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)
This is the *exact* same line which I use on the other end to parse the
message. I googled the error (*"expected a character, but string of length
2 found*") and it seems to have something to do with unicode strings. But I
don't make use of unicode at all.
I start wondering if zeromq does something wrong but I couldn't imagine
what. I tested the code with just sending a string ('beat') and that worked
fine. The error only occured from the moment I used protobuf serialization.
Here is the code on pastebin with the error on line 54:
http://pastebin.com/aJLCn7TM
Any help?
Op vrijdag 22 maart 2013 01:37:16 UTC+1 schreef kramer65 het volgende:
>
> Hello,
>
> I am doing some tests with protobuf and I run into a strange error. I
> serialize a message (just one int32) which I send as a heartbeat via
> zeromq. When it is received on the other end I can parse it and print it.
> If I send the exact same message back (either the unpacked message or the
> same int repacked) I get an error while parsing it back in the first
> script. The strange thing is that it first succeeds to parse, but after
> sending it back it gives the error below.
>
> Would anybody know whats wrong here? All tips are welcome!
>
>
> ERROR:root:Uncaught exception, closing connection.
> Traceback (most recent call last):
> File
> "/usr/local/lib/python2.7/dist-packages/pyzmq-2.2.0.1-py2.7-linux-i686.egg/zmq/eventloop/zmqstream.py",
>
> line 414, in _run_callback
> callback(*args, **kwargs)
> File "heartBeat.py", line 56, in handleHeartBeat
> beat.ParseFromString(message)
> File
> "/usr/local/lib/python2.7/dist-packages/protobuf-2.4.1-py2.7.egg/google/protobuf/message.py",
>
> line 179, in ParseFromString
> self.MergeFromString(serialized)
> File
> "/usr/local/lib/python2.7/dist-packages/protobuf-2.4.1-py2.7.egg/google/protobuf/internal/python_message.py",
>
> line 755, in MergeFromString
> if self._InternalParse(serialized, 0, length) != length:
> File
> "/usr/local/lib/python2.7/dist-packages/protobuf-2.4.1-py2.7.egg/google/protobuf/internal/python_message.py",
>
> line 774, in InternalParse
> (tag_bytes, new_pos) = local_ReadTag(buffer, pos)
> File
> "/usr/local/lib/python2.7/dist-packages/protobuf-2.4.1-py2.7.egg/google/protobuf/internal/decoder.py",
>
> line 172, in ReadTag
> while ord(buffer[pos]) & 0x80:
> TypeError: ord() expected a character, but string of length 2 found
> ERROR:root:Uncaught exception, closing connection.
> Traceback (most recent call last):
> File
> "/usr/local/lib/python2.7/dist-packages/pyzmq-2.2.0.1-py2.7-linux-i686.egg/zmq/eventloop/zmqstream.py",
>
> line 440, in _handle_events
> self._handle_recv()
> File
> "/usr/local/lib/python2.7/dist-packages/pyzmq-2.2.0.1-py2.7-linux-i686.egg/zmq/eventloop/zmqstream.py",
>
> line 472, in _handle_recv
> self._run_callback(callback, msg)
> File
> "/usr/local/lib/python2.7/dist-packages/pyzmq-2.2.0.1-py2.7-linux-i686.egg/zmq/eventloop/zmqstream.py",
>
> line 414, in _run_callback
> callback(*args, **kwargs)
> File "heartBeat.py", line 56, in handleHeartBeat
> beat.ParseFromString(message)
> File
> "/usr/local/lib/python2.7/dist-packages/protobuf-2.4.1-py2.7.egg/google/protobuf/message.py",
>
> line 179, in ParseFromString
> self.MergeFromString(serialized)
> File
> "/usr/local/lib/python2.7/dist-packages/protobuf-2.4.1-py2.7.egg/google/protobuf/internal/python_message.py",
>
> line 755, in MergeFromString
> if self._InternalParse(serialized, 0, length) != length:
> File
> "/usr/local/lib/python2.7/dist-packages/protobuf-2.4.1-py2.7.egg/google/protobuf/internal/python_message.py",
>
> line 774, in InternalParse
> (tag_bytes, new_pos) = local_ReadTag(buffer, pos)
> File
> "/usr/local/lib/python2.7/dist-packages/protobuf-2.4.1-py2.7.egg/google/protobuf/internal/decoder.py",
>
> line 172, in ReadTag
> while ord(buffer[pos]) & 0x80:
> TypeError: ord() expected a character, but string of length 2 found
> ERROR:root:Exception in I/O handler for fd <zmq.core.socket.Socket object
> at 0x9bfd23c>
> Traceback (most recent call last):
> File
> "/usr/local/lib/python2.7/dist-packages/pyzmq-2.2.0.1-py2.7-linux-i686.egg/zmq/eventloop/ioloop.py",
>
> line 346, in start
> self._handlers[fd](fd, events)
> File
> "/usr/local/lib/python2.7/dist-packages/pyzmq-2.2.0.1-py2.7-linux-i686.egg/zmq/eventloop/zmqstream.py",
>
> line 440, in _handle_events
> self._handle_recv()
> File
> "/usr/local/lib/python2.7/dist-packages/pyzmq-2.2.0.1-py2.7-linux-i686.egg/zmq/eventloop/zmqstream.py",
>
> line 472, in _handle_recv
> self._run_callback(callback, msg)
> File
> "/usr/local/lib/python2.7/dist-packages/pyzmq-2.2.0.1-py2.7-linux-i686.egg/zmq/eventloop/zmqstream.py",
>
> line 414, in _run_callback
> callback(*args, **kwargs)
> File "heartBeat.py", line 56, in handleHeartBeat
> beat.ParseFromString(message)
> File
> "/usr/local/lib/python2.7/dist-packages/protobuf-2.4.1-py2.7.egg/google/protobuf/message.py",
>
> line 179, in ParseFromString
> self.MergeFromString(serialized)
> File
> "/usr/local/lib/python2.7/dist-packages/protobuf-2.4.1-py2.7.egg/google/protobuf/internal/python_message.py",
>
> line 755, in MergeFromString
> if self._InternalParse(serialized, 0, length) != length:
> File
> "/usr/local/lib/python2.7/dist-packages/protobuf-2.4.1-py2.7.egg/google/protobuf/internal/python_message.py",
>
> line 774, in InternalParse
> (tag_bytes, new_pos) = local_ReadTag(buffer, pos)
> File
> "/usr/local/lib/python2.7/dist-packages/protobuf-2.4.1-py2.7.egg/google/protobuf/internal/decoder.py",
>
> line 172, in ReadTag
> while ord(buffer[pos]) & 0x80:
> TypeError: ord() expected a character, but string of length 2 found
>
>
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