GNU bug report logs - #52269
[core-updates-frozen] sitecustomize.py does not honor .pth files

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#52269: closed ([core-updates-frozen] sitecustomize.py does
 not honor .pth files)
Date: Fri, 17 Dec 2021 15:03:01 +0000

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Your message dated Fri, 17 Dec 2021 10:02:04 -0500
with message-id <87czlv6zrn.fsf <at> gmail.com>
and subject line Re: bug#52269: [core-updates-frozen] sitecustomize.py does not honor .pth files
has caused the debbugs.gnu.org bug report #52269,
regarding [core-updates-frozen] sitecustomize.py does not honor .pth files
to be marked as done.

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From: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
To: bug-guix <bug-guix <at> gnu.org>
Subject: [core-updates-frozen] Some Python packages relying on .pth are broken
Date: Fri, 03 Dec 2021 21:59:53 -0500

Hello Guix,

This was already something Harmut noted during their review of the
site.py loader (that it should honor .pth files), but at the time I
wasn't aware of a Python package that still made use of that mechanism
and thought it was legacy.

To my dismay it seems to be used by the tool 'pdbpp', which is an
improved pdb (debugger) for Python; using core-updates-frozen I noticed
that it was no longer in use; looking at its installed files I see:

--8<---------------cut here---------------start------------->8---
pdbpp_hijack_pdb.pth
--8<---------------cut here---------------end--------------->8---

So I'm guessing that because the new loader doesn't handle .pth files
its "hijacking" technique doesn't work.

Unfortunately touching this site.py file would causes a massive rebuild
(of the whole Python world).  Hopefully this use of .pth is a rare
occurrence and can be worked around.

Thanks,

Maxim

[Message part 3 (message/rfc822, inline)]

From: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
To: Lars-Dominik Braun <lars <at> 6xq.net>
Cc: 52269-done <at> debbugs.gnu.org
Subject: Re: bug#52269: [core-updates-frozen] sitecustomize.py does not
 honor .pth files
Date: Fri, 17 Dec 2021 10:02:04 -0500

Hi,

I've cherry-picked this commit to the version-1.4.0 branch.  I'll amass
some fixes there and then later have Cuirass build it.

Closing.

Thanks for the review!

Maxim

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