It's my mistake.
I forgot to open file as 'Binary' mode.
fds.ParseFromString(open('foo.desc', 'rb').read())
This solved the problem cleary.
Sorry..
On 3월2일, 오전10시28분, haje01 <haj...@gmail.com> wrote:
> I am using protobuf v2.4.0 in Windows and having problems.
>
> Say I have following message file. 'foo.proto'
>
> message School
> {
> optional int32 students = 1;
> }
>
> from which I generated description set file 'foo.desc' like this:
>
> protoc -o foo.desc foo.proto
>
> and, reading description set file..
>
> from google.protobuf.descriptor_pb2 import FileDescriptorSet
>
> fds = FileDescriptorSet()
> fds.ParseFromString(open('foo.desc').read())
>
> generates following error message:
>
> File "build\bdist.win32\egg\google\protobuf\message.py", line 179,
> in ParseFromString
> File "build\bdist.win32\egg\google\protobuf\internal
> \python_message.py", line 755, in MergeFromString
> File "build\bdist.win32\egg\google\protobuf\internal
> \python_message.py", line 782, in InternalParse
> File "build\bdist.win32\egg\google\protobuf\internal\decoder.py",
> line 521, in DecodeRepeatedField
> google.protobuf.message.DecodeError: Truncated message.
>
> Strangely enough, when I changed field name from 'students' to
> 'student', no error occurred.
>
> Any ideas?
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