I'm a Smalltalk programmer trying to do some "package ecosphere" research. I've gathered data from debian, and am currently processing the ruby gem space. I'd like to look at the perl module space now. What I'm hoping is to be able to list all of the publicly available perl modules (at cpan?), and then for each one compute the number of direct dependencies it has. Is this doable? Any data/hints/help/pointers much appreciated.