[keysersosa]

A lot of the decisions made in designing web.py were also carried over to tornado's web framework (which not coincidentally is also a web.py).

At the time (and I have to admit my memory is a little foggy as it was 7 years ago), I believe we mostly switched away from it for maintainability reasons. It wasn't under active development, and we were in the middle of a complete MVC rewrite to impose some order on some otherwise organically grown code.