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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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.
Date User Action Args
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