[Python-Dev] repr(x) != x.repr() (original) (raw)

Guido van Rossum guido@python.org
Thu, 28 Mar 2002 11:28:05 -0500

On Thu, Mar 28, 2002 at 10:28:12AM -0500, Guido van Rossum wrote: > I'm probably going to reject this bug as "won't fix". I specifically > put code in the new classes to create this behavior. It's partly a > performance hack: many operations become much slower if they have to > check the instance dict first. But I also believe it's poor

If this is by design it's ok. I suspected it might be an accidental result of the different internal structure of new style classes.

Yes, I thought about it long and hard and decided that it should be a feature.

> check the instance dict first. But I also believe it's poor > style to override a system operation on the instance rather than on > the class.

And if it's not a system operation? Is method assignment in general considered poor style?

That's up to the application.

Something as vile and unspeakable as changing an object's class at runtime? ;-)

I don't know what you're talking about. :-)

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