typing check started to fail: error: No overload variant of "PrivateAttr" matches argument type "None" #1537
Description
originally triggered in
❯ tox -e typing
.pkg: _optional_hooks> python /usr/lib/python3/dist-packages/pyproject_api/_backend.py True setuptools.build_meta
.pkg: get_requires_for_build_sdist> python /usr/lib/python3/dist-packages/pyproject_api/_backend.py True setuptools.build_meta
.pkg: get_requires_for_build_wheel> python /usr/lib/python3/dist-packages/pyproject_api/_backend.py True setuptools.build_meta
.pkg: prepare_metadata_for_build_wheel> python /usr/lib/python3/dist-packages/pyproject_api/_backend.py True setuptools.build_meta
.pkg: build_sdist> python /usr/lib/python3/dist-packages/pyproject_api/_backend.py True setuptools.build_meta
typing: install_package> python -I -m pip install --force-reinstall --no-deps /home/yoh/proj/dandi/dandi-cli-master/.tox/.tmp/package/22/dandi-0.64.0+10.g3940aa26.tar.gz
typing: commands[0]> mypy dandi
dandi/dandiapi.py:1381: error: No overload variant of "PrivateAttr" matches argument type "None" [call-overload]
_metadata: Optional[Dict[str, Any]] = PrivateAttr(default_factory=None)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
dandi/dandiapi.py:1381: note: Possible overload variants:
dandi/dandiapi.py:1381: note: def [_T] PrivateAttr(default: _T, *, init: Literal[False] = ...) -> _T
dandi/dandiapi.py:1381: note: def [_T] PrivateAttr(*, default_factory: Callable[[], _T], init: Literal[False] = ...) -> _T
dandi/dandiapi.py:1381: note: def PrivateAttr(*, init: Literal[False] = ...) -> Any
Found 1 error in 1 file (checked 81 source files)
typing: exit 1 (2.81 seconds) /home/yoh/proj/dandi/dandi-cli-master> mypy dandi pid=451944
typing: FAIL code 1 (6.82=setup[4.01]+cmd[2.81] seconds)
evaluation failed :( (6.91 seconds)
tox -e typing 5.66s user 0.72s system 90% cpu 7.080 total
@candleindark @jwodder do you see immediate resolution?