Python 3.14 Transition

[seasons]

If you try to dist-upgrade and have packages to be removed, it could be because of:
https://release.debian.org/transitions/html/python3.14-default.html
Be careful and keep on siductioning.

[DeepDayze]

As Python is a major part of many packages it may well take time before they all are rebuilt against the new Python release so it's wise to be patient as well.

[eriefisher]

Nothing to be removed yet but many being held back. Give it a few days to catch up.

[pit]

For me, the current Python 3.14.6 transition in sid is preventing

• borgbackup
• obs-studio and
• picard

from being upgraded.
apt keeps these packages back because they still depend on python3 (< 3.14).
Example:

$ apt show borgbackup | grep Depends
Depends: python3 (<< 3.14), python3 (>= 3.13~), ...

So this appears to be a temporary issue during the Python 3.14 transition in unstable, and apt is behaving correctly by not removing these packages.

[Fellfrosch]

The transition brings some minor problems with it. Solaar is updated, but depends on some python packages which are held back, so it refuses to start.
I as well lost temporarily my keyboard. Even though I'm not sure if the transition is the culprit. I think it was a problem caused by Solaar not able to run. I had to delete my keyboard config files and it worked again after that. 

[Isegrimm666]

For me, the current Python 3.14.6 transition in sid is preventing

• borgbackup
• obs-studio and
• picard

from being upgraded.
apt keeps these packages back because they still depend on python3 (< 3.14).
Example:

$ apt show borgbackup | grep Depends
Depends: python3 (<< 3.14), python3 (>= 3.13~), ...

So this appears to be a temporary issue during the Python 3.14 transition in unstable, and apt is behaving correctly by not removing these packages.

These packages (and others too) are also being held back on my system ... including 'libreoffice', amongst others.

I then ran:

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doas apt update && doas apt install libreoffice
... and all the held-back packages were then installed.

----------------------------

Bei mir werden diese Pakete (und auch andere) ebenfalls zurückgehalten ... unter anderem auch 'libreoffice'.

Ich habe dann ein:

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doas apt update && doas apt install libreoffice
... durchgeführt und alle zurückgehaltenen Pakete wurden dann installiert.

[harley-peter]

If I try to install libreoffice the system want to remove some packages:

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ENTFERNE:
  python3-lib2to3  virtualbox  virtualbox-ext-pack  virtualbox-qt
So I think it is better to wait some days

[dibl]

These two are OK to install now:

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don@cville:~$ sudo apt policy libreoffice
libreoffice:
  Installed: 4:26.2.4.2-2
  Candidate: 4:26.2.4.2-2
  Version table:
 *** 4:26.2.4.2-2 500
        500 https://deb.debian.org/debian unstable/main amd64 Packages
        100 /var/lib/dpkg/status
don@cville:~$ sudo apt policy python3
python3:
  Installed: 3.14.6-1
  Candidate: 3.14.6-1
  Version table:
 *** 3.14.6-1 500
        500 https://deb.debian.org/debian unstable/main amd64 Packages
But vbox is still a problem:

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don@cville:~$ sudo apt -s install virtualbox virtualbox-qt

Solving dependencies... Error!
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

Unsatisfied dependencies:
 virtualbox : Depends: virtualbox-dkms (>= 7.2.8-dfsg-1) but it is not going to be installed or
                      virtualbox-source (>= 7.2.8-dfsg-1) but it is not going to be installed or
                      virtualbox-modules
              Depends: python3 (< 3.14) but 3.14.6-1 is to be installed
              Depends: libgsoap-2.8.139 (>= 2.8.139) but it is not going to be installed
              Depends: liblzf1 (>= 1.5) but it is not going to be installed
 virtualbox-qt : Depends: libqt6help6 (>= 6.6.0) but it is not going to be installed
                Depends: libqt6statemachine6 (>= 6.6.1) but it is not going to be installed
Error: Unable to satisfy dependencies. Reached two conflicting assignments:
  1. virtualbox:amd64=7.2.8-dfsg-1 is selected for install
  2. virtualbox:amd64 Depends python3 (< 3.14)
      but none of the choices are installable:
      [no choices]

[Teriarch]

@harley-peter

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> python3-lib2to3  virtualbox  virtualbox-ext-pack  virtualbox-qt
python2-lib2to3:
What do you need it for? Last version is for bookworm python3.11,
no longer part of Debian sid.

virtualbox &Co.:
You can trick the package manager into thinking you have a newer version, like so
(Debian virtualbox version  7.2.8-dfsg-1 is perfectly fine with python3.14, the Debian
maintainers are only overly accurate). Look for the following lines in /var/lib/dpkg/status
(after backup):

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Package: virtualbox
Status: install ok installed
Priority: optional
Section: contrib/misc
Installed-Size: 151566
Maintainer: Debian Virtualbox Team <team+debian-virtualbox@tracker.debian.org>
Architecture: amd64
Version: 7.2.8-dfsg-1
--
Package: virtualbox-qt
Status: install ok installed
Priority: optional
Section: contrib/misc
Installed-Size: 54592
Maintainer: Debian Virtualbox Team <team+debian-virtualbox@tracker.debian.org>
Architecture: amd64
Source: virtualbox
Version: 7.2.8-dfsg-1
Replaces: virtualbox (<< 4.1.6-dfsg-2~)
Depends: virtualbox (= 7.2.8-dfsg-1), libc6 (>= 2.34), ,..
Simply replace all those lines (and only those, no other lines in  file
/var/lib/dpkg/status) containing string "7.2.8-dfsg-1" by according
lines containing string "7.2.8-dfsg-1b" instead. Finally search for line

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Depends: iproute2, procps, virtualbox-dkms (>= 7.2.8-dfsg-1) | virtualbox-source (>= 7.2.8-dfsg-1) | virtualbox-modules, systemd | systemd-standalone-sysusers | systemd-sysusers, python3 (<< 3.14), ...

and only replace string "python3 (<< 3.14)" by "python3 (<< 3.15)" in that line.
Now you are good to go for the transition. But if that's all too complicated, simply wait
for the official virtualbox update.

[harley-peter]

@teriarch:
I don't know for what the package python3-lib2to3 is necessary. If I understand you right I can uninstall the package.

For virtualbox there is no need to hurry, I can wait some days. Thanks!

[Teriarch]

@harley-peter
> I don't know for what the package python3-lib2to3 is necessary.
> If I understand you right I can uninstall the package.

It once was needed for the transition python2 -> python3, IIRC.
So it's outdated by years. Try a:

$ sudo apt-get -s remove python3-lib2to3

and see, what gives. If nothing else accompanies its exit, get rid of
it right now.

> For virtualbox there is no need to hurry, I can wait some days. Thanks!

That's a wise decision. The suggestion was not for the faint of heart.
If you mess with the package manager the wrong way, you break your system;
no questions asked.

And for the rest of the flock: "You have been warned!"