[rabbitmq-discuss] First Python sample (send.py) gives error: AttributeError: 'ProtocolHeader' object has no attribute 'channel_number'

Mon Feb 20 11:32:49 GMT 2012

On Fri, Feb 17, 2012 at 16:19, xdnny <xdaan.dll at gmail.com> wrote:
> Hello,
>
> well, for me it doesn't work.

You must be doing something wrong. Pika 0.9.5 works fine with
RabbitMQ 2.x.

Marek

> OS: Scientific Linux 6.2 - 2.6.32-220.4.1.el6.i686 (RHEL)
> Python: 2.6.6
> Pika: 0.9.5
> RabbitMQ: rabbitmq-server-2.6.1 (also tried rabbitmq-server-2.7.1 from
> rabbitmq.com)
>
> After running an example "send.py" from https://www.rabbitmq.com/tutorials/tutorial-one-python.html,
> here is the error:
>
> AttributeError: 'ProtocolHeader' object has no attribute
> 'channel_number'
>
> Full stack trace:
>
> python send.py
> Traceback (most recent call last):
>  File "send.py", line 7, in <module>
>    host='localhost'))
>  File "/usr/lib/python2.6/site-packages/pika/adapters/
> blocking_connection.py", line 32, in __init__
>    BaseConnection.__init__(self, parameters, None,
> reconnection_strategy)
>  File "/usr/lib/python2.6/site-packages/pika/adapters/
> base_connection.py", line 50, in __init__
>    reconnection_strategy)
>  File "/usr/lib/python2.6/site-packages/pika/connection.py", line
> 170, in __init__
>    self._connect()
>  File "/usr/lib/python2.6/site-packages/pika/connection.py", line
> 228, in _connect
>    self.parameters.port or  spec.PORT)
>  File "/usr/lib/python2.6/site-packages/pika/adapters/
> blocking_connection.py", line 44, in _adapter_connect
>    self._handle_read()
>  File "/usr/lib/python2.6/site-packages/pika/adapters/
> base_connection.py", line 162, in _handle_read
>    self._on_data_available(data)
>  File "/usr/lib/python2.6/site-packages/pika/connection.py", line
> 597, in _on_data_available
>    elif frame.channel_number > 0:
> AttributeError: 'ProtocolHeader' object has no attribute
> 'channel_number'
>
> On Jul 1 2011, 9:02 pm, Marek Majkowski <maje... at gmail.com> wrote:
>> On Fri, Jul 1, 2011 at 20:05, Matt Pietrek <mpiet... at skytap.com> wrote:
>> > Indeed. Lesson learned for me.
>>
>> > With the newer version (2.5.1), the sample app works as expected.
>>
>> > Thanks much to both of your for your replies,
>>
>> Yeah, sorry for that. RabbitMQ moves a bit faster than linux distributions :)
>>
>> (although, that's a lesson for us - client packages should support
>> "old" releases!)
>>
>> I'm glad you were able to get it working.
>>
>> Cheers,
>>    Marek
>> _______________________________________________
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