see https://ci.debian.net/packages/l/laniakea/testing/amd64/75733819/

[...]
  96s 3/5 linters - Laniakea:mypy   FAIL            11.48s   exit status 1
  96s ――――――――――――――――――――――――――――――――――――― ✀
―――――――――――――――――――――――――――――――――――――
  96s stdout:
  96s Found 4 errors in 2 files (checked 153 source files)
  96s stderr:
  96s src/debcheck/dose.py:34: error: Unused "type: ignore" comment
[unused-ignore]
  96s         @concurrent.thread  # type: ignore[arg-type]
  96s         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  96s src/spears/spearsengine.py:140: error: Unused "type: ignore" comment
  96s [unused-ignore]
  96s         @concurrent.thread  # type: ignore[arg-type]
  96s         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  96s src/spears/spearsengine.py:261: error: Unused "type: ignore" comment
  96s [unused-ignore]
  96s             srcmerge_future =
self._write_merged_dists_data_for(session, m...
  96s
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~...
  96s src/spears/spearsengine.py:262: error: Unused "type: ignore" comment
  96s [unused-ignore]
  96s             dstmerge_future =
self._write_merged_dists_data_for(session, m...
  96s
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~...
  96s
――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――
  96s
131s 2/5 linters - Laniakea:pylint OK              46.28s
131s
131s Summary of Failures:
131s
131s 3/5 linters - Laniakea:mypy   FAIL            11.48s   exit status 1
131s
131s Ok:                4
131s Fail:              1
131s
131s Full log written to
/tmp/autopkgtest.3bbRAa/build.7jw/src/build/meson-logs/testlog.txt

user debian-python@lists.debian.org
usertags 1148369 python3.15
retitle 1148369 laniakea: FTBFS with new python-pebble
thanks

Hi!

While rebuilding the python related packages against the Python 3.15 version we
ran into this FTBFS:
https://debusine.debian.net/debian/r-python-python3.15/artifact/4856287/

As the previous message had some formatting sadness, here's the error from that
log:

3/5 linters - Laniakea:mypy   FAIL            10.16s   exit status 1
――――――――――――――――――――――――――――――――――――― ✀  ―――――――――――――――――――――――――――――――――――――
stdout:
Found 4 errors in 2 files (checked 153 source files)
stderr:
src/debcheck/dose.py:34: error: Unused "type: ignore" comment  [unused-ignore]
        @concurrent.thread  # type: ignore[arg-type]
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/spears/spearsengine.py:140: error: Unused "type: ignore" comment
[unused-ignore]
        @concurrent.thread  # type: ignore[arg-type]
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/spears/spearsengine.py:261: error: Unused "type: ignore" comment
[unused-ignore]
            srcmerge_future = self._write_merged_dists_data_for(session, m...
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~...
src/spears/spearsengine.py:262: error: Unused "type: ignore" comment
[unused-ignore]
            dstmerge_future = self._write_merged_dists_data_for(session, m...
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~...
――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――

Please look into this issue to get this package back into a healthy state.