Let me rephrase: type(message) in handleHeartbeat() is ListType, not
StringType as you are expecting.
See the zmq docs I referred to - your callback receives a multipart list,
not just a single blob of data.


On Fri, Mar 22, 2013 at 4:09 PM, Hielke Kramer <kram...@gmail.com> wrote:

> No, my callback is given a protobuf serialized message. Exactly the same
> as was sent in the first place.
> To explain a bit more: I've got earth and heaven. Earth sends heartbeats
> and heaven responds back. If no message has been received on either side
> for more than two seconds both ends start another task while earth keeps
> sending messages hoping for heaven to come back. The codes are as follows:
> earth.py: http://pastebin.com/tvvSZeNR
> heaven.py: http://pastebin.com/rtzCsuvg
> link to errors: http://pastebin.com/jX4SFapt
> compiled protobuf message encoder in python:
> http://www.hkramer.nl/opslag/infoPack_pb2.py
> Do you understand any of this?
> 2013/3/22 Oliver Jowett <oliver.jow...@gmail.com>
>> On Fri, Mar 22, 2013 at 8:45 AM, kramer65 <kram...@gmail.com> wrote:
>>> I've been tinkering about this all night, but with a fresh view in the
>>> morning I still can' t understand what is wrong here. The line where the
>>> error originates is this: beat.ParseFromString(message)
>> Are you sure your callback is being given a string?
>> From a quick look at
>> http://zeromq.github.com/pyzmq/api/generated/zmq.eventloop.zmqstream.html,
>> it says "callback must take exactly one argument, which will be a list, as
>> returned by socket.recv_multipart()" - i.e. not just a simple string.
>> Oliver

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