Make a unique filesystem path, without creating the file

Mark Lawrence breamoreboy at yahoo.co.uk
Tue Feb 23 03:09:35 EST 2016


On 23/02/2016 02:27, Paul Rubin wrote:
> Steven D'Aprano <steve at pearwood.info> writes:
>> https://www.python.org/dev/peps/pep-0506/
>
> I didn't know about this!  The discussion was all on mailing lists?

https://mail.python.org/pipermail/python-ideas/2015-September/036333.html then 
http://www.gossamer-threads.com/lists/python/dev/1223780

>
> A few things I suggest changing:
>
>    1) the default system RNG for Linux should be getrandom(2) on kernels
>    that support it (3.17 and later).
>
>    2) Some effort should be directed at simulating getrandom's behaviour
>    on kernels that don't have it, using the /dev/random entropy estimator
>    and the /dev/urandom interface.  I.e. it should block if the system
>    hasn't seen enough entropy to get the CSPRNG started securely, and
>    never block after that.
>
>    3) The default token length should be long enough to not have to "change
>    in the future".  If the user wants a shorter token, they ask for that,
>    or can truncate a longer one that they receive from the default.
>
> There are a few other choices in the PEP whose benefit is unclear to me,
> but they aren't harmful, and I guess the decisions have already been
> made.
>

The PEP status is draft so is subject to change.

-- 
My fellow Pythonistas, ask not what our language can do for you, ask
what you can do for our language.

Mark Lawrence



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