f2py false positive exit status by unknown option

[Serge3leo]

parallels@vmd9leom:~/soft/my/fortran_magic$ python -m numpy.f2py -v
2.4.3
parallels@vmd9leom:~/soft/my/fortran_magic$ python -m numpy.f2py -c lost-file.f90 --unknown-option && echo "False-positive: $?"
Cannot use distutils backend with Python>=3.12, using meson backend instead.
Using meson backend
Will pass --lower to f2py
See https://numpy.org/doc/stable/f2py/buildtools/meson.html
OSError: [Errno 2] No such file or directory: 'lost-file.f90'. Skipping file "lost-file.f90".
Unknown option '--unknown-option'
False-positive: 0

[mattip]

What is the actual problem you are describing, what did you expect to happen when you pass in an unknown command line option? Did this work once and now fail?

[Serge3leo]

...what did you expect to happen when you pass in an unknown command line option?

f2py must return non-zero exit code, if can't create module.

What is the actual problem you are describing...

For example, cell of Jupyter Notebook (with fortran magic):

%%fortran {additional_options}
subroutine foo
end subroutine

https://github.com/Serge3leo/temp-cola/blob/main/f2py_bug.ipynb

For unknown options print irrelevant captured logs of import, but don't print captured output of f2py.

Did this work once and now fail?

If my memory serves me correctly, it worked fine for distutils backend.