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From: Ian Kelly <ian.g.kelly@gmail.com>
Date: Mon, 2 Jun 2014 09:47:29 -0600
Subject: Re: Obfuscated Python hack
To: Python <python-list@python.org>
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Xref: csiph.com comp.lang.python:72418

On Mon, Jun 2, 2014 at 9:38 AM, Steven D'Aprano
<steve+comp.lang.python@pearwood.info> wrote:
> On Mon, 02 Jun 2014 23:23:53 +1000, Chris Angelico wrote:
>
>> On Mon, Jun 2, 2014 at 10:27 PM, Tim Chase
>> <python.list@tim.thechases.com> wrote:
>>> Stripping off the exec() call makes it pretty transparent that you're
>>> attempting (successfully on some platforms) to set the value of "4" to
>>> "5".  But a cute hack.
>>
>> And not on Windows inside IDLE, where attempting to use 4 results in a
>> ===== RESTART ===== crash.
>
> Sounds like a bug in IDLE.
>
> What happens if you try it in Windows without IDLE, just using the
> standard interactive interpreter?

Actually, probably a 32/64-bit issue.  The code as supplied caused a
segfault on my 64-bit Linux install.  I had to change the offset to 16
to see it work.