egg(1) is probably the best choice IMO.  It doesn't conflict with any
other existing *nix command that I can tell, and I can't think of a
better command for dealing with Python eggs.  It's immediately
evocative.  Now that I think about it, maybe it was 'egg' that you
wanted to reserve.  I like 'egg' too because Ruby gems are managed
with the gem(1) command so there's a parallel that is easily remembered.