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Current location: http://trentm.com/projects/which/

About getting Trent to actively contribute, I'll cite the 
linked page:

  "I also would be happy to have this be a replacement for 
the which.py in the Python CVS tree at dist/src/Tools/
scripts/which.py which is Unix-specific and not usable as a 
module; and perhaps for inclusion in the stdlib."

So I do not think this will be a problem.
(No way of cc:ing someone for sf.net replies? I will try 
contacting him directly, cc:ing you.)

cheers