import pika

class Publisher: 
    def __init__(self): 
        self.__url = 'dev-swh.ga' 
        self.__port = 5672 
        self.__vhost = '/' 
        self.__cred = pika.PlainCredentials('guest', 'guest') 
        self.__queue = 'py'; 
        
    def main(self): 
        conn = pika.BlockingConnection(pika.ConnectionParameters(self.__url, self.__port, self.__vhost, self.__cred)) 
        chan = conn.channel() 
        chan.basic_publish( exchange = '', routing_key = self.__queue, body = 'Hello RabbitMQ' ) 
        conn.close() 

publisher = Publisher() 
publisher.main()