[Python-3000] Unicode and OS strings

["Martin v. Löwis"]

> The filesystem is unrelated to sys.argv, except for the need to pass
> filenames through argv.  If the filesystem is using bytes rather than
> characters, then sys.argv must offer the same option, or else certain
> scripts will (under some rare circumstances) fail.

The same holds for file names on Windows - they aren't byte strings,
either.

Regards,
Martin