nested exceptions?

[Just van Rossum]

In article <a9ufpv$6hb$1 at panix1.panix.com>, aahz at pythoncraft.com (Aahz) 
wrote:

> ...and if you're using Python 2.2, write it as
> 
>     while oid not in objects:
> 
> 
> Hmmmm....  it occurs to me that those of us teaching Python will need to
> be *very* careful in making sure that people avoid 'in' over lists.

I'm already happy if they don't do

  if x in d.keys(): ...

:-)

Just