fix unwanted CRLF conversion on windows

[erik-smit]

python 2.x does CRLF conversion on windows by default, causing my READs to be damaged.

Took my fix from http://stackoverflow.com/questions/2374427/python-2-x-write-binary-output-to-stdout

[ehem]

Ick! Alas, looking at documentation I can see why you want to do this. :-(

First, any additions should be moved to the except clause. Using sys.stdout.buffer takes care of this in a portable way for Python 3, so something like this is only needed if the try fails (indicating Python 2).

Does:
stdout_bin = os.fdopen(os.dup(1), "wb")
in the except clause get you binary output with Python 2 on Windows? When looking for alternatives I read os.fdopen(1, "wb") doesn't work, but perhaps this is sufficient to not get optimized out by Python 2.

[Lekensteyn]

@erik-smit Thanks for your PR! Does this also work with Python 3? Can you try the suggestion from @ehem?

[erik-smit]

I don't really have time to further this, sorry.