On Wed, 23 Aug 2023 12:41:56 +0100 Donald Hunter wrote: > + def get_mcast_id(self, mcast_name, mcast_groups): > + if mcast_name not in mcast_groups: > + raise Exception(f'Multicast group "{mcast_name}" not present in the spec') > + return mcast_groups[mcast_name].value > + if you repost - missing extra empty line here > +class GenlProtocol(NetlinkProtocol): > + def __init__(self, family_name):