diff --git a/tcp_tests/helpers/containers.py b/tcp_tests/helpers/containers.py
index 7d1306a..f7f78af 100644
--- a/tcp_tests/helpers/containers.py
+++ b/tcp_tests/helpers/containers.py
@@ -148,7 +148,7 @@
              "failed: {1}.").format(self.image_name, result)
         result = self.remote.execute(check_alias_cmd)
         assert result['exit_code'] == 0, \
-            ("Alias creation for running {} from container "
+            ("Alias creation for running {0} from container "
              "failed: {1}.").format(self.image_name, result)
 
     def setup(self):
diff --git a/tcp_tests/helpers/env_config.py b/tcp_tests/helpers/env_config.py
index b811030..ef07866 100644
--- a/tcp_tests/helpers/env_config.py
+++ b/tcp_tests/helpers/env_config.py
@@ -223,7 +223,7 @@
     elif i_count > 0 and not isinstance(data[key], list):
         raise TypeError(
             ("Key '{0}' by '{1}' keypath expected as list "
-             "but '{3}' obj found").format(
+             "but '{2}' obj found").format(
                  key, keypath(walked_paths), type(data[key]).__name__
             )
         )
diff --git a/tcp_tests/managers/jenkins/client.py b/tcp_tests/managers/jenkins/client.py
index eb67074..20b070e 100644
--- a/tcp_tests/managers/jenkins/client.py
+++ b/tcp_tests/managers/jenkins/client.py
@@ -278,7 +278,7 @@
         req = send_request(
                 'GET',
                 self.__client._build_url(PROGRESSIVE_CONSOLE_OUTPUT, locals()))
-        return(self.__client.jenkins_request(req))
+        return (self.__client.jenkins_request(req))
 
     @retry(max_count=12)
     def get_workflow(self, name, build_id, enode=None, mode='describe'):
diff --git a/tcp_tests/managers/k8smanager.py b/tcp_tests/managers/k8smanager.py
index 5f5f4e8..c3922db 100644
--- a/tcp_tests/managers/k8smanager.py
+++ b/tcp_tests/managers/k8smanager.py
@@ -69,7 +69,7 @@
             "expected one!").format(k8s_hosts)
         k8s_host = k8s_hosts.pop()
         assert k8s_host in k8s_proxy_ip, (
-            "Kubernetes API host:{0} not found in proxies:{} "
+            "Kubernetes API host:{0} not found in proxies:{1} "
             "on k8s master nodes. K8s proxies are expected on "
             "nodes with K8s master").format(k8s_host, k8s_proxy_ip)
         return k8s_host
diff --git a/tcp_tests/managers/openstack_manager.py b/tcp_tests/managers/openstack_manager.py
index b0232ca..07810ba 100644
--- a/tcp_tests/managers/openstack_manager.py
+++ b/tcp_tests/managers/openstack_manager.py
@@ -138,8 +138,8 @@
                    "-e SOURCE_FILE=keystonercv3  "
                    "-v /root/:/home/rally "
                    "-v /var/log/:/home/rally/rally_reports/ "
-                   "-v /etc/ssl/certs/:/etc/ssl/certs/ {2} >> image.output"
-                   .format(conf_name, pattern, registry))
+                   "-v /etc/ssl/certs/:/etc/ssl/certs/ {1} >> image.output"
+                   .format(conf_name, registry))
         LOG.info("Running tempest testing on node {0} using the following "
                  "command:\n{1}".format(target_name, cmd))
 
diff --git a/tcp_tests/managers/rallymanager.py b/tcp_tests/managers/rallymanager.py
index 589e1ee..959ade0 100644
--- a/tcp_tests/managers/rallymanager.py
+++ b/tcp_tests/managers/rallymanager.py
@@ -255,7 +255,7 @@
                 report_prefix,
                 datetime.datetime.now().strftime('%Y%m%d_%H%M%S'))
         else:
-            report_filename = 'report_{1}'.format(
+            report_filename = 'report_{}'.format(
                 datetime.datetime.now().strftime('%Y%m%d_%H%M%S'))
         docker_file_prefix = '/home/rally/.rally/' + report_filename
 
diff --git a/tcp_tests/managers/reclass_manager.py b/tcp_tests/managers/reclass_manager.py
index c7ec298..9b8a824 100644
--- a/tcp_tests/managers/reclass_manager.py
+++ b/tcp_tests/managers/reclass_manager.py
@@ -135,7 +135,6 @@
                 "{reclass_tools} get-key classes \
                 /srv/salt/reclass/classes/{path}".format(
                     reclass_tools=self.reclass_tools_cmd,
-                    value=value,
                     path=short_path
                 )):
             LOG.warning("Class {} already exists in {}".format(
@@ -230,7 +229,6 @@
         self.ssh.check_call(
             "cat {yaml} > \
             /srv/salt/reclass/classes/{path}".format(
-                reclass_tools=self.reclass_tools_cmd,
                 yaml=tmp_file,
                 path=short_path
             ))
diff --git a/tcp_tests/tests/system/test_backup_restore.py b/tcp_tests/tests/system/test_backup_restore.py
index 47aff19..8608cfd 100644
--- a/tcp_tests/tests/system/test_backup_restore.py
+++ b/tcp_tests/tests/system/test_backup_restore.py
@@ -212,7 +212,7 @@
         result = salt_actions.local(
             sm, "pkg.info_installed", postgresql_pkg)['return'][0]
         installed_ver = result[sm][postgresql_pkg].get('version')
-        if not(installed_ver and postgresql_pkg_ver in installed_ver):
+        if not (installed_ver and postgresql_pkg_ver in installed_ver):
             pkg = "{pkg},{pkg}-{ver}".format(
                 pkg=postgresql_pkg, ver=postgresql_pkg_ver)
             salt_actions.local(sm, "pkg.install", pkg)
diff --git a/tcp_tests/tests/system/test_mcp_update.py b/tcp_tests/tests/system/test_mcp_update.py
index fba6cb6..c01c80f 100644
--- a/tcp_tests/tests/system/test_mcp_update.py
+++ b/tcp_tests/tests/system/test_mcp_update.py
@@ -297,7 +297,7 @@
         job_name = 'pre-upgrade-verify'
         job_parameters = {}
 
-        if(dt.check_job_exists_on_jenkins(job_name)):
+        if (dt.check_job_exists_on_jenkins(job_name)):
             LOG.info("Pre-upgrade verify job exists on Jenkins!")
             job_result, job_description = dt.start_job_on_jenkins(
                 job_name=job_name,
diff --git a/tcp_tests/tests/system/test_offline.py b/tcp_tests/tests/system/test_offline.py
index 34c729a..0b0d6a5 100644
--- a/tcp_tests/tests/system/test_offline.py
+++ b/tcp_tests/tests/system/test_offline.py
@@ -73,9 +73,12 @@
                 end=admin_net[253],
                 net=admin_net))
         underlay.check_call(node_name=cfg_node, verbose=verbose,
-            cmd="maas mirantis vlan update "
-            "$(maas mirantis subnets read | jq '.[] | select(.name==\"{net}\") | .vlan.fabric_id') "  # noqa
-            "0 dhcp_on=True primary_rack='cfg01'".format(net=admin_net))
+                            cmd="maas mirantis vlan update "
+                                "$(maas mirantis subnets read | jq '.[] | "
+                                "select(.name==\"{net}\") | .vlan.fabric_id') "  # noqa
+                                "0 dhcp_on=True "
+                                "primary_rack='cfg01'".format(
+                                    net=admin_net))
 
         underlay.check_call(
             node_name=cfg_node, verbose=verbose,