from pyroute2 import DL

dl = DL()
for q in dl.get_port_dump():
    print(
        '%s\t%s\t%u'
        % (
            q.get_attr('DEVLINK_ATTR_BUS_NAME'),
            q.get_attr('DEVLINK_ATTR_DEV_NAME'),
            q.get_attr('DEVLINK_ATTR_PORT_INDEX'),
        )
    )
dl.close()