Author lemburg
Recipients Arfrever, Huzaifa.Sidhpurwala, Mark.Shannon, PaulMcMillan, Zhiping.Deng, alex, barry, benjamin.peterson, christian.heimes, dmalcolm, eric.araujo, georg.brandl, gvanrossum, jcea, lemburg, pitrou, terry.reedy, v+python, vstinner
Date 2012-01-06.17:59:39
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Content
Here's an example of hash-attack.patch finding an on-purpose
programming error (hashing all objects to the same value):

http://stackoverflow.com/questions/4865325/counting-collisions-in-a-python-dictionary
(see the second example on the page for @Winston Ewert's solution)

With the patch you get:

Traceback (most recent call last):
  File "testcollisons.py", line 20, in <module>
    d[o] = 1
KeyError: 'too many hash collisions'
History
Date User Action Args
2012-01-06 17:59:40lemburgsetrecipients: + lemburg, gvanrossum, barry, georg.brandl, terry.reedy, jcea, pitrou, vstinner, christian.heimes, benjamin.peterson, eric.araujo, Arfrever, v+python, alex, dmalcolm, Mark.Shannon, Zhiping.Deng, Huzaifa.Sidhpurwala, PaulMcMillan
2012-01-06 17:59:39lemburglinkissue13703 messages
2012-01-06 17:59:39lemburgcreate