28 lines
525 B
Python
28 lines
525 B
Python
from urandom import *
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def randrange(start, stop=None):
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if stop is None:
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stop = start
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start = 0
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upper = stop - start
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bits = 0
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pwr2 = 1
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while upper > pwr2:
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pwr2 <<= 1
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bits += 1
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while True:
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r = getrandbits(bits)
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if r < upper:
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break
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return r + start
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def randint(start, stop):
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return randrange(start, stop + 1)
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def shuffle(seq):
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l = len(seq)
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for i in range(l):
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j = randrange(l)
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seq[i], seq[j] = seq[j], seq[i]
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