From: Ricardo Wurmus <rekado@elephly.net>
To: Marius Bakke <mbakke@fastmail.com>
Cc: 22533@debbugs.gnu.org
Subject: bug#22533: Python bytecode reproducibility
Date: Tue, 06 Mar 2018 14:28:49 +0100 [thread overview]
Message-ID: <87muzlib8u.fsf@elephly.net> (raw)
In-Reply-To: <87h8pu153i.fsf@fastmail.com>
Marius Bakke <mbakke@fastmail.com> writes:
> The only remark I have is: is introducing a new variable necessary?
> SOURCE_DATE_EPOCH implies that the user wants a deterministic build;
> the upstream patch doesn't actually honor it outside of making the
> hashing method deterministic. So, I think it might be enough to just
> test for SOURCE_DATE_EPOCH instead of DETERMINISTIC_BUILD. The former
> is also already set in the build environment.
> However, I just noticed that you unset DETERMINISTIC_BUILD before the
> 'check' phase. Did it break more things?
Yes, it broke a bunch of tests that are all about recompiling files when
they are considered stale.
> I suppose we'll have to set PYTHONHASHSEED somewhere in
> python-build-system as well. Did you check if that makes a difference
> for numpy? Perhaps it's enough to set it if we add an auto-compilation
> step?
Right, I’m going to test this with numpy now. Thanks for the hint!
--
Ricardo
GPG: BCA6 89B6 3655 3801 C3C6 2150 197A 5888 235F ACAC
https://elephly.net
next prev parent reply other threads:[~2018-03-06 13:30 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-02 5:15 bug#22533: Non-determinism in python-3 ".pyc" bytecode Leo Famulari
2016-02-02 8:54 ` Leo Famulari
2016-02-02 20:41 ` Ludovic Courtès
2016-02-04 23:17 ` Leo Famulari
2016-03-29 23:11 ` Cyril Roelandt
2016-03-29 23:13 ` Cyril Roelandt
2016-04-06 8:29 ` Ludovic Courtès
2017-05-26 13:41 ` bug#22533: Python bytecode reproducibility Marius Bakke
2018-03-03 22:37 ` Ricardo Wurmus
2018-03-04 9:21 ` Gábor Boskovits
2018-03-04 12:46 ` Ricardo Wurmus
2018-03-04 15:30 ` Gábor Boskovits
2018-03-04 19:18 ` Ricardo Wurmus
2018-03-05 0:02 ` Ricardo Wurmus
2018-03-05 0:05 ` Ricardo Wurmus
2018-03-05 15:36 ` Gábor Boskovits
2018-03-05 20:33 ` Gábor Boskovits
2018-03-05 21:46 ` Ricardo Wurmus
2018-03-05 22:02 ` Ricardo Wurmus
2018-03-05 22:06 ` Ricardo Wurmus
2018-03-05 23:21 ` Marius Bakke
2018-03-06 13:28 ` Ricardo Wurmus [this message]
2018-03-06 14:43 ` Ricardo Wurmus
2018-03-06 14:57 ` Gábor Boskovits
2018-03-08 10:39 ` Gábor Boskovits
2019-01-14 13:40 ` Ricardo Wurmus
2019-02-03 21:22 ` Ricardo Wurmus
2019-02-04 22:39 ` Ludovic Courtès
2018-03-05 9:25 ` Ludovic Courtès
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