[Python-Dev] os.path.diff(path1, path2)

Greg Ewing greg.ewing at canterbury.ac.nz
Tue Sep 20 04:30:43 CEST 2005

Matthias Andreas Benkard wrote:

> /home -> usr/home
> /usr
> /usr/home
> What does os.path.diff("/home/", "/usr/") yield? "../usr/", I would
> presume? But that's obviously wrong:

IMO, the relpath method should just work textually on
the pathnames. It's up to the user to ensure it makes
sense to do so, e.g. by resolving symlinks beforehand
if necessary.

The alternative would be for relpath to do this itself,
but that would make it very unusual compared to the
other path-munging functions, none of which touch the file

Greg Ewing, Computer Science Dept, +--------------------------------------+
University of Canterbury,	   | A citizen of NewZealandCorp, a	  |
Christchurch, New Zealand	   | wholly-owned subsidiary of USA Inc.  |
greg.ewing at canterbury.ac.nz	   +--------------------------------------+

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