diff --git a/.zuul.yaml b/.zuul.yaml
index ef9b0eb..462841c 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -272,6 +272,20 @@
       tempest_concurrency: 2
 
 - job:
+    name: tempest-slow-py3
+    parent: tempest-slow
+    vars:
+      devstack_localrc:
+        USE_PYTHON3: true
+      devstack_services:
+        s-account: false
+        s-container: false
+        s-object: false
+        s-proxy: false
+        # without Swift, c-bak cannot run (in the Gate at least)
+        c-bak: false
+
+- job:
     name: tempest-full-rocky
     parent: tempest-full
     nodeset: openstack-single-node-xenial
@@ -513,6 +527,8 @@
               # tools/ is not here since this relies on a script in tools/.
         - tempest-slow:
             irrelevant-files: *tempest-irrelevant-files
+        - tempest-slow-py3:
+            irrelevant-files: *tempest-irrelevant-files
         - nova-live-migration:
             voting: false
             irrelevant-files: *tempest-irrelevant-files
@@ -556,7 +572,7 @@
       jobs:
         - nova-multiattach:
             irrelevant-files: *tempest-irrelevant-files
-        - tempest-slow:
+        - tempest-slow-py3:
             irrelevant-files: *tempest-irrelevant-files
         - neutron-grenade-multinode:
             irrelevant-files: *tempest-irrelevant-files
diff --git a/tempest/api/compute/admin/test_servers_on_multinodes.py b/tempest/api/compute/admin/test_servers_on_multinodes.py
index 5cd98f4..bebc8c5 100644
--- a/tempest/api/compute/admin/test_servers_on_multinodes.py
+++ b/tempest/api/compute/admin/test_servers_on_multinodes.py
@@ -105,7 +105,7 @@
         asserts the servers are in the group and on different hosts.
         """
         hosts = self._create_servers_with_group('anti-affinity')
-        hostnames = hosts.values()
+        hostnames = list(hosts.values())
         self.assertNotEqual(hostnames[0], hostnames[1],
                             'Servers are on the same host: %s' % hosts)
 
@@ -120,6 +120,6 @@
         asserts the servers are in the group and on same host.
         """
         hosts = self._create_servers_with_group('affinity')
-        hostnames = hosts.values()
+        hostnames = list(hosts.values())
         self.assertEqual(hostnames[0], hostnames[1],
                          'Servers are on the different hosts: %s' % hosts)
diff --git a/tempest/api/compute/base.py b/tempest/api/compute/base.py
index 09dd409..624a99e 100644
--- a/tempest/api/compute/base.py
+++ b/tempest/api/compute/base.py
@@ -457,7 +457,7 @@
             else:
                 msg = ('When validation.connect_method equals floating, '
                        'validation_resources cannot be None')
-                raise exceptions.InvalidParam(invalid_param=msg)
+                raise lib_exc.InvalidParam(invalid_param=msg)
         elif CONF.validation.connect_method == 'fixed':
             addresses = server['addresses'][CONF.validation.network_for_ssh]
             for address in addresses:
diff --git a/tempest/api/compute/servers/test_attach_interfaces.py b/tempest/api/compute/servers/test_attach_interfaces.py
index 05c2a28..bea23d9 100644
--- a/tempest/api/compute/servers/test_attach_interfaces.py
+++ b/tempest/api/compute/servers/test_attach_interfaces.py
@@ -256,8 +256,8 @@
         if not (CONF.auth.use_dynamic_credentials and
                 CONF.auth.create_isolated_networks and
                 not CONF.network.shared_physical_network):
-                raise self.skipException("Only owner network supports "
-                                         "creating interface by fixed ip.")
+            raise self.skipException("Only owner network supports "
+                                     "creating interface by fixed ip.")
 
         server, ifs = self._create_server_get_interfaces()
         interface_count = len(ifs)
diff --git a/tempest/api/identity/admin/v3/test_project_tags.py b/tempest/api/identity/admin/v3/test_project_tags.py
index d05173b..b7878a8 100644
--- a/tempest/api/identity/admin/v3/test_project_tags.py
+++ b/tempest/api/identity/admin/v3/test_project_tags.py
@@ -25,6 +25,10 @@
 
 
 class IdentityV3ProjectTagsTest(base.BaseIdentityV3AdminTest):
+    # NOTE: force_tenant_isolation is true in the base class by default but
+    # overridden to false here to allow test execution for clouds using the
+    # pre-provisioned credentials provider.
+    force_tenant_isolation = False
 
     @decorators.idempotent_id('7c123aac-999d-416a-a0fb-84b915ab10de')
     @testtools.skipUnless(CONF.identity_feature_enabled.project_tags,
diff --git a/tempest/api/identity/admin/v3/test_tokens.py b/tempest/api/identity/admin/v3/test_tokens.py
index 8ae43d6..5f1b58d 100644
--- a/tempest/api/identity/admin/v3/test_tokens.py
+++ b/tempest/api/identity/admin/v3/test_tokens.py
@@ -42,10 +42,10 @@
         user = self.create_test_user(password=user_password)
 
         # Create a couple projects
-        project1_name = data_utils.rand_name(name='project')
+        project1_name = data_utils.rand_name(name=self.__class__.__name__)
         project1 = self.setup_test_project(name=project1_name)
 
-        project2_name = data_utils.rand_name(name='project')
+        project2_name = data_utils.rand_name(name=self.__class__.__name__)
         project2 = self.setup_test_project(name=project2_name)
         self.addCleanup(self.projects_client.delete_project, project2['id'])
 
diff --git a/tempest/api/identity/admin/v3/test_trusts.py b/tempest/api/identity/admin/v3/test_trusts.py
index 83b3c30..54a5ab7 100644
--- a/tempest/api/identity/admin/v3/test_trusts.py
+++ b/tempest/api/identity/admin/v3/test_trusts.py
@@ -49,7 +49,8 @@
 
     def create_trustor_and_roles(self):
         # create a project that trusts will be granted on
-        trustor_project_name = data_utils.rand_name(name='project')
+        trustor_project_name = data_utils.rand_name(
+            name=self.__class__.__name__)
         project = self.projects_client.create_project(
             trustor_project_name,
             domain_id=CONF.identity.default_domain_id)['project']
diff --git a/tempest/common/utils/linux/remote_client.py b/tempest/common/utils/linux/remote_client.py
index 52ccfa9..49d9742 100644
--- a/tempest/common/utils/linux/remote_client.py
+++ b/tempest/common/utils/linux/remote_client.py
@@ -98,6 +98,7 @@
     def get_nic_name_by_ip(self, address):
         cmd = "ip -o addr | awk '/%s/ {print $2}'" % address
         nic = self.exec_command(cmd)
+        LOG.debug('(get_nic_name_by_ip) Command result: %s', nic)
         return nic.strip().strip(":").split('@')[0].lower()
 
     def get_dns_servers(self):
diff --git a/tempest/lib/cmd/check_uuid.py b/tempest/lib/cmd/check_uuid.py
index 82fcd0b..ac40eef 100755
--- a/tempest/lib/cmd/check_uuid.py
+++ b/tempest/lib/cmd/check_uuid.py
@@ -233,8 +233,8 @@
                           if self._is_test_case(module, node))
             for node in test_cases:
                 for subnode in filter(self._is_test_method, node.body):
-                        test_name = '%s.%s' % (node.name, subnode.name)
-                        tests[module_name]['tests'][test_name] = subnode
+                    test_name = '%s.%s' % (node.name, subnode.name)
+                    tests[module_name]['tests'][test_name] = subnode
         return tests
 
     @staticmethod
diff --git a/tempest/lib/common/rest_client.py b/tempest/lib/common/rest_client.py
index ec46caf..a6f5570 100644
--- a/tempest/lib/common/rest_client.py
+++ b/tempest/lib/common/rest_client.py
@@ -526,7 +526,7 @@
         if (resp.status == 205 and
             0 != len(set(resp.keys()) - set(('status',)) -
                      self.response_header_lc - self.general_header_lc)):
-                        raise exceptions.ResponseWithEntity()
+            raise exceptions.ResponseWithEntity()
         # NOTE(afazekas)
         # Now the swift sometimes (delete not empty container)
         # returns with non json error response, we can create new rest class
diff --git a/tempest/scenario/test_network_basic_ops.py b/tempest/scenario/test_network_basic_ops.py
index c11070c..a473cc9 100644
--- a/tempest/scenario/test_network_basic_ops.py
+++ b/tempest/scenario/test_network_basic_ops.py
@@ -544,6 +544,7 @@
             should_connect=True, msg="after updating "
             "admin_state_up of router to True")
 
+    @decorators.skip_because(bug='1813198')
     @decorators.idempotent_id('d8bb918e-e2df-48b2-97cd-b73c95450980')
     @testtools.skipIf(CONF.network.shared_physical_network,
                       'network isolation not available')
diff --git a/tempest/tests/cmd/test_run.py b/tempest/tests/cmd/test_run.py
index e159cdc..5091841 100644
--- a/tempest/tests/cmd/test_run.py
+++ b/tempest/tests/cmd/test_run.py
@@ -108,6 +108,27 @@
         subprocess.call(['stestr', 'init'])
         self.assertRunExit(['tempest', 'run', '--regex', 'passing'], 0)
 
+    def test_tempest_run_failing(self):
+        self.assertRunExit(['tempest', 'run', '--regex', 'failing'], 1)
+
+    def test_tempest_run_failing_with_stestr_repository(self):
+        subprocess.call(['stestr', 'init'])
+        self.assertRunExit(['tempest', 'run', '--regex', 'failing'], 1)
+
+    def test_tempest_run_blackregex_failing(self):
+        self.assertRunExit(['tempest', 'run', '--black-regex', 'failing'], 0)
+
+    def test_tempest_run_blackregex_failing_with_stestr_repository(self):
+        subprocess.call(['stestr', 'init'])
+        self.assertRunExit(['tempest', 'run', '--black-regex', 'failing'], 0)
+
+    def test_tempest_run_blackregex_passing(self):
+        self.assertRunExit(['tempest', 'run', '--black-regex', 'passing'], 1)
+
+    def test_tempest_run_blackregex_passing_with_stestr_repository(self):
+        subprocess.call(['stestr', 'init'])
+        self.assertRunExit(['tempest', 'run', '--black-regex', 'passing'], 1)
+
     def test_tempest_run_fails(self):
         self.assertRunExit(['tempest', 'run'], 1)