def deadlettering_exchange(self, rabbit_config, exchange, queue): conn = Connection(rabbit_config[AMQP_URI_CONFIG_KEY]) with connections[conn].acquire(block=True) as connection: deadletter_exchange = Exchange(name="deadletter", type="topic") deadletter_exchange.maybe_bind(connection) deadletter_exchange.declare() deadletter_queue = Queue( name="deadletter", exchange=deadletter_exchange, routing_key="#", queue_arguments={'x-dead-letter-exchange': exchange.name}) deadletter_queue.maybe_bind(connection) deadletter_queue.declare() return deadletter_exchange