Merge "Removing unnecessary pass instructions"
diff --git a/tempest/api/compute/base.py b/tempest/api/compute/base.py
index 8734624..f0e70bd 100644
--- a/tempest/api/compute/base.py
+++ b/tempest/api/compute/base.py
@@ -175,7 +175,6 @@
                 pass
             except Exception:
                 LOG.exception('Exception raised deleting image %s' % image_id)
-                pass
 
     @classmethod
     def clear_security_groups(cls):
@@ -190,7 +189,6 @@
                 LOG.info('Exception raised deleting security group %s',
                          sg['id'])
                 LOG.exception(exc)
-                pass
 
     @classmethod
     def tearDownClass(cls):
@@ -322,7 +320,6 @@
                 cls.servers_client.wait_for_server_termination(server_id)
             except Exception:
                 LOG.exception('Failed to delete server %s' % server_id)
-                pass
         resp, server = cls.create_test_server(wait_until='ACTIVE', **kwargs)
         if cls._api_version == 2:
             cls.password = server['adminPass']
diff --git a/tempest/common/isolated_creds.py b/tempest/common/isolated_creds.py
index 8fe3a17..5059a5b 100644
--- a/tempest/common/isolated_creds.py
+++ b/tempest/common/isolated_creds.py
@@ -383,7 +383,6 @@
         except exceptions.NotFound:
             LOG.warn('router with name: %s not found for delete' %
                      router_name)
-            pass
 
     def _clear_isolated_subnet(self, subnet_id, subnet_name):
         net_client = self.network_admin_client
@@ -392,7 +391,6 @@
         except exceptions.NotFound:
             LOG.warn('subnet with name: %s not found for delete' %
                      subnet_name)
-            pass
 
     def _clear_isolated_network(self, network_id, network_name):
         net_client = self.network_admin_client
@@ -401,7 +399,6 @@
         except exceptions.NotFound:
             LOG.warn('network with name: %s not found for delete' %
                      network_name)
-            pass
 
     def _cleanup_ports(self, network_id):
         # TODO(mlavalle) This method will be removed once patch
@@ -447,7 +444,6 @@
                 except exceptions.NotFound:
                     LOG.warn('router with name: %s not found for delete' %
                              router['name'])
-                    pass
                 self._clear_isolated_router(router['id'], router['name'])
             if (not self.network_resources or
                 self.network_resources.get('network')):
@@ -471,10 +467,8 @@
             except exceptions.NotFound:
                 LOG.warn("user with name: %s not found for delete" %
                          creds.username)
-                pass
             try:
                 self._delete_tenant(creds.tenant_id)
             except exceptions.NotFound:
                 LOG.warn("tenant with name: %s not found for delete" %
                          creds.tenant_name)
-                pass
diff --git a/tools/install_venv_common.py b/tools/install_venv_common.py
index 46822e3..743b59d 100644
--- a/tools/install_venv_common.py
+++ b/tools/install_venv_common.py
@@ -101,7 +101,6 @@
             print('done.')
         else:
             print("venv already exists...")
-            pass
 
     def pip_install(self, *args):
         self.run_command(['tools/with_venv.sh',