Don't you want mode "wb"? Sounds like a classic case of opening a file in
text mode and getting LF -> CRLF translation happening on Windows.

Oliver


On 11 December 2013 06:04, Andrew Beck <abec...@gmail.com> wrote:

> Using python 2.7.6 on darwin and windows, both using protoc 2.5.0 and libs
> from 2.5.0, the python code on windows (see test.py in the attached zip)
> contains two extra bytes valued 0x0D in the message compared to the darwin
> version. These extra bytes are preventing c++ libprotobuf from parsing the
> file. Just to be sure it wasn't some null termination causing the parse to
> fail, I'm using ParsePartialFromArray in the exe.
> The same code run on darwin using the same version of python (CPython
> 2.7.6) and protobufs (2.5.0) generates the correct code and can be parsed
> with the windows and python c++ code. It appears only the python code on
> windows is producing incompatible messages.
>
> Attached is minimal code and setup for reproducing the problem:
> Entity.proto (protobuf def)
> main.cpp (c++ parsing code)
> test.py (python code generating protobuf message)
> test_Darwin.pb (the output from the python file on darwin)
> test_Windows.pb (the output from the python file on windows)
> wscript (simple waf script for building these files)
>
>
> Any help would be greatly appreciated since this is a major issue for my
> project.
> Thanks!
> /andrew
>
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