dummy: T2241: minor code cleanup

No need to call .keys() on a dict when searching for a key. Also drop the
unused "import os" call.

1 files changed, 3 insertions, 5 deletions

diff --git a/src/conf_mode/interfaces-dummy.py b/src/conf_mode/interfaces-dummy.py
index 44fc9cb9e..55c783f38 100755
--- a/src/conf_mode/interfaces-dummy.py
+++ b/src/conf_mode/interfaces-dummy.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 #
-# Copyright (C) 2019-2020 VyOS maintainers and contributors
+# Copyright (C) 2019-2021 VyOS maintainers and contributors
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 or later as
@@ -14,8 +14,6 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-import os
-
 from sys import exit
 
 from vyos.config import Config
@@ -42,7 +40,7 @@ def get_config(config=None):
     return dummy
 
 def verify(dummy):
-    if 'deleted' in dummy.keys():
+    if 'deleted' in dummy:
         verify_bridge_delete(dummy)
         return None
 
@@ -58,7 +56,7 @@ def apply(dummy):
     d = DummyIf(dummy['ifname'])
 
     # Remove dummy interface
-    if 'deleted' in dummy.keys():
+    if 'deleted' in dummy:
         d.remove()
     else:
         d.update(dummy)