ModuleNotFoundError: No module named 'dataclasses'

[realdognose]

When trying to install wattpilotshell with Python 3.8.18, it fails with the following error:

  Installing build dependencies ... error
  ERROR: Command errored out with exit status 2:
   command: /usr/bin/python3 /usr/lib/python3.8/site-packages/pip install --ignore-installed --no-user --prefix /var/volatile/tmp/pip-build-env-__rp8ga4/overlay --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- 'pyyaml>=5.4.1' 'setuptools>=42' wheel paho-mqtt 'cmd2>=2.4.1'
       cwd: None
  Complete output (58 lines):
  Collecting pyyaml>=5.4.1
    Using cached PyYAML-6.0.1.tar.gz (125 kB)
    Installing build dependencies: started
    Installing build dependencies: still running...
    Installing build dependencies: finished with status 'done'
    Getting requirements to build wheel: started
    Getting requirements to build wheel: finished with status 'done'
  ERROR: Exception:
  Traceback (most recent call last):
    File "/usr/lib/python3.8/site-packages/pip/_internal/cli/base_command.py", line 186, in _main
      status = self.run(options, args)
    File "/usr/lib/python3.8/site-packages/pip/_internal/commands/install.py", line 331, in run
      resolver.resolve(requirement_set)
    File "/usr/lib/python3.8/site-packages/pip/_internal/legacy_resolve.py", line 177, in resolve
      discovered_reqs.extend(self._resolve_one(requirement_set, req))
    File "/usr/lib/python3.8/site-packages/pip/_internal/legacy_resolve.py", line 333, in _resolve_one
      abstract_dist = self._get_abstract_dist_for(req_to_install)
    File "/usr/lib/python3.8/site-packages/pip/_internal/legacy_resolve.py", line 282, in _get_abstract_dist_for
      abstract_dist = self.preparer.prepare_linked_requirement(req)
    File "/usr/lib/python3.8/site-packages/pip/_internal/operations/prepare.py", line 515, in prepare_linked_requirement
      abstract_dist = _get_prepared_distribution(
    File "/usr/lib/python3.8/site-packages/pip/_internal/operations/prepare.py", line 95, in _get_prepared_distribution
      abstract_dist.prepare_distribution_metadata(finder, build_isolation)
    File "/usr/lib/python3.8/site-packages/pip/_internal/distributions/sdist.py", line 38, in prepare_distribution_metadata
      self._setup_isolation(finder)
    File "/usr/lib/python3.8/site-packages/pip/_internal/distributions/sdist.py", line 96, in _setup_isolation
      reqs = backend.get_requires_for_build_wheel()
    File "/usr/lib/python3.8/site-packages/pip/_vendor/pep517/wrappers.py", line 151, in get_requires_for_build_wheel
      return self._call_hook('get_requires_for_build_wheel', {
    File "/usr/lib/python3.8/site-packages/pip/_vendor/pep517/wrappers.py", line 255, in _call_hook
      raise BackendUnavailable(data.get('traceback', ''))
  pip._vendor.pep517.wrappers.BackendUnavailable: Traceback (most recent call last):
    File "/usr/lib/python3.8/site-packages/pip/_vendor/pep517/_in_process.py", line 63, in _build_backend
      obj = import_module(mod_path)
    File "/usr/lib/python3.8/importlib/__init__.py", line 127, in import_module
      return _bootstrap._gcd_import(name[level:], package, level)
    File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
    File "<frozen importlib._bootstrap>", line 991, in _find_and_load
    File "<frozen importlib._bootstrap>", line 961, in _find_and_load_unlocked
    File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
    File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
    File "<frozen importlib._bootstrap>", line 991, in _find_and_load
    File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
    File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
    File "<frozen importlib._bootstrap_external>", line 843, in exec_module
    File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
    File "/var/volatile/tmp/pip-build-env-24jw_qok/overlay/lib/python3.8/site-packages/setuptools/__init__.py", line 17, in <module>
      from .dist import Distribution
    File "/var/volatile/tmp/pip-build-env-24jw_qok/overlay/lib/python3.8/site-packages/setuptools/dist.py", line 27, in <module>
      from .extern.packaging.markers import InvalidMarker, Marker
    File "/var/volatile/tmp/pip-build-env-24jw_qok/overlay/lib/python3.8/site-packages/setuptools/_vendor/packaging/markers.py", line 11, in <module>
      from ._parser import (
    File "/var/volatile/tmp/pip-build-env-24jw_qok/overlay/lib/python3.8/site-packages/setuptools/_vendor/packaging/_parser.py", line 10, in <module>
      from ._tokenizer import DEFAULT_RULES, Tokenizer
    File "/var/volatile/tmp/pip-build-env-24jw_qok/overlay/lib/python3.8/site-packages/setuptools/_vendor/packaging/_tokenizer.py", line 3, in <module>
      from dataclasses import dataclass
  ModuleNotFoundError: No module named 'dataclasses'

  ----------------------------------------
ERROR: Command errored out with exit status 2: /usr/bin/python3 /usr/lib/python3.8/site-packages/pip install --ignore-installed --no-user --prefix /var/volatile/tmp/pip-build-env-__rp8ga4/overlay --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- 'pyyaml>=5.4.1' 'setuptools>=42' wheel paho-mqtt 'cmd2>=2.4.1' Check the logs for full command output.

Any idea? dataclasses should be default starting with python 3.7, so I can only assume that the error message is missleading?