Ok, that makes sense now. However, I'm not sure exactly how to make this work and since it's a style/code organization thing, I don't think my time is best spent on re-writing things at this time. Can we put this as an issue (making all Services defined in ```__main__``` and writing correct interfaces to them) so that I can get a working version of pisa available for people to start using asap? (and so I can work on plots and other things for neutrino 2014).