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| References | <20110418105300.S4T3T.1176868.root@web11-winn.ispmail.private.ntl.com> |
|---|---|
| Date | 2011-04-18 19:57 +1000 |
| Subject | Re: An unusual question... |
| From | Chris Angelico <rosuav@gmail.com> |
| Newsgroups | comp.lang.python |
| Message-ID | <mailman.508.1303120623.9059.python-list@python.org> (permalink) |
On Mon, Apr 18, 2011 at 7:53 PM, <wisecracker@tesco.net> wrote: > Talking of nefarious usage... > > I wonder what this would do left unchecked on a current machine and current Python install... > > ### > > global somestring > somestring = " " > > while 1: > #print somestring > somestring = somestring + " " > > ### It'd take a while, but eventually bomb with MemoryError. If instead you double the string's length with "somestring=somestring+somestring", it'll bomb a lot quicker. I know because I tried it. We have an isolation environment in which we'll be allowing our clients to provide Python scripts - which means we have to be sure it'll all be safe. BTW, the point at which it bombs is defined by ulimit/rlimit, unless you fiddle with the memory allocator. See previous thread on the subject. :D Chris Angelico
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Re: An unusual question... Chris Angelico <rosuav@gmail.com> - 2011-04-18 19:57 +1000
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