[Python-Dev] Challenge: Please break this! (a.k.a restricted mode revisited)

Steven D'Aprano steve at pearwood.info
Sun Apr 10 23:09:19 EDT 2016

On Sun, Apr 10, 2016 at 08:12:30PM -0400, Jonathan Goble wrote:
> On Sun, Apr 10, 2016 at 7:02 PM, Oscar Benjamin
> <oscar.j.benjamin at gmail.com> wrote:
> > I haven't looked at your sandbox but for a different approach try this one:
> >
> >   L = [None]
> >   L.extend(iter(L))
> >
> > On my Linux machine that doesn't just crash Python.
> For the record: don't try this if you have unsaved files open on your
> computer, because you will lose them. When I typed these two lines
> into the Py3.5 interactive prompt, it completely and totally froze
> Windows to the point that nothing would respond and I had to resort to
> the old trick of holding the power button down for five seconds to
> forcibly shut the computer down.

I think this might improve matters:


although I must admit I don't understand why the entire OS is effected.


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