Fixing open stack compile time errors irt exception handling for Python 3 (#3848)

lib/ansible/modules/cloud/openstack/_glance_image.py

@@ -142,7 +142,7 @@ def _get_ksclient(module, kwargs):
                                  password=kwargs.get('login_password'),
                                  tenant_name=kwargs.get('login_tenant_name'),
                                  auth_url=kwargs.get('auth_url'))
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg="Error authenticating to the keystone: %s " % e.message)
     return client 
 
@@ -150,7 +150,7 @@ def _get_ksclient(module, kwargs):
 def _get_endpoint(module, client, endpoint_type):
     try:
         endpoint = client.service_catalog.url_for(service_type='image', endpoint_type=endpoint_type)
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg="Error getting endpoint for glance: %s" % e.message)
     return endpoint
 
@@ -164,7 +164,7 @@ def _get_glance_client(module, kwargs):
     }
     try:
         client = glanceclient.Client('1', endpoint, **kwargs)
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg="Error in connecting to glance: %s" % e.message)
     return client
 
@@ -175,7 +175,7 @@ def _glance_image_present(module, params, client):
             if image.name == params['name']:
                 return image.id 
         return None
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg="Error in fetching image list: %s" % e.message)
 
 
@@ -199,7 +199,7 @@ def _glance_image_create(module, params, client):
             if image.status == 'active':
                 break
             time.sleep(5)
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg="Error in creating image: %s" % e.message)
     if image.status == 'active':
         module.exit_json(changed=True, result=image.status, id=image.id)
@@ -212,7 +212,7 @@ def _glance_delete_image(module, params, client):
         for image in client.images.list():
             if image.name == params['name']:
                 client.images.delete(image)
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg="Error in deleting image: %s" % e.message)
     module.exit_json(changed=True, result="Deleted")
 

lib/ansible/modules/cloud/openstack/_keystone_user.py

@@ -368,7 +368,7 @@ def main():
         d = dispatch(keystone, user, password, tenant, tenant_description,
                      email, role, state, endpoint, token, login_user,
                      login_password, check_mode)
-    except Exception, e:
+    except Exception as e:
         if check_mode:
             # If we have a failure in check mode
             module.exit_json(changed=True,

lib/ansible/modules/cloud/openstack/_nova_compute.py

@@ -283,7 +283,7 @@ def _delete_server(module, nova):
         if server_list:
             server = [x for x in server_list if x.name == module.params['name']]
             nova.servers.delete(server.pop())
-    except Exception, e:
+    except Exception as e:
         module.fail_json( msg = "Error in deleting vm: %s" % e.message)
     if module.params['wait'] == 'no':
         module.exit_json(changed = True, result = "deleted")
@@ -330,7 +330,7 @@ def _add_floating_ip_from_pool(module, nova, server):
         if not pool_ips:
             try:
                 new_ip = nova.floating_ips.create(pool)
-            except Exception, e: 
+            except Exception as e: 
                 module.fail_json(msg = "Unable to create floating ip: %s" % (e.message))
             pool_ips.append(new_ip.ip)
         # Add to the main list
@@ -345,7 +345,7 @@ def _add_floating_ip_from_pool(module, nova, server):
                 # race condition and some other cloud operation may have
                 # stolen an available floating ip
                 break
-            except Exception, e:
+            except Exception as e:
                 module.fail_json(msg = "Error attaching IP %s to instance %s: %s " % (ip, server.id, e.message))
 
 
@@ -354,7 +354,7 @@ def _add_floating_ip_list(module, server, ips):
     for ip in ips:
         try:
             server.add_floating_ip(ip)
-        except Exception, e:
+        except Exception as e:
             module.fail_json(msg = "Error attaching IP %s to instance %s: %s " % (ip, server.id, e.message))
 
 
@@ -390,7 +390,7 @@ def _add_floating_ip(module, nova, server):
     # a recent server object if the above code path exec'd
     try:
         server = nova.servers.get(server.id)
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error in getting info from instance: %s " % e.message)
     return server
 
@@ -435,14 +435,14 @@ def _create_server(module, nova):
     try:
         server = nova.servers.create(*bootargs, **bootkwargs)
         server = nova.servers.get(server.id)
-    except Exception, e:
+    except Exception as e:
             module.fail_json( msg = "Error in creating instance: %s " % e.message)
     if module.params['wait'] == 'yes':
         expire = time.time() + int(module.params['wait_for'])
         while time.time() < expire:
             try:
                 server = nova.servers.get(server.id)
-            except Exception, e:
+            except Exception as e:
                     module.fail_json( msg = "Error in getting info from instance: %s" % e.message)
             if server.status == 'ACTIVE':
                 server = _add_floating_ip(module, nova, server)
@@ -511,7 +511,7 @@ def _get_server_state(module, nova):
             servers = [x for x in servers if x.name == module.params['name']]
             if servers:
                 server = servers[0]
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error in getting the server list: %s" % e.message)
     if server and module.params['state'] == 'present':
         if server.status != 'ACTIVE':
@@ -571,9 +571,9 @@ def main():
                               service_type='compute')
     try:
         nova.authenticate()
-    except exceptions.Unauthorized, e:
+    except exceptions.Unauthorized as e:
         module.fail_json(msg = "Invalid OpenStack Nova credentials.: %s" % e.message)
-    except exceptions.AuthorizationFailure, e:
+    except exceptions.AuthorizationFailure as e:
         module.fail_json(msg = "Unable to authorize user: %s" % e.message)
 
     if module.params['state'] == 'present':

lib/ansible/modules/cloud/openstack/_nova_keypair.py

@@ -107,9 +107,9 @@ def main():
                               service_type='compute')
     try:
         nova.authenticate()
-    except exc.Unauthorized, e:
+    except exc.Unauthorized as e:
         module.fail_json(msg = "Invalid OpenStack Nova credentials.: %s" % e.message)
-    except exc.AuthorizationFailure, e:
+    except exc.AuthorizationFailure as e:
         module.fail_json(msg = "Unable to authorize user: %s" % e.message)
 
     if module.params['state'] == 'present':
@@ -121,7 +121,7 @@ def main():
                     module.exit_json(changed = False, result = "Key present")            
         try:
             key = nova.keypairs.create(module.params['name'], module.params['public_key'])
-        except Exception, e:
+        except Exception as e:
             module.exit_json(msg = "Error in creating the keypair: %s" % e.message)
         if not module.params['public_key']:
             module.exit_json(changed = True, key = key.private_key)
@@ -131,7 +131,7 @@ def main():
             if key.name == module.params['name']:
                 try:
                     nova.keypairs.delete(module.params['name'])
-                except Exception, e:
+                except Exception as e:
                     module.fail_json(msg = "The keypair deletion has failed: %s" % e.message)
                 module.exit_json( changed = True, result = "deleted")
         module.exit_json(changed = False, result = "not present")

lib/ansible/modules/cloud/openstack/_quantum_floating_ip.py

@@ -102,7 +102,7 @@ def _get_ksclient(module, kwargs):
                                  tenant_name=kwargs.get('login_tenant_name'),
                                  auth_url=kwargs.get('auth_url'),
                                  region_name=kwargs.get('region_name'))
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error authenticating to the keystone: %s " % e.message)
     global _os_keystone
     _os_keystone = kclient
@@ -112,7 +112,7 @@ def _get_ksclient(module, kwargs):
 def _get_endpoint(module, ksclient):
     try:
         endpoint = ksclient.service_catalog.url_for(service_type='network', endpoint_type='publicURL')
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error getting network endpoint: %s" % e.message)
     return endpoint
 
@@ -126,7 +126,7 @@ def _get_neutron_client(module, kwargs):
     }
     try:
         neutron = client.Client('2.0', **kwargs)
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error in connecting to neutron: %s " % e.message)
     return neutron
 
@@ -142,7 +142,7 @@ def _get_server_state(module, nova):
                         module.fail_json( msg="The VM is available but not Active. state:" + info['status'])
                     server_info = info
                     break
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error in getting the server list: %s" % e.message)
     return server_info, server
 
@@ -163,7 +163,7 @@ def _get_port_info(neutron, module, instance_id, internal_network_name=None):
     }
     try:
         ports = neutron.list_ports(**kwargs)
-    except Exception, e:
+    except Exception as e:
         module.fail_json( msg = "Error in listing ports: %s" % e.message)
     if subnet_id:
         port = next(port for port in ports['ports'] if port['fixed_ips'][0]['subnet_id'] == subnet_id)
@@ -182,7 +182,7 @@ def _get_floating_ip(module, neutron, fixed_ip_address, network_name):
     }
     try:
         ips = neutron.list_floatingips(**kwargs)
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "error in fetching the floatingips's %s" % e.message)
     if not ips['floatingips']:
         return None, None
@@ -205,7 +205,7 @@ def _create_floating_ip(neutron, module, port_id, net_id, fixed_ip):
     }
     try:
         result = neutron.create_floatingip({'floatingip': kwargs})
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg="There was an error in updating the floating ip address: %s" % e.message)
     module.exit_json(changed=True, result=result, public_ip=result['floatingip']['floating_ip_address'])
 
@@ -215,7 +215,7 @@ def _get_net_id(neutron, module):
     }
     try:
         networks = neutron.list_networks(**kwargs)
-    except Exception, e:
+    except Exception as e:
         module.fail_json("Error in listing neutron networks: %s" % e.message)
     if not networks['networks']:
         return None
@@ -227,7 +227,7 @@ def _update_floating_ip(neutron, module, port_id, floating_ip_id):
     }
     try:
         result = neutron.update_floatingip(floating_ip_id, {'floatingip': kwargs})
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg="There was an error in updating the floating ip address: %s" % e.message)
     module.exit_json(changed=True, result=result)
 
@@ -247,7 +247,7 @@ def main():
         nova = nova_client.Client(module.params['login_username'], module.params['login_password'],
             module.params['login_tenant_name'], module.params['auth_url'], region_name=module.params['region_name'], service_type='compute')
         neutron = _get_neutron_client(module, module.params)
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg="Error in authenticating to nova: %s" % e.message)
 
     server_info, server_obj = _get_server_state(module, nova)

lib/ansible/modules/cloud/openstack/_quantum_floating_ip_associate.py

@@ -97,7 +97,7 @@ def _get_ksclient(module, kwargs):
                                  password=kwargs.get('login_password'),
                                  tenant_name=kwargs.get('login_tenant_name'),
                                  auth_url=kwargs.get('auth_url'))
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error authenticating to the keystone: %s " % e.message)
     global _os_keystone
     _os_keystone = kclient
@@ -107,7 +107,7 @@ def _get_ksclient(module, kwargs):
 def _get_endpoint(module, ksclient):
     try:
         endpoint = ksclient.service_catalog.url_for(service_type='network', endpoint_type='publicURL')
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error getting network endpoint: %s" % e.message)
     return endpoint
 
@@ -121,7 +121,7 @@ def _get_neutron_client(module, kwargs):
     }
     try:
         neutron = client.Client('2.0', **kwargs)
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error in connecting to neutron: %s " % e.message)
     return neutron
 
@@ -137,7 +137,7 @@ def _get_server_state(module, nova):
                         module.fail_json(msg="The VM is available but not Active. state:" + info['status'])
                     server_info = info
                     break
-    except Exception, e:
+    except Exception as e:
             module.fail_json(msg = "Error in getting the server list: %s" % e.message)
     return server_info, server
 
@@ -145,7 +145,7 @@ def _get_port_id(neutron, module, instance_id):
     kwargs = dict(device_id = instance_id)
     try:
         ports = neutron.list_ports(**kwargs)
-    except Exception, e:
+    except Exception as e:
         module.fail_json( msg = "Error in listing ports: %s" % e.message)
     if not ports['ports']:
         return None
@@ -157,7 +157,7 @@ def _get_floating_ip_id(module, neutron):
     }
     try:
         ips = neutron.list_floatingips(**kwargs)
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "error in fetching the floatingips's %s" % e.message)
     if not ips['floatingips']:
         module.fail_json(msg = "Could find the ip specified in parameter, Please check")
@@ -174,7 +174,7 @@ def _update_floating_ip(neutron, module, port_id, floating_ip_id):
     }
     try:
         result = neutron.update_floatingip(floating_ip_id, {'floatingip': kwargs})
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "There was an error in updating the floating ip address: %s" % e.message)
     module.exit_json(changed = True, result = result, public_ip=module.params['ip_address'])
 
@@ -191,7 +191,7 @@ def main():
     try:
         nova = nova_client.Client(module.params['login_username'], module.params['login_password'],
                                  module.params['login_tenant_name'], module.params['auth_url'], service_type='compute')
-    except Exception, e:
+    except Exception as e:
         module.fail_json( msg = " Error in authenticating to nova: %s" % e.message)
     neutron = _get_neutron_client(module, module.params)
     state, floating_ip_id = _get_floating_ip_id(module, neutron)

lib/ansible/modules/cloud/openstack/_quantum_network.py

@@ -129,7 +129,7 @@ def _get_ksclient(module, kwargs):
                                  password=kwargs.get('login_password'),
                                  tenant_name=kwargs.get('login_tenant_name'),
                                  auth_url=kwargs.get('auth_url'))
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error authenticating to the keystone: %s" %e.message)
     global _os_keystone
     _os_keystone = kclient
@@ -139,7 +139,7 @@ def _get_ksclient(module, kwargs):
 def _get_endpoint(module, ksclient):
     try:
         endpoint = ksclient.service_catalog.url_for(service_type='network', endpoint_type='publicURL')
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error getting network endpoint: %s " %e.message)
     return endpoint
 
@@ -153,7 +153,7 @@ def _get_neutron_client(module, kwargs):
     }
     try:
         neutron = client.Client('2.0', **kwargs)
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = " Error in connecting to neutron: %s " %e.message)
     return neutron
 
@@ -178,7 +178,7 @@ def _get_net_id(neutron, module):
     }
     try:
         networks = neutron.list_networks(**kwargs)
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error in listing neutron networks: %s" % e.message)
     if not networks['networks']:
         return None
@@ -216,7 +216,7 @@ def _create_network(module, neutron):
 
     try:
         net = neutron.create_network({'network':network})
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error in creating network: %s" % e.message)
     return net['network']['id']
 
@@ -224,7 +224,7 @@ def _delete_network(module, net_id, neutron):
 
     try:
         id = neutron.delete_network(net_id)
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error in deleting the network: %s" % e.message)
     return True
 

lib/ansible/modules/cloud/openstack/_quantum_router.py

@@ -101,7 +101,7 @@ def _get_ksclient(module, kwargs):
                                  password=kwargs.get('login_password'),
                                  tenant_name=kwargs.get('login_tenant_name'),
                                  auth_url=kwargs.get('auth_url'))
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error authenticating to the keystone: %s " % e.message)
     global _os_keystone
     _os_keystone = kclient
@@ -111,7 +111,7 @@ def _get_ksclient(module, kwargs):
 def _get_endpoint(module, ksclient):
     try:
         endpoint = ksclient.service_catalog.url_for(service_type='network', endpoint_type='publicURL')
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error getting network endpoint: %s" % e.message)
     return endpoint
 
@@ -125,7 +125,7 @@ def _get_neutron_client(module, kwargs):
     }
     try:
         neutron = client.Client('2.0', **kwargs)
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error in connecting to neutron: %s " % e.message)
     return neutron
 
@@ -150,7 +150,7 @@ def _get_router_id(module, neutron):
     }
     try:
         routers = neutron.list_routers(**kwargs)
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error in getting the router list: %s " % e.message)
     if not routers['routers']:
         return None
@@ -164,7 +164,7 @@ def _create_router(module, neutron):
     }
     try:
         new_router = neutron.create_router(dict(router=router))
-    except Exception, e:
+    except Exception as e:
         module.fail_json( msg = "Error in creating router: %s" % e.message)
     return new_router['router']['id']
 

lib/ansible/modules/cloud/openstack/_quantum_router_gateway.py

@@ -91,7 +91,7 @@ def _get_ksclient(module, kwargs):
                                  password=kwargs.get('login_password'),
                                  tenant_name=kwargs.get('login_tenant_name'),
                                  auth_url=kwargs.get('auth_url'))
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error authenticating to the keystone: %s " % e.message)
     global _os_keystone
     _os_keystone = kclient
@@ -101,7 +101,7 @@ def _get_ksclient(module, kwargs):
 def _get_endpoint(module, ksclient):
     try:
         endpoint = ksclient.service_catalog.url_for(service_type='network', endpoint_type='publicURL')
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error getting network endpoint: %s" % e.message)
     return endpoint
 
@@ -115,7 +115,7 @@ def _get_neutron_client(module, kwargs):
     }
     try:
         neutron = client.Client('2.0', **kwargs)
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error in connecting to neutron: %s " % e.message)
     return neutron
 
@@ -125,7 +125,7 @@ def _get_router_id(module, neutron):
     }
     try:
         routers = neutron.list_routers(**kwargs)
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error in getting the router list: %s " % e.message)
     if not routers['routers']:
             return None
@@ -138,7 +138,7 @@ def _get_net_id(neutron, module):
     }
     try:
         networks = neutron.list_networks(**kwargs)
-    except Exception, e:
+    except Exception as e:
         module.fail_json("Error in listing neutron networks: %s" % e.message)
     if not networks['networks']:
         return None
@@ -151,7 +151,7 @@ def _get_port_id(neutron, module, router_id, network_id):
     }
     try:
         ports = neutron.list_ports(**kwargs)
-    except Exception, e:
+    except Exception as e:
         module.fail_json( msg = "Error in listing ports: %s" % e.message)
     if not ports['ports']:
         return None
@@ -163,14 +163,14 @@ def _add_gateway_router(neutron, module, router_id, network_id):
     }
     try:
         neutron.add_gateway_router(router_id, kwargs)
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error in adding gateway to router: %s" % e.message)
     return True
 
 def  _remove_gateway_router(neutron, module, router_id):
     try:
         neutron.remove_gateway_router(router_id)
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error in removing gateway to router: %s" % e.message)
     return True
 

lib/ansible/modules/cloud/openstack/_quantum_router_interface.py

@@ -102,7 +102,7 @@ def _get_ksclient(module, kwargs):
                                  password=kwargs.get('login_password'),
                                  tenant_name=kwargs.get('login_tenant_name'),
                                  auth_url=kwargs.get('auth_url'))
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error authenticating to the keystone: %s " % e.message)
     global _os_keystone
     _os_keystone = kclient
@@ -112,7 +112,7 @@ def _get_ksclient(module, kwargs):
 def _get_endpoint(module, ksclient):
     try:
         endpoint = ksclient.service_catalog.url_for(service_type='network', endpoint_type='publicURL')
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error getting network endpoint: %s" % e.message)
     return endpoint
 
@@ -126,7 +126,7 @@ def _get_neutron_client(module, kwargs):
     }
     try:
         neutron = client.Client('2.0', **kwargs)
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error in connecting to neutron: %s " % e.message)
     return neutron
 
@@ -150,7 +150,7 @@ def _get_router_id(module, neutron):
     }
     try:
         routers = neutron.list_routers(**kwargs)
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error in getting the router list: %s " % e.message)
     if not routers['routers']:
         return None
@@ -165,7 +165,7 @@ def _get_subnet_id(module, neutron):
     }
     try:
         subnets = neutron.list_subnets(**kwargs)
-    except Exception, e:
+    except Exception as e:
         module.fail_json( msg = " Error in getting the subnet list:%s " % e.message)
     if not subnets['subnets']:
         return None
@@ -178,7 +178,7 @@ def _get_port_id(neutron, module, router_id, subnet_id):
     }
     try:
         ports = neutron.list_ports(**kwargs)
-    except Exception, e:
+    except Exception as e:
         module.fail_json( msg = "Error in listing ports: %s" % e.message)
     if not ports['ports']:
         return None
@@ -194,7 +194,7 @@ def _add_interface_router(neutron, module, router_id, subnet_id):
     }
     try:
         neutron.add_interface_router(router_id, kwargs)
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error in adding interface to router: %s" % e.message)
     return True
 
@@ -204,7 +204,7 @@ def  _remove_interface_router(neutron, module, router_id, subnet_id):
     }
     try:
         neutron.remove_interface_router(router_id, kwargs)
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg="Error in removing interface from router: %s" % e.message)
     return True
 

lib/ansible/modules/cloud/openstack/quantum_subnet.py

@@ -135,7 +135,7 @@ def _get_ksclient(module, kwargs):
                                  password=kwargs.get('login_password'),
                                  tenant_name=kwargs.get('login_tenant_name'),
                                  auth_url=kwargs.get('auth_url'))
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error authenticating to the keystone: %s" %e.message)
     global _os_keystone
     _os_keystone = kclient
@@ -145,7 +145,7 @@ def _get_ksclient(module, kwargs):
 def _get_endpoint(module, ksclient):
     try:
         endpoint = ksclient.service_catalog.url_for(service_type='network', endpoint_type='publicURL')
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Error getting network endpoint: %s" % e.message)
     return endpoint
 
@@ -159,7 +159,7 @@ def _get_neutron_client(module, kwargs):
     }
     try:
         neutron = client.Client('2.0', **kwargs)
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = " Error in connecting to neutron: %s" % e.message)
     return neutron
 
@@ -184,7 +184,7 @@ def _get_net_id(neutron, module):
     }
     try:
         networks = neutron.list_networks(**kwargs)
-    except Exception, e:
+    except Exception as e:
         module.fail_json("Error in listing neutron networks: %s" % e.message)
     if not networks['networks']:
             return None
@@ -204,7 +204,7 @@ def _get_subnet_id(module, neutron):
         }
         try:
             subnets = neutron.list_subnets(**kwargs)
-        except Exception, e:
+        except Exception as e:
             module.fail_json( msg = " Error in getting the subnet list:%s " % e.message)
         if not subnets['subnets']:
             return None
@@ -238,7 +238,7 @@ def _create_subnet(module, neutron):
         subnet.pop('dns_nameservers')
     try:
         new_subnet = neutron.create_subnet(dict(subnet=subnet))
-    except Exception, e:
+    except Exception as e:
         module.fail_json(msg = "Failure in creating subnet: %s" % e.message)
     return new_subnet['subnet']['id']
 
@@ -246,7 +246,7 @@ def _create_subnet(module, neutron):
 def _delete_subnet(module, neutron, subnet_id):
     try:
         neutron.delete_subnet(subnet_id)
-    except Exception, e:
+    except Exception as e:
         module.fail_json( msg = "Error in deleting subnet: %s" % e.message)
     return True