does not build on bookworm due to recent update to PyGobject

[kalebris]

When using the sonic-buildimage I get error message:

++ basename target/python-wheels/bookworm/sonic_host_services-1.0-py3-none-any.whl
+ SONIC_HOST_SERVICES_PY3_WHEEL_NAME=sonic_host_services-1.0-py3-none-any.whl
+ sudo cp target/python-wheels/bookworm/sonic_host_services-1.0-py3-none-any.whl ./fsroot-vs/sonic_host_services-1.0-py3-none-any.whl
+ sudo https_proxy= LANG=C chroot ./fsroot-vs pip3 install sonic_host_services-1.0-py3-none-any.whl
Processing /sonic_host_services-1.0-py3-none-any.whl
Requirement already satisfied: Jinja2>=2.10 in /usr/lib/python3/dist-packages (from sonic-host-services==1.0) (3.1.2)
Collecting PyGObject
  Downloading pygobject-3.52.3.tar.gz (1.2 MB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 1.2/1.2 MB 4.3 MB/s eta 0:00:00
  Installing build dependencies: started
  Installing build dependencies: finished with status 'done'
  Getting requirements to build wheel: started
  Getting requirements to build wheel: finished with status 'done'
  Installing backend dependencies: started
  Installing backend dependencies: finished with status 'done'
  Preparing metadata (pyproject.toml): started
  Preparing metadata (pyproject.toml): finished with status 'error'
  error: subprocess-exited-with-error

  × Preparing metadata (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> [24 lines of output]
      + meson setup /tmp/pip-install-7z8tehmd/pygobject_36a2d29d6f334c29957433c40baf9754 /tmp/pip-install-7z8tehmd/pygobject_36a2d29d6f334c29957433c40baf9754/.mesonpy-i5csgzxc -Dbuildtype=release -Db_ndebug=if-release -Db_vscrt=md -Dtests=false -Dwheel=true --wrap-mode=nofallback --native-file=/tmp/pip-install-7z8tehmd/pygobject_36a2d29d6f334c29957433c40baf9754/.mesonpy-i5csgzxc/meson-python-native-file.ini
      The Meson build system
      Version: 1.8.0
      Source dir: /tmp/pip-install-7z8tehmd/pygobject_36a2d29d6f334c29957433c40baf9754
      Build dir: /tmp/pip-install-7z8tehmd/pygobject_36a2d29d6f334c29957433c40baf9754/.mesonpy-i5csgzxc
      Build type: native build
      Project name: pygobject
      Project version: 3.52.3
      C compiler for the host machine: cc (gcc 12.2.0 "cc (Debian 12.2.0-14) 12.2.0")
      C linker for the host machine: cc ld.bfd 2.40
      Host machine cpu family: x86_64
      Host machine cpu: x86_64
      Program python3 found: YES (/usr/bin/python3)
      Found pkg-config: YES (/usr/bin/pkg-config) 1.8.1
      Run-time dependency python found: YES 3.11
      Did not find CMake 'cmake'
      Found CMake: NO
      Run-time dependency girepository-2.0 found: NO (tried pkgconfig and cmake)
      Not looking for a fallback subproject for the dependency girepository-2.0 because:
      Use of fallback dependencies is disabled.

      ../meson.build:31:9: ERROR: Dependency 'girepository-2.0' is required but not found.

      A full log can be found at /tmp/pip-install-7z8tehmd/pygobject_36a2d29d6f334c29957433c40baf9754/.mesonpy-i5csgzxc/meson-logs/meson-log.txt
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed

× Encountered error while generating package metadata.
╰─> See above for output.

note: This is an issue with the package mentioned above, not pip.
hint: See above for details.

After some digging it seems the girpository-2.0 isn't available on bookworm. I have locally fixed this problem by the diff below:

--- ./src/sonic-host-services/setup.py  2025-05-05 12:59:06.826212319 +0000
+++ new.py      2025-05-05 12:58:52.475721684 +0000
@@ -47,7 +47,7 @@
         'dbus-python',
         'systemd-python',
         'Jinja2>=2.10',
-        'PyGObject',
+        'PyGObject==3.50.0',
         'pycairo==1.26.1',
         'psutil'
     ] + sonic_dependencies,

Given that this is a fairly recent update to PyGObject, thought fixing to previous version is acceptable.