X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=test%2Fvpp_interface.py;h=2dcf149a59350c73e4ee50d4263efd839e985d35;hb=3bce8ebfdfaf2a4b576012beb3516d1f4030c20c;hp=58384d2eeb9f54e62ac077a73bc595be94c78526;hpb=dd3737284d5021e2e3bd0413b61aab14797e365c;p=vpp.git

diff --git a/test/vpp_interface.py b/test/vpp_interface.py
index 58384d2eeb9..2dcf149a593 100644
--- a/test/vpp_interface.py
+++ b/test/vpp_interface.py
@@ -1,16 +1,17 @@
 import binascii
 import socket
-from abc import abstractmethod, ABCMeta
+import abc
 
+import six
 from six import moves
 
 from util import Host, mk_ll_addr
 from vpp_papi import mac_ntop
 
 
+@six.add_metaclass(abc.ABCMeta)
 class VppInterface(object):
     """Generic VPP interface."""
-    __metaclass__ = ABCMeta
 
     @property
     def sw_if_index(self):
@@ -181,7 +182,7 @@ class VppInterface(object):
             self._hosts_by_ip4[ip4] = host
             self._hosts_by_ip6[ip6] = host
 
-    @abstractmethod
+    @abc.abstractmethod
     def __init__(self, test):
         self._test = test