TWIW, on Twitter, Ian Bicking just came up with a half-solution. I figured out the other half. I guess you own Ian drinks and me dinner. :-) $ python Python 2.5.3a0 (release25-maint:64494, Jun 23 2008, 19:17:09) [GCC 4.0.3 (Ubuntu 4.0.3-1ubuntu5)] on linux2 Type "help", "copyright", "credits" or "license" for more information.
from safelite import FileReader class S(str): ... def __eq__(self, o): print o; return 'r' == o ... f = FileReader('w00t', S('w')) r f.close()
$ ls -l w00t -rw-r----- 1 guido eng 0 Feb 23 14:50 w00t $
On Mon, Feb 23, 2009 at 2:41 PM, tav <tav@espians.com> wrote:
I take it back, we need to find all the trivial ones too.
Agreed!
BTW Tav, you ought to create a small website for this challenge. A blog post or wiki page would suffice.
Done.
http://tav.espians.com/a-challenge-to-break-python-security.html
Please blog/retweet and of course, try the challenge yourselves =)
-- love, tav
plex:espians/tav | tav@espians.com | +44 (0) 7809 569 369 http://tav.espians.com | http://twitter.com/tav | skype:tavespian
-- --Guido van Rossum (home page: http://www.python.org/~guido/)