[Python-Dev] Add os.path.resolve to simplify the use of os.readlink

[Antoine Pitrou]

On Thu, 21 Jun 2012 11:10:44 -0000
"Armin Ronacher" <armin.ronacher at active-4.com> wrote:
> Hi,
> 
> > Am 21.06.2012 12:23, schrieb Armin Ronacher:
> > Does the code handle a chain of absolute and relative symlinks
> > correctly, for example a relative symlink that points to another
> > relative symlink in a different directory that points to a file in a
> > third directry?
> No, but that's a good point.  It should attempt to resolve these in a loop
> until it either loops too often (would have to check the POSIX spec for a
> reasonable value) or until it terminates by finding an actual file or
> directory.

You could take a look at the resolve() algorithm in pathlib:
http://pypi.python.org/pypi/pathlib/

Regards

Antoine.