Font used in python.org logo?

Really sorry to bother you, but I was wondering what font was used in 
the final official python.org logo, the "powered by python" logo, the 
"python.org trac" logo, etc.  I've found references in the mailing list 
archives to "Opus" and "opus/officana", but only referring to 
out-of-date candidates for the logo, and I wasn't able to locate any 
fonts by that name on the web (with google).  The closest thing was a 
font family called "ITC Officina".  The Sans and Display versions are 
very similar, but the version in the logo seems to have pieces removed 
from the "p", "n", "r" and "d" in a consistent fashion, and the "y" is 
rounded rather than angular.

I very much prefer the variant used in the logo.  Could you please tell 
me where you found/bought it, and what it's called?  I assume because of 
the similarity that it's a licensed variant of Officina, but if it's a 
custom knockoff, could I perhaps have a copy?  Thanks.