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Re: Random and fork

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Thank you for the answers! It was much simpler than I thought.

On Wednesday, 6 February 2013 17:49:06 UTC+1, Alain Ketterlin  wrote:
> Julien Le Goff <julien.legoff@gmail.com> writes:
> 
> 
> 
> > Today I came accross a behaviour I did not expect in python (I am
> 
> > using 2.7). In my program, random.random() always seemed to return the
> 
> > same number; it turned out to be related to the fact that I was using
> 
> > os.fork.
> 
> 
> 
> The random number generator is initialized once, when the module is
> 
> first imported. Forking simply duplicates the process in its current
> 
> state, so no reinitilization occurs, both (or all) processes' generators
> 
> are in the same state, and therefore generate the same sequence.
> 
> 
> 
> -- Alain.

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Random and fork Julien Le Goff <julien.legoff@gmail.com> - 2013-02-06 08:28 -0800
  Re: Random and fork Peter Otten <__peter__@web.de> - 2013-02-06 17:47 +0100
  Re: Random and fork Alain Ketterlin <alain@dpt-info.u-strasbg.fr> - 2013-02-06 17:49 +0100
    Re: Random and fork Julien Le Goff <julien.legoff@gmail.com> - 2013-02-07 01:41 -0800
  Re: Random and fork Stephane Wirtel <stephane@wirtel.be> - 2013-02-07 14:29 +0100

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