import abc
-import six
from vpp_pg_interface import is_ipv6_misc
from vpp_interface import VppInterface
-@six.add_metaclass(abc.ABCMeta)
-class VppTunnelInterface(VppInterface):
+class VppTunnelInterface(VppInterface, metaclass=abc.ABCMeta):
""" VPP tunnel interface abstraction """
def __init__(self, test, parent_if):