design question: no new attributes

[Alan Isaac]

"Steven D'Aprano" <steve at REMOVEME.cybersource.com.au> wrote in message
news:pan.2007.02.28.02.39.13.562362 at REMOVEME.cybersource.com.au...
> The easy, but inelegant, way is to set a flag.

That is the approach I explored here:
http://mail.python.org/pipermail/python-list/2007-February/428562.html
Btw, I add some background comments about "why" here:
http://mail.python.org/pipermail/python-list/2007-February/428651.html

fwiw,
Alan Isaac