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and the .seed() and .whseed() methods failed to reset it. In other words, setting the seed didn't completely determine the sequence of results produced by random.gauss(). It does now. Programs repeatedly mixing calls to a seed method with calls to gauss() may see different results now. Bugfix candidate (random.gauss() has always been broken in this way), despite that it may change results.
19 lines
550 B
Python
19 lines
550 B
Python
import test_support
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import random
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# Ensure that the seed() method initializes all the hidden state. In
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# particular, through 2.2.1 it failed to reset a piece of state used by
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# (and only by) the .gauss() method.
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for seed in 1, 12, 123, 1234, 12345, 123456, 654321:
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for seeder in random.seed, random.whseed:
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seeder(seed)
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x1 = random.random()
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y1 = random.gauss(0, 1)
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seeder(seed)
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x2 = random.random()
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y2 = random.gauss(0, 1)
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test_support.vereq(x1, x2)
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test_support.vereq(y1, y2)
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