Question

How to multiple simultaneous generate random numbers in Python

Answer 1

import random

r1 = random.Random()
r2 = random.Random()

for i in range(10):
    print('%04.3f  %04.3f' % (r1.random(), r2.random()))


'''
run:

0.823  0.752
0.602  0.275
0.899  0.777
0.939  0.910
0.570  0.925
0.907  0.573
0.055  0.646
0.897  0.798
0.312  0.277
0.969  0.646

'''

 

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Answer 2

import random
import time

seed = time.time()
r1 = random.Random(seed)
r2 = random.Random(seed)

''' same numbers '''
for i in range(10):
    print('%04.3f  %04.3f' % (r1.random(), r2.random()))


'''
run:

0.946  0.946
0.462  0.462
0.580  0.580
0.247  0.247
0.805  0.805
0.371  0.371
0.935  0.935
0.766  0.766
0.424  0.424
0.090  0.090

'''

 

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Answer 3

import random
import time

seed = time.time()
r1 = random.SystemRandom(seed)
r2 = random.SystemRandom(seed)

''' different numbers '''
for i in range(10):
    print('%04.3f  %04.3f' % (r1.random(), r2.random()))


'''
run:

0.230  0.241
0.581  0.854
0.890  0.481
0.362  0.796
0.311  0.165
0.707  0.574
0.012  0.044
0.237  0.068
0.701  0.115
0.728  0.561

'''

 

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