vyos.configverify: T4255: fix unexpected print of dictionary instead of key

(cherry picked from commit 9e626ce7bad2bd846826822a3622fedf2d937e09)

1 files changed, 4 insertions, 3 deletions

diff --git a/python/vyos/configverify.py b/python/vyos/configverify.py
index 3aece499e..6566e8863 100644
--- a/python/vyos/configverify.py
+++ b/python/vyos/configverify.py
@@ -196,9 +196,10 @@ def verify_bridge_delete(config):
     when interface also is part of a bridge.
     """
     if 'is_bridge_member' in config:
-        raise ConfigError(
-            'Interface "{ifname}" cannot be deleted as it is a '
-            'member of bridge "{is_bridge_member}"!'.format(**config))
+        interface = config['ifname']
+        for bridge in config['is_bridge_member']:
+            raise ConfigError(f'Interface "{interface}" cannot be deleted as it '
+                              f'is a member of bridge "{bridge}"!')
 
 def verify_interface_exists(ifname):
     """