The whrandom module

This module provides a pseudo-random number generator (based on an algorithm by Wichmann & Hill, 1982). Unless you need several generators that do not share internal state (for example, in a multi-threaded application), it’s better to use the functions in the random module instead.

Example: Using the whrandom module

# File: whrandom-example-1.py

import whrandom

# same as random
print whrandom.random()
print whrandom.choice([1, 2, 3, 5, 9])
print whrandom.uniform(10, 20)
print whrandom.randint(100, 1000)

$ python whrandom-example-1.py
0.113412062346
1
16.8778954689
799

To create multiple generators, create instances of the whrandom class:

Example: Using the whrandom module to create multiple random generators

# File: whrandom-example-2.py

import whrandom

# initialize all generators with the same seed
rand1 = whrandom.whrandom(4,7,11)
rand2 = whrandom.whrandom(4,7,11)
rand3 = whrandom.whrandom(4,7,11)

for i in range(5):
    print rand1.random(), rand2.random(), rand3.random()

$ python whrandom-example-2.py
0.123993532536 0.123993532536 0.123993532536
0.180951499518 0.180951499518 0.180951499518
0.291924111809 0.291924111809 0.291924111809
0.952048889363 0.952048889363 0.952048889363
0.969794283643 0.969794283643 0.969794283643

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