[Bug 2077685] Re: python3-apt_2.7.7ubuntu2 uninstallable on armhf

[Chris Halse Rogers]

Ok. So, as far as I can tell, python3-apt on armhf *and only* on armhf
gets a versioned dependency on libapt-pkg6.0t64 (>=
$THE_VERSION_IT_BUILT_AGAINST). It's unclear to me what is causing this
behaviour; the symbols file for that library in the apt source looks
unremarkable, and there's no weird architecture-specific wrangling that
I can see in the rules.

I have verified that a no-change rebuild of python-apt in an archive
containing noble-updates but *not* noble-proposed will generate a
package that has correct dependencies on armhf. Thus, we should be able
to build in a PPA and binary-copy the result to noble-proposed (and then
release into -updates from there).

I'm aware that there are special considerations around building a
package in a PPA to be binary-copied into the main archive, but I'm not
familiar with setting up a suitable build archive. I shall coordinate
with others on the SRU/Archive teams to get this happening.

** Changed in: python-apt (Ubuntu Noble)
       Status: Triaged => In Progress

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https://bugs.launchpad.net/bugs/2077685

Title:
  python3-apt_2.7.7ubuntu2 uninstallable on armhf

Status in python-apt package in Ubuntu:
  Fix Released
Status in python-apt source package in Noble:
  In Progress

Bug description:
  The python-apt 2.7.7ubuntu2 update has a versioned dependency on
  libapt-pkg6.0t64 (>= 2.8.1) (on armhf only). Presumably there's an
  armhf-only symbols difference resulting in the armhf package (and
  *only* the armhf package - none of i386, amd64, ppc64el, s390x, or
  riscv64 are affected) picking up this tighter dependency.

  The version of apt which could satisfy this is still in -proposed:
  ```
   apt | 2.7.14build2    | noble           | source, amd64, arm64, armhf, i386, ppc64el, riscv64, s390x
   apt | 2.8.2           | noble-proposed  | source, amd64, arm64, armhf, i386, ppc64el, riscv64, s390x
  ```

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