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

Fri Jul 1 18:14:00 BST 2011

Mark,

Thanks for getting back to me.

Yes, I installed it exactly as specified on the tutorial page. I
copied/pasted the command line.

Just to be sure, I ran it again and got this output:

foo at foo:~$ sudo pip install -e
git+http://github.com/pika/pika.git@v0.9.5#egg=pika-v0.9.5
Checking out pika-v0.9.5 from
git+http://github.com/pika/pika.git@v0.9.5#egg=pika-v0.9.5 checkout from
git+http://github.com/pika/pika.git@v0.9.5#egg=pika-v0.9.5
  Cloning http://github.com/pika/pika.git (to revision v0.9.5) to
./src/pika-v0.9.5
  Running setup.py egg_info for package pika-v0.9.5
Installing collected packages: pika-v0.9.5
  Running setup.py develop for pika-v0.9.5
    Creating /usr/local/lib/python2.6/dist-packages/pika.egg-link (link to
.)
    Adding pika 0.9.5 to easy-install.pth file

    Installed /home/highland/src/pika-v0.9.5
Successfully installed pika-v0.9.5

On 7/1/11 3:22 AM, "Marek Majkowski" <majek04 at gmail.com> wrote:

>Matt,
>
>Looks like you have a wrong version of pika.
>
>Are you sure you have pika 0.9.5 exactly?
>
>Have you installed it as suggested on the tutorial page, using pip:
>   pip install -e 
>git+http://github.com/pika/pika.git@v0.9.5#egg=pika-v0.9.5
>
>Cheers!
>  Marek
>
>On Thu, Jun 30, 2011 at 23:13, Matt Pietrek <mpietrek at skytap.com> wrote:
>> I've just now followed the directions verbatim from
>> here: http://www.rabbitmq.com/tutorials/tutorial-one-python.html
>> I've copied/pasted the sample code for send.py and receive.py directly
>>from
>> the web page so as to eliminate errors. Unfortunately, I'm getting the
>> following error:
>>
>> foo at foo-desktop:~/rabbitmq-test$ python send.py
>>
>> Traceback (most recent call last):
>>
>>   File "send.py", line 4, in <module>
>>
>>     connection =
>> pika.BlockingConnection(pika.ConnectionParameters(host='localhost'))
>>
>>   File "/home/foo/src/pika-v0.9.5/pika/adapters/blocking_connection.py",
>> line 32, in __init__
>>
>>     BaseConnection.__init__(self, parameters, None,
>>reconnection_strategy)
>>
>>   File "/home/foo/src/pika-v0.9.5/pika/adapters/base_connection.py",
>>line
>> 50, in __init__
>>
>>     reconnection_strategy)
>>
>>   File "/home/foo/src/pika-v0.9.5/pika/connection.py", line 170, in
>>__init__
>>
>>     self._connect()
>>
>>   File "/home/foo/src/pika-v0.9.5/pika/connection.py", line 228, in
>>_connect
>>
>>     self.parameters.port or  spec.PORT)
>>
>>   File "/home/foo/src/pika-v0.9.5/pika/adapters/blocking_connection.py",
>> line 44, in _adapter_connect
>>
>>     self._handle_read()
>>
>>   File "/home/foo/src/pika-v0.9.5/pika/adapters/base_connection.py",
>>line
>> 162, in _handle_read
>>
>>     self._on_data_available(data)
>>
>>   File "/home/foo/src/pika-v0.9.5/pika/connection.py", line 597, in
>> _on_data_available
>>
>>     elif frame.channel_number > 0:
>>
>> AttributeError: 'ProtocolHeader' object has no attribute
>>'channel_number'
>>
>> Python version is 2.6.5. I'm running this on an ubuntu 10.4 system. Pip
>>and
>> Pika were downloaded today per the web site instructions.
>>
>> I've searched everywhere and can't see the error referenced.
>>
>> Many thanks to anybody that can help me.
>>
>> Matt Pietrek.
>>
>>
>> _______________________________________________
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>> rabbitmq-discuss at lists.rabbitmq.com
>> https://lists.rabbitmq.com/cgi-bin/mailman/listinfo/rabbitmq-discuss
>>
>>