Message 70943 - Python tracker
Hmm, I suppose that while the filename is latin1-encoded, Py_FileSystemDefaultEncoding is "utf-8" and therefore os.listdir fails decoding the filename and falls back on returning a byte string. It was acceptable in Python 2.x but is a very annoying problem in py3k now that unicode and bytes objects can't be mixed together anymore. I'm bumping this to critical, although there is probably no clean solution.