[rabbitmq-discuss] "Hello World" not work for rabbitmq

[fanchyna]

Hi, I am new to rabbitmq, but for some (unknown) reason, the "hello
world" program does not work for me.
The send.py and receive.py are simply copied and pasted from the
tutorial page:

http://www.rabbitmq.com/tutorials/tutorial-one-python.html

rabbitmq is installed using "yum" on a RHEL 6. Python version is 2.6.
I started the server using

$ service rabbitmq-server start

and it prints "SUCCESS".

There is no error or warning messages by running send.py and
receive.py:

$ python send.py
 [x] Sent 'Hello World!'

$ python receive.py
 [*] Waiting for messages. To exit press CTRL+C

Then it never prints "Hello World!".

What's wrong with it?