How can you specify the queue to push messages in RabbitMQ?

To specify the queue for pushing messages in RabbitMQ, you need to follow these steps: RabbitMQ is a message broker that allows for message publishing and subscribing using the AMQP protocol.

1. Connect to the RabbitMQ server.
2. I’m bringing in the ‘pika’ library and then establishing a connection to the localhost server, creating a channel for communication.
3. Declare a queue.
4. Declare a queue with the name ‘my_queue’ on the channel.
5. Publish a message to a specified queue.
6. Publish ‘Hello World!’ to the queue named ‘my_queue’ without specifying any exchange.
7. Close the connection.
8. Close the connection.

In the above code, we declared a queue named my_queue using the channel.queue_declare() method, and then published a message to that queue using the channel.basic_publish() method.

In RabbitMQ, messages are forwarded through exchanges, and queues are bound to the exchanges. In the code above, we use an empty string to indicate the default direct exchange, and then specify the queue to send messages to using the routing_key parameter.

Note: In practical use, it may also be necessary to consider issues such as message persistence and message confirmation. The above code is only for demonstrating the basic process of message publishing.