There is no problem if they have no __del__ method.
On Feb 1, 5:24 pm, Jonathan Lundell <jlund...@pobox.com> wrote: > On Feb 1, 2011, at 12:16 PM, Massimo Di Pierro wrote: > > > > > I agree with Armin that in the case of exec (and web2py uses exec), > > the self references are created whether you want them or not. That > > means one should not define classes in Models and Controllers. I have > > issued that warning already to our users and, I have never seen this > > being a problem in practice. > > > Nothing in life is perfect and every design decision has a tradeoff. > > > What would really be useful to us is an example of how to overcome > > that problem by showing how to break those implicit self references. > > I agree. This is a subtle problem that isn't all that obvious to most of us, > including me. > > I've got classes defined in models (it's sort of the obvious place to define > custom validators, for example), and I'd like to understand the implications > better than I do.
