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bpo-31478: Fix an assertion failure in random.seed() in case a seed has a bad __abs__() method. (#3596)

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Oren Milman 2017-09-28 10:50:01 +03:00 • committed by Serhiy Storchaka
parent db50ba7c72
commit d780b2d588
3 changed files with 18 additions and 2 deletions
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11
Lib/test/test_random.py
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@ -430,6 +430,17 @@ class MersenneTwister_TestBasicOps(TestBasicOps, unittest.TestCase):
['0x1.b0580f98a7dbep-1', '0x1.84129978f9c1ap-1',
'0x1.aeaa51052e978p-2', '0x1.092178fb945a6p-2'])
def test_bug_31478(self):
# There shouldn't be an assertion failure in _random.Random.seed() in
# case the argument has a bad __abs__() method.
class BadInt(int):
def __abs__(self):
return None
try:
self.gen.seed(BadInt())
except TypeError:
pass
def test_bug_31482(self):
# Verify that version 1 seeds are unaffected by hash randomization
# when the seeds are expressed as bytes rather than strings.