send.py

#!/usr/bin/env python
import pika

connection = pika.BlockingConnection(pika.ConnectionParameters('localhost'))
channel = connection.channel()

#We're connected now, to a broker on the local machine - hence the localhost. 
# If we wanted to connect to a broker on a different machine we'd simply specify its name or IP address here. 
#Next, before sending we need to make sure the recipient queue exists. 
# If we send a message to non-existing location, RabbitMQ will just drop the message. 
# Let's create a hello queue to which the message will be delivered:
channel.queue_declare(queue='hello')

channel.basic_publish(exchange='',
                      routing_key='hello',
                      body='Hello World!')
print(" [x] Sent 'Hello World!'")

#Before exiting the program we need to make sure the network buffers were flushed and our message was actually delivered to RabbitMQ. 
# We can do it by gently closing the connection.

connection.close()