Python 3.3.0
sys.getdefaultencoding(): utf-8
sys.getfilesystemencoding(): mbcs
locale.getpreferredencoding(False): cp1252
locale.getpreferredencoding(True): cp1252

----- os.listdir(b'.')
[b'??????? ???']

----- os.listdir(u'.')
['\u0420\u0443\u0441\u0441\u043a\u043e\u0435 \u0438\u043c\u044f']

*** Error:
Traceback (most recent call last):
  File "testserh.py", line 49, in <module>
    bname = os.fsencode(uname)
  File "C:\Python33\lib\os.py", line 798, in fsencode
    return filename.encode(encoding, errors)
UnicodeEncodeError: 'mbcs' codec can't encode characters in position 0--1: invalid character

----- os.stat('\u0420\u0443\u0441\u0441\u043a\u043e\u0435 \u0438\u043c\u044f')
nt.stat_result(st_mode=16895, st_ino=9851624184997219, st_dev=0, st_nlink=1, st_uid=0, st_gid=0, st_size=0, st_atime=1355437172, st_mtime=1355437172, st_ctime=1355437172)