The only thing I have seen is rbwrap.  It is not maintained and I
suspect that it may choke on a complex package, but I have used
it successfully on a small script.

http://www.ruby-lang.org/en/raa-list.rhtml?name=rbwrap

Dan Hable wrote:
> 
> I've been assigned the task to deploy some add on modules to our version control software. The only condition is that I need to deliver executable files to the end user. I wrote some demo apps using Perl and Perl/Tk, but I feel like stabbing myself in the eye with a pencil instead of working with Perl's OO abilities. Is there a Ruby or Python to exe generator?
> 
> Thanks,
> Dan
> 
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