Tests fail: E ModuleNotFoundError: No module named 'pybind11_tests'

[yurivict]

==================================================================================== test session starts =====================================================================================
platform freebsd13 -- Python 3.9.13, pytest-7.1.2, pluggy-1.0.0 -- /usr/local/bin/python3.9
cachedir: .pytest_cache
hypothesis profile 'default' -> database=DirectoryBasedExampleDatabase('/disk-samsung/freebsd-ports/science/py-tweedledum/work-py39/tweedledum-1.1.1/.hypothesis/examples')
rootdir: /disk-samsung/freebsd-ports/science/py-tweedledum/work-py39/tweedledum-1.1.1
plugins: forked-1.4.0, hypothesis-6.53.0, xdist-2.5.0, cov-2.9.0, typeguard-2.13.3, mock-1.10.4
collected 0 items / 1 error                                                                                                                                                                  

=========================================================================================== ERRORS ===========================================================================================
_______________________________________________________________________________ ERROR collecting test session ________________________________________________________________________________
/usr/local/lib/python3.9/importlib/__init__.py:127: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
<frozen importlib._bootstrap>:1030: in _gcd_import
    ???
<frozen importlib._bootstrap>:1007: in _find_and_load
    ???
<frozen importlib._bootstrap>:986: in _find_and_load_unlocked
    ???
<frozen importlib._bootstrap>:680: in _load_unlocked
    ???
/usr/local/lib/python3.9/site-packages/_pytest/assertion/rewrite.py:168: in exec_module
    exec(co, module.__dict__)
external/pybind11/tests/conftest.py:19: in <module>
    import pybind11_tests  # noqa: F401
E   ModuleNotFoundError: No module named 'pybind11_tests'
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Interrupted: 1 error during collection !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
====================================================================================== 1 error in 2.77s ======================================================================================
*** Error code 2

Version: 1.1.1