[Python-Dev] Emit a BytesWarning on bytes filenames on Windows

["Martin v. Löwis"]

> Therefore, as you imply, I think the solution to this issue is to start
> the process of deprecating the bytes version of the api in py3k with a
> view to removing it completely - possibly with a less aggressive
> timeline than normal.  In Python 2.7, I think documenting the issue and
> a recommendation to always use unicode is sufficient (ie, we can't
> deprecate it and a new BytesWarning seems gratuitous.)

That sounds all fine to me.

Regards,
Martin