Re: Obfuscated Python hack

References	<538c69d5$0$29978$c3e8da3$5496439d@news.astraweb.com> <20140602072718.071feab3@bigbox.christie.dr> <mailman.10558.1401715441.18130.python-list@python.org> <538c9a78$0$29978$c3e8da3$5496439d@news.astraweb.com> <CALwzidmCjMLk7TrgY7J0H-_75fge_GyKJXgucc_Gs_mLRcQY2g@mail.gmail.com>
Date	2014-06-03 01:56 +1000
Subject	Re: Obfuscated Python hack
From	Chris Angelico <rosuav@gmail.com>
Newsgroups	comp.lang.python
Message-ID	<mailman.10564.1401724608.18130.python-list@python.org> (permalink)

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On Tue, Jun 3, 2014 at 1:47 AM, Ian Kelly <ian.g.kelly@gmail.com> wrote:
> 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.

My test was a 32-bit Python 2.7.4, for what it's worth.

ChrisA

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Thread

Obfuscated Python hack Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-06-02 12:11 +0000
  Re: Obfuscated Python hack Tim Chase <python.list@tim.thechases.com> - 2014-06-02 07:27 -0500
    Re: Obfuscated Python hack Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2014-06-03 17:40 +1200
  Re: Obfuscated Python hack Chris Angelico <rosuav@gmail.com> - 2014-06-02 23:23 +1000
    Re: Obfuscated Python hack Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-06-02 15:38 +0000
      Re: Obfuscated Python hack Ian Kelly <ian.g.kelly@gmail.com> - 2014-06-02 09:47 -0600
      Re: Obfuscated Python hack Chris Angelico <rosuav@gmail.com> - 2014-06-03 01:55 +1000
      Re: Obfuscated Python hack Chris Angelico <rosuav@gmail.com> - 2014-06-03 01:56 +1000

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