setup.py question

[Eric S. Johansson]

I have an environment where I have a bunch of data files or use would like 
Python application.  I want to use the data_files specification of set up to 
distribute those files.  But I also need to change ownership and permissions.  I 
know there's some way to do this because I've done it once before but I can't 
find how I did it and I can't find how to do in the documentation.  Any pointers 
on how to set ownership and permissions for files listed in the data_file 
section of a setup call would be wonderful.  For what it's worth, I have 
modified install(_install) methods to handle set gid wrappers.  It's a cool 
abuse of setup.  :-)

thanks