RabbitMQ python tutorial

[duricu vlad]

Hey, I have installed pip install pika==0.11.0, as it is shown on the readme file, and after that I tried python receiver.py, and it gave me the following error:

Traceback (most recent call last):

  File "receive.py", line 9, in <module>

    channel.queue_declare(queue='hello')

  File "C:\Python36\lib\site-packages\pika\adapters\blocking_connection.py", line 2400, in queue_declare

    self._flush_output(declare_ok_result.is_ready)

  File "C:\Python36\lib\site-packages\pika\adapters\blocking_connection.py", line 1258, in _flush_output

    raise exceptions.ChannelClosed(method.reply_code, method.reply_text)

pika.exceptions.ChannelClosed: (406, "PRECONDITION_FAILED - inequivalent arg 'durable' for queue 'hello' in vhost '/': received 'false' but current is 'true'")

Even if I didn't modify anything. I tried also the spring-amqp example, and these works. Can you gave me a hint about what should I change?

[Michael Klishin]

> "PRECONDITION_FAILED - inequivalent arg 'durable' for queue 'hello' in vhost '/': received 'false' but current is 'true'"

is the line you are looking for. Take a look at the property equivalence section in http://www.rabbitmq.com/queues.html. You modifies

your example after running it once and thus having a queue declared with a different "durable" property value.

Deleting the queue and re-runing the script is the right thing to do in development. Modifying the code is another option.

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MK

Staff Software Engineer, Pivotal/RabbitMQ

[duricu vlad]

Hey, it seems to work if I delete the queue. I want to make the following test: to start the receiver from spring-amqp, and the sender from python, but when I run the python script for sending the message it gave me the same error. Should I modify the channel.queue_declare(queue='hello') or should I connect to the queue, because I am new to these. The python script I would like it to run on a raspberry pi and send data to the server witch is spring-boot .

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MK

Staff Software Engineer, Pivotal/RabbitMQ

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