#1099545 hugin-tools: hugin's Python3.12 cache files are not cleared on Python3.13 upgrades

Package:
hugin-tools
Source:
hugin-tools
Description:
panorama photo stitcher - commandline tools
Submitter:
Alexandre Detiste
Date:
2025-03-10 17:24:02 UTC
Severity:
normal
#1099545#5
Date:
2025-03-04 20:26:25 UTC
From:
To:
Dear Maintainer,

I've notice that the upgrade of Python to 3.13
and removal of Python 3.12 will left two Python 3.12 cache files behind
in /usr/share/hugin/data/plugins-templates/__pycache__/

Greetings

Alexandre


root@antec:~# cruft | grep -v debputy
cruft report: mar 04 mar 2025 21:22:45
---- missing: dpkg ----
---- unexplained: / ----
        /usr/share/hugin/data/plugins-templates/__pycache__/dual_use.cpython-312.pyc
        /usr/share/hugin/data/plugins-templates/__pycache__/plugin_skeleton.cpython-312.pyc

end.

root@antec:~# ls /usr/share/hugin/data/plugins-templates/__pycache__/ -l
total 16
-rw-r--r-- 1 root root 2187 21 déc 14:25 dual_use.cpython-312.pyc
-rw-r--r-- 1 root root 2189  3 fév 14:59 dual_use.cpython-313.pyc
-rw-r--r-- 1 root root  571 21 déc 14:25 plugin_skeleton.cpython-312.pyc
-rw-r--r-- 1 root root  573  3 fév 14:59 plugin_skeleton.cpython-313.pyc
#1099545#10
Date:
2025-03-05 17:30:46 UTC
From:
To:
[...]

Hello,

The py-files for both of these are part of hugin-data (a dependency of
hugin-tools). Are the python cache files removed when uninstalling
_this_ package?

cu Andreas
#1099545#15
Date:
2025-03-10 10:32:28 UTC
From:
To:
Hi,

Yes, the pyc files are removed on package removal.

I filled similar bug for deputy

Maybe can Stefano answer help you.

Greetings

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1099543#15
#1099545#20
Date:
2025-03-10 12:23:53 UTC
From:
To:
Hi Alexandre (2025.03.10_10:32:28_+0000)

That message was in the context of debputy, an alternative to
debhhelper.

hugin looks like uses standard package tooling, so you just need to
specify /usr/share/hugin/data/ as a private module path to dh_python3.

Stefano
#1099545#25
Date:
2025-03-10 17:20:10 UTC
From:
To:
[...]

Hello,

thank you for the hand-holding.

Hugin already does point dh_python to the respective subdirectory[1] and
dh_python adds postinst/prerm scripts to hugin*. The cleanup therefore
happens when hugin ins uninstalled or upgraded. Alexandre would like to
have the cleanup unrelated to hugin upgrade on python-3.12-removal.

So this sounds like a feature request for dh-python.

cu Andreas
[1]
    40  override_dh_python3:
    41          dh_python3 -i /usr/share/hugin/data/plugins
    42          dh_python3 -a