vrf: T31: move to Python3 f-strings where possible

1 files changed, 6 insertions, 5 deletions

diff --git a/src/conf_mode/vrf.py b/src/conf_mode/vrf.py
index 6b53d052a..991c5cb2c 100755
--- a/src/conf_mode/vrf.py
+++ b/src/conf_mode/vrf.py
@@ -169,24 +169,25 @@ def verify(vrf_config):
     # ensure VRF is not assigned to any interface
     for vrf in vrf_config['vrf_remove']:
         if len(vrf['interfaces']) > 0:
-            raise ConfigError('VRF {} can not be deleted. It has active member interfaces!'.format(vrf['name']))
+            raise ConfigError(f"VRF {vrf['name']} can not be deleted. It has active member interfaces!")
 
         if len(vrf['routes']) > 0:
-            raise ConfigError('VRF {} can not be deleted. It has routing protocols attached!'.format(vrf['name']))
+            raise ConfigError(f"VRF {vrf['name']} can not be deleted. It has active routing protocols!")
 
     table_ids = []
     for vrf in vrf_config['vrf_add']:
         # table id is mandatory
         if not vrf['table']:
-            raise ConfigError('VRF {} table id is mandatory!'.format(vrf['name']))
+            raise ConfigError(f"VRF {vrf['name']} table id is mandatory!")
 
         # routing table id can't be changed - OS restriction
         if vrf['table_mod']:
-            raise ConfigError('VRF {} table id modification is not possible!'.format(vrf['name']))
+            raise ConfigError(f"VRF {vrf['name']} table id modification is not possible!")
 
         # VRf routing table ID must be unique on the system
         if vrf['table'] in table_ids:
-            raise ConfigError('VRF {} table id "{}" is not unique!'.format(vrf['name'], vrf['table']))
+            raise ConfigError(f"VRF {vrf['name']} table id {vrf['table']} is not unique!")
+
         table_ids.append(vrf['table'])
 
     return None