These modules are used to implement the os.path module, and
are not documented beyond this mention. There's little need to
document these.
ntpath
-- Implementation of os.path on Win32,
Win64, WinCE, and OS/2 platforms.
posixpath
-- Implementation of os.path on
POSIX.
bsddb185
-- Backwards compatibility module for systems which still use
the Berkeley DB 1.85 module. It is normally only available on
certain BSD Unix-based systems. It should
never be used directly.