[rabbitmq-discuss] Weird unicode error popping up in pika 0.9.6

[Stephen Young]

Update: was because my queue name and routing key were unicode strings - 
pulled the latest commit to pika which now checks for that, helped me 
debug. Looks like everything has to be a bytestring in order for the 
_marshal function to generate a valid payload, otherwise python tries to 
encode everything into unicode

On Monday, August 13, 2012 9:40:53 AM UTC-4, Stephen Young wrote:
>
> Hi there,
>
> I've been using version 0.9,6 pika in a stable environment for about a 
> month and am suddenly encountering a unicode error that looks like:
>
> Traceback (most recent call last):
>   File 
> "/devel/lib/python2.7/site-packages/Twisted-12.0.0-py2.7-macosx-10.7-x86_64.egg/twisted/internet/selectreactor.py", 
> line 150, in _doReadOrWrite
>     why = getattr(selectable, method)()
>   File 
> "/devel/lib/python2.7/site-packages/Twisted-12.0.0-py2.7-macosx-10.7-x86_64.egg/twisted/internet/tcp.py", 
> line 199, in doRead
>     rval = self.protocol.dataReceived(data)
>   File "/devel/src/pika/pika/adapters/twisted_connection.py", line 378, in 
> dataReceived
>     self._on_data_available(data)
>   File "/devel/src/pika/pika/connection.py", line 701, in 
> _on_data_available
>     frame)                 # Args
>   File "/devel/src/pika/pika/callback.py", line 161, in process
>     callback(*args, **keywords)
>   File "/devel/src/pika/pika/channel.py", line 152, in 
> _on_synchronous_complete
>     self.rpc(*method)
>   File "/devel/src/pika/pika/channel.py", line 114, in rpc
>     self.send_method(method)
>   File "/devel/src/pika/pika/channel.py", line 121, in send_method
>     self.connection._send_method(self.channel_number, method, content)
>   File "/devel/src/pika/pika/connection.py", line 781, in _send_method
>     self._send_frame(pika.frame.Method(channel_number, method))
>   File "/devel/src/pika/pika/adapters/twisted_connection.py", line 355, in 
> _send_frame
>     marshalled_frame = frame.marshal()
>   File "/devel/src/pika/pika/frame.py", line 65, in marshal
>     return self._marshal(pieces)
>   File "/devel/src/pika/pika/frame.py", line 40, in _marshal
>     len(payload)) + payload + chr(spec.FRAME_END)
> exceptions.UnicodeDecodeError: 'ascii' codec can't decode byte 0xce in 
> position 0: ordinal not in range(128)
>
>
> I'm using the twisted adapter, and I have a hunch that the problem is 
> coming from there somewhere, but I'm pretty lost as far as what to do to 
> fix this bug. Anyone have any ideas?
>
> Cheers,
> Stephen 
>
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