does python have useless destructors?

[Michael Hudson]

Roy Smith <roy at panix.com> writes:

> > > Maybe I don't need it, maybe 310 gives me RAII and that's what
> > > I really need.  I don't know, but again, 310 doesn't give me
> > > anything of consequence in terms of software architecture.
> 
> I just read PEP-310, and there's something I don't understand.  It says:
> 
> >     Note that this makes using an object that does not have an
> >     __exit__() method a fail-fast error.
> 
> What does "fail-fast" mean?

Hmm, that should be clarified.  Basically the idea is that you'll get
an attribute error if you try to use an object in a with: clause that
isn't meant to be used there (as opposed to your program doing
something other than what you expect).

Cheers,
mwh

-- 
  I'd certainly be shocked to discover a consensus.  ;-)
                                             -- Aahz, comp.lang.python