[bug#53640] Python-black 22.1.0 update

[Vinicius Monego]

Black changed the return type for find_project_root in this version. It
now returns a tuple instead of a Path object. See [1] and [2] to
compare the latest stable with the version in Guix.

That is, lsp-black is not compatible with this version. If that is the
only error then I guess [3] (or two lines below) can be patched via
substitution to extract the first element of the tuple, corresponding
to the Path, but I haven't tried this.

[1]
https://github.com/psf/black/blob/d038a24ca200da9dacc1dcb05090c9e5b45b7869/src/black/files.py#L33

[2]
https://github.com/psf/black/blob/f1d4e742c91dd5179d742b0db9293c4472b765f8/src/black/files.py#L33

[3]
https://github.com/rupert/pyls-black/blob/0f2e9ed8c0fb20f7f88fe47e11b723e311b568d6/pyls_black/plugin.py#L74

Em dom, 2022-01-30 às 15:20 -0500, Leo Famulari escreveu:
> These patches update python-black to 22.1.0, so it's no longer a
> beta.
> 
> I rebuilt all packages reported by `guix refresh -l python-black`,
> and
> the only new failure is of python-pyls-black. Basically, all of its
> tests fail like this:
> 
> ------
> filename = '/tmp/guix-build-python-pyls-black-0.4.7.drv-
> 0/source/tests/fixtures/example.py'
> 
>     def load_config(filename: str) -> Dict:
>         defaults = {
>             "line_length": 88,
>             "fast": False,
>             "pyi": filename.endswith(".pyi"),
>             "skip_string_normalization": False,
>             "target_version": set(),
>         }
>     
>         root = black.find_project_root((filename,))
>     
> >       pyproject_filename = root / "pyproject.toml"
> E       TypeError: unsupported operand type(s) for /: 'tuple' and
> 'str'
> 
> pyls_black/plugin.py:76: TypeError
> =========================== short test summary info
> ============================
> FAILED tests/test_plugin.py::test_pylsp_format_document - TypeError:
> unsuppor...
> FAILED tests/test_plugin.py::test_pyls_format_pyi_document -
> TypeError: unsup...
> FAILED tests/test_plugin.py::test_pylsp_format_document_unchanged -
> TypeError...
> FAILED tests/test_plugin.py::test_pyls_format_pyi_document_unchanged
> - TypeEr...
> FAILED tests/test_plugin.py::test_pylsp_format_document_syntax_error
> - TypeEr...
> FAILED tests/test_plugin.py::test_pylsp_format_document_with_config -
> TypeErr...
> FAILED tests/test_plugin.py::test_pylsp_format_range[0-0-a =
> "hello"\n] - Typ...
> FAILED tests/test_plugin.py::test_pylsp_format_range[1-1-b = 42\n] -
> TypeErro...
> FAILED tests/test_plugin.py::test_pylsp_format_range[0-1-a =
> "hello"\nb = 42\n]
> FAILED tests/test_plugin.py::test_pylsp_format_range_unchanged -
> TypeError: u...
> FAILED tests/test_plugin.py::test_pylsp_format_range_syntax_error -
> TypeError...
> FAILED tests/test_plugin.py::test_load_config - TypeError:
> unsupported operan...
> FAILED tests/test_plugin.py::test_load_config_target_version -
> TypeError: uns...
> FAILED tests/test_plugin.py::test_load_config_py36 - TypeError:
> unsupported o...
> FAILED tests/test_plugin.py::test_load_config_defaults - TypeError:
> unsupport...
> ========================= 15 failed, 1 passed in 0.47s
> =========================
> ------
> 
> Any ideas? I've CC-ed the people who have touched the python-pyls-
> black
> package.