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How to make random numbers in python without the random module

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inuasha
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26 posts since Dec 2011
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I want to be able to generate my own random numbers without using the random module. I want to do this that way I can learn somewhat how to do the big boy code on my own.

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lrh9
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250 posts since Oct 2009
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http://en.wikipedia.org/wiki/Pseudorandom_number_generator

There is even a link to an algorithm with a psuedocode implementation.

Personally, I think you should find something else to work on. I think reimplementing established algorithms will provide little educational value.

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snippsat
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Best way to create one is to not to.

Pseudo-random number generators are a very complex subject, so it's better off to use the implementations produced by the people that have a good understanding of the subject.

Python uses the Mersenne twister as the core generator. It produces 53-bit precision floats and has a period of 2**19937-1.
The underlying implementation in C is both fast and threadsafe.

You can of course look at all code for python.
http://svn.python.org/projects/python/trunk/Modules/_randommodule.c
http://svn.python.org/projects/python/trunk/Lib/random.py

Pitfalls in Random Number Generation

def get_random_number():
    '''Chosen bye a fair dice roll,guaranteed to be random'''
    return 4
Question Answered as of 2 Years Ago by snippsat and lrh9
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