GNU bug report logs - #66351
Python build is not reproducible

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Tomas Volf <~@wolfsden.cz>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#66351: closed (Python build is not reproducible)
Date: Fri, 12 Jan 2024 00:44:02 +0000

[Message part 1 (text/plain, inline)]

Your message dated Fri, 12 Jan 2024 01:43:24 +0100
with message-id <ZaCLLPRKg-tBbkBj <at> ws>
and subject line Re: Python build is not reproducible
has caused the debbugs.gnu.org bug report #66351,
regarding Python build is not reproducible
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


-- 
66351: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=66351
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: wolf <wolf <at> wolfsden.cz>
To: bug-guix <at> gnu.org
Subject: Python build is not reproducible
Date: Wed, 4 Oct 2023 23:48:30 +0200

[Message part 3 (text/plain, inline)]

Hi,

python package currently does not build in a reproducible way:

    /gnu/store/dy3xh053ahkhrp2jamggq8cpsyvp8mg0-python-3.10.7 contents differ:
      local hash: 0iw988a0573bc7ag1c3da23cvcl0xp166l1zazi31i9cf1faprmh
      https://ci.guix.gnu.org/nar/lzip/dy3xh053ahkhrp2jamggq8cpsyvp8mg0-python-3.10.7: 0iw988a0573bc7ag1c3da23cvcl0xp166l1zazi31i9cf1faprmh
      https://bordeaux.guix.gnu.org/nar/lzip/dy3xh053ahkhrp2jamggq8cpsyvp8mg0-python-3.10.7: 08g7gnv6852xwjw21w2nkd662xh2h8pvcryczsxcppdqaskmxy43
      differing files:
        /lib/python3.10/multiprocessing/__pycache__/connection.cpython-310.opt-1.pyc
        /lib/python3.10/multiprocessing/__pycache__/connection.cpython-310.opt-2.pyc
        /lib/python3.10/multiprocessing/__pycache__/connection.cpython-310.pyc
        /lib/python3.10/site-packages/pip/_vendor/rich/__pycache__/_windows.cpython-310.opt-1.pyc
        /lib/python3.10/site-packages/pip/_vendor/rich/__pycache__/_windows.cpython-310.opt-2.pyc
        /lib/python3.10/site-packages/pip/_vendor/rich/__pycache__/_windows.cpython-310.pyc
        /lib/python3.10/test/support/__pycache__/os_helper.cpython-310.opt-1.pyc
        /lib/python3.10/test/support/__pycache__/os_helper.cpython-310.opt-2.pyc
        /lib/python3.10/test/support/__pycache__/os_helper.cpython-310.pyc
    
    1 store items were analyzed:
      - 0 (0.0%) were identical
      - 1 (100.0%) differed
      - 0 (0.0%) were inconclusive

It however *is* reproducible on a single machine, --rounds=30 finished
successfully.  Possible cause seems to be described in this opensuse issue:

    https://bugzilla.opensuse.org/show_bug.cgi?id=1049186

The patch linked seems fairly simple:

    https://build.opensuse.org/request/show/687278#revision_details_6

As far as I can tell, we currently do not carry patch like this and in 3.10.7 it
is not present upstream.

Have a nice day,
W.

-- 
There are only two hard things in Computer Science:
cache invalidation, naming things and off-by-one errors.

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[Message part 5 (message/rfc822, inline)]

From: Tomas Volf <~@wolfsden.cz>
To: 66351-close <at> debbugs.gnu.org
Subject: Re: Python build is not reproducible
Date: Fri, 12 Jan 2024 01:43:24 +0100

[Message part 6 (text/plain, inline)]

Superseded by #68394.

-- 
There are only two hard things in Computer Science:
cache invalidation, naming things and off-by-one errors.

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