LHC Computer Grid - Rollout > [mailto:[log in to unmask]] On Behalf Of Fabien Wernli said: > great so you can tell me what's each one of them and why we > need it :-) I could tell you things like xerces is an xml parser and swig generates interfaces between e.g. python and C++, but personally I don't have time to go through the whole lot. What would you learn from that? Stephen