In #1435, @thezbyg reveals that if signal handlers are configured through a config file, they bypass the subscribe mechanism, and thus _priorities on the bus aren't configured for that channel/listener pair, and thus a KeyError will occur in Bus.publish when a message is published on that channel.
In #1435, @thezbyg reveals that if signal handlers are configured through a config file, they bypass the
subscribemechanism, and thus_prioritieson the bus aren't configured for that channel/listener pair, and thus a KeyError will occur in Bus.publish when a message is published on that channel.