Author tim.peters
Recipients berker.peksag, martin.panter, rhettinger, serhiy.storchaka, tim.peters, vstinner
Date 2016-10-21.01:50:21
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Message-id <1477014622.77.0.30995255318.issue26163@psf.upfronthosting.co.za>
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I think Raymond will have to chime in.  I assume this is due to the `letter_range` portion of the test suffering hash randomization dealing it a bad hand - but the underlying string hash is "supposed to be" strong regardless of seed.  The

    self.assertGreater(4*u, t)
AssertionError: 124 not greater than 128

failure says 128 distinct sets hashed to only u = 124/4 = 31 distinct values across their hashes' last 7 bits, and that's worth complaining about.  It's way too many collisions.

It _may_ be a flaw in the set hash, or in the string hash, or just plain bad luck, but there's really no way to know which without digging into details.
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Date User Action Args
2016-10-21 01:50:22tim.peterssetrecipients: + tim.peters, rhettinger, vstinner, berker.peksag, martin.panter, serhiy.storchaka
2016-10-21 01:50:22tim.peterssetmessageid: <1477014622.77.0.30995255318.issue26163@psf.upfronthosting.co.za>
2016-10-21 01:50:22tim.peterslinkissue26163 messages
2016-10-21 01:50:21tim.peterscreate