[Zope3-dev] trigger persistence

[Guido van Rossum]

> I've seen code that says this:
> 
>         self._registry = self._registry #trigger persistence, if pertinent
> 
> Wouldn't it be clearer to say this directly?
> 
>         self._p_changed = 1
> 
> Then there would be no mystery and no need for a comment.

OTOH one could claim it exposes more internal details of the
persistence mechanisms.  If in the future the persistence API changes
(e.g. you'd have to call self._p_changed(), or whatever), the latter
solution would break, while the former idom would (presumably) still
work.

--Guido van Rossum (home page: http://www.python.org/~guido/)