wrapper for Inventory Device Usage"""
-    _attrs = ['device_id', 'device_name', 'vendor_id', 'class_id',
-              'pci_vfs_configured', 'pci_vfs_used',
-              'pci_pfs_configured', 'pci_pfs_used']
-
-
-def get_device_usage_list(request):
-    usages = wrs_pci.PciDevicesManager(novaclient(request)).list()
-    return [DeviceUsage(n) for n in usages]
-
-
-def get_device_usage(request, device_id):
-    if device_id is None:
-        raise nova_exceptions.ResourceNotFound
-
-    usage = wrs_pci.PciDevicesManager(novaclient(request)).list(
-        device=device_id)
-    return DeviceUsage(usage[0])
-
-
-class DetailUsage(base.APIResourceWrapper):
-    """Wrapper for Inventory Device Usage"""
-    _attrs = ['host',
-              'pci_vfs_configured', 'pci_vfs_used',
-              'pci_pfs_configured', 'pci_pfs_used']
-
-
-def get_detail_usage(request, device_id):
-    usages = wrs_pci.PciDevicesManager(novaclient(request)).get(
-        device_id)
-    return [DetailUsage(n) for n in usages]
diff --git a/starlingx-dashboard/starlingx-dashboard/starlingx_dashboard/horizon/tables/__init__.py b/starlingx-dashboard/starlingx-dashboard/starlingx_dashboard/horizon/tables/__init__.py
index aa24c89a..69dbb7cc 100644
--- a/starlingx-dashboard/starlingx-dashboard/starlingx_dashboard/horizon/tables/__init__.py
+++ b/starlingx-dashboard/starlingx-dashboard/starlingx_dashboard/horizon/tables/__init__.py
@@ -1,2 +1,2 @@
-from starlingx_dashboard.horizon.tables.actions import FixedWithQueryFilter # noqa
-from starlingx_dashboard.horizon.tables.actions import LimitAction # noqa
+from starlingx_dashboard.horizon.tables.actions import FixedWithQueryFilter  # noqa
+from starlingx_dashboard.horizon.tables.actions import LimitAction  # noqa
diff --git a/test-requirements.txt b/test-requirements.txt
index 16ce5b18..1f4d9005 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -7,8 +7,7 @@
 # be installed in a specific order.
 #
 # Hacking should appear first in case something else depends on pep8
-hacking<0.11,>=0.10.0
-#
+hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
 coverage>=3.6 # Apache-2.0
 django-nose>=1.4.4 # BSD
 mock>=2.0 # BSD
diff --git a/tox.ini b/tox.ini
index 0e008536..13781d7a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = pep8
+envlist = pep8,pylint
 minversion = 2.3
 skipsdist = True
 stxdir = {toxinidir}/..
@@ -28,12 +28,6 @@ commands =
             -o -type f -name '*.yaml'       \
             -print0 | xargs --no-run-if-empty -0 yamllint"
 
-[pep8]
-# Ignoring these warnings
-# E501 line too long
-
-ignore = E501,E129
-
 [flake8]
 # H102 Apache 2.0 license header not found
 # B301 Python 3 does not include `.iter*` methods on dictionaries.
@@ -48,10 +42,6 @@ enable-extensions = H106,H203,H904
 basepython = python3
 usedevelop = False
 skip_install = True
-deps =
-    hacking
-    flake8-bugbear
-    flake8<3.6.0
 commands =
     flake8
 
@@ -60,8 +50,6 @@ basepython = python2.7
 usedevelop = False
 skip_install = True
 deps = {[testenv]deps}
-    git+git://github.com/starlingx-staging/stx-python-novaclient.git
-    git+git://github.com/starlingx-staging/stx-python-neutronclient.git
     git+git://github.com/starlingx-staging/stx-horizon.git
     git+git://github.com/starlingx-staging/stx-distcloud-client.git
     -e{[tox]stxdir}/stx-config/sysinv/cgts-client/cgts-client
@@ -72,9 +60,7 @@ deps = {[testenv]deps}
     requests-toolbelt
     pylint
 commands =
-    pylint  --rcfile=./pylint.rc --version
-    pylint  starlingx-dashboard/starlingx-dashboard/starlingx_dashboard \
-            --rcfile=./pylint.rc
+    pylint   starlingx-dashboard/starlingx-dashboard/starlingx_dashboard --rcfile=./pylint.rc
 
 [testenv:venv]
 basepython = python3