Note:
This module was an implementation detail of the
random module in releases of Python prior to 2.1. It is
no longer used. Please do not use this module directly; use
random instead.

This module implements a Wichmann-Hill pseudo-random number generator
class that is also named whrandom. Instances of the
whrandom class conform to the Random Number Generator
interface described in section . They also offer the
following method, specific to the Wichmann-Hill algorithm:

Initializes the random number generator from the integers x,
y and z. When the module is first imported, the random
number is initialized using values derived from the current time.
If x, y, and z are either omitted or 0, the
seed will be computed from the current system time. If one or two
of the parameters are 0, but not all three, the zero values
are replaced by ones. This causes some apparently different seeds
to be equal, with the corresponding result on the pseudo-random
series produced by the generator.

Initializes the random number generator from the integers x,
y and z. When the module is first imported, the random
number is initialized using values derived from the current time.

When imported, the whrandom module also creates an instance of
the whrandom class, and makes the methods of that instance
available at the module level. Therefore one can write either
N = whrandom.random() or:

generator = whrandom.whrandom()
N = generator.random()

Note that using separate instances of the generator leads to
independent sequences of pseudo-random numbers.