macpath
This module provides a subset of the pathname manipulation functions
available from the optional standard module posixpath. It is
best accessed through the more portable standard module os, as
os.path.
The following functions are available in this module:
normcase,
normpath,
isabs,
join,
split,
isdir,
isfile,
walk,
exists.
For other functions available in posixpath dummy counterparts
are available.