Cannot install on Python 3.12

[tpdn]

Cythonについてはあまり詳しくないのですが、Cythonのコードがc++に変換される際にPyUnicode_FromUnicodeを使用しているように見えます。
これは削除が予告されていた非推奨APIであり、予告通りに3.12.0にて削除されたためエラーが発生しています。

---

mojimoji.pyx is converted to C++ code using PyUnicode_FromUnicode.
However, PyUnicode_FromUnicode is a legacy interface and has been removed in Python 3.12.

https://docs.python.org/3.12/c-api/unicode.html
https://docs.python.org/3.11/c-api/unicode.html
https://peps.python.org/pep-0623/

Therefore, the following error occurs on Python 3.12.

[20:21:32] tpdn@GrandMacdoBookProXP /Users/tpdn/gitlab/tpdn/hoge [2] 
> pdm add mojimoji
Adding packages to default dependencies: mojimoji
🔒 Lock successful
Changes are written to pyproject.toml.
Synchronizing working set with resolved packages: 1 to add, 0 to update, 0 to remove

  ✖ Install mojimoji 0.0.12 failed
Retry failed jobs
  ✖ Install mojimoji 0.0.12 failed

ERRORS:
add mojimoji failed:
Traceback (most recent call last):
  File "/Users/tpdn/.pyenv/versions/3.12.0/lib/python3.12/concurrent/futures/thread.py", line 58, in run
    result = self.fn(*self.args, **self.kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/tpdn/.pyenv/versions/3.12.0/lib/python3.12/site-packages/pdm/installers/synchronizers.py", line
283, in install_candidate
    self.manager.install(can)
  File "/Users/tpdn/.pyenv/versions/3.12.0/lib/python3.12/site-packages/pdm/installers/manager.py", line 33, 
in install
    installer(str(prepared.build()), self.environment, prepared.direct_url())
                  ^^^^^^^^^^^^^^^^
  File "/Users/tpdn/.pyenv/versions/3.12.0/lib/python3.12/site-packages/pdm/models/candidates.py", line 395, 
in build
    self.wheel = Path(builder.build(build_dir, metadata_directory=self._metadata_dir))
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/tpdn/.pyenv/versions/3.12.0/lib/python3.12/site-packages/pdm/builders/wheel.py", line 28, in 
build
    filename = self._hook.build_wheel(out_dir, config_settings, metadata_directory)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/tpdn/.pyenv/versions/3.12.0/lib/python3.12/site-packages/pyproject_hooks/_impl.py", line 209, 
in build_wheel
    return self._call_hook('build_wheel', {
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/tpdn/.pyenv/versions/3.12.0/lib/python3.12/site-packages/pyproject_hooks/_impl.py", line 311, 
in _call_hook
    self._subprocess_runner(
  File "/Users/tpdn/.pyenv/versions/3.12.0/lib/python3.12/site-packages/pdm/builders/base.py", line 260, in 
subprocess_runner
    return log_subprocessor(cmd, cwd, extra_environ=env)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/tpdn/.pyenv/versions/3.12.0/lib/python3.12/site-packages/pdm/builders/base.py", line 107, in 
log_subprocessor
    raise build_error(e) from None
pdm.exceptions.BuildError: Build backend raised error: Showing the last 10 lines of the build output:
#define __Pyx_PyUnicode_FromUnicode(u)       PyUnicode_FromUnicode(u, __Pyx_Py_UNICODE_strlen(u))
                                             ^
mojimoji.cpp:5212:16: error: use of undeclared identifier 'PyUnicode_FromUnicode'
  __pyx_t_10 = __Pyx_PyUnicode_FromUnicode(__pyx_v_buf); if (unlikely(!__pyx_t_10)) __PYX_ERR(0, 186, 
__pyx_L1_error)
               ^
mojimoji.cpp:1323:46: note: expanded from macro '__Pyx_PyUnicode_FromUnicode'
#define __Pyx_PyUnicode_FromUnicode(u)       PyUnicode_FromUnicode(u, __Pyx_Py_UNICODE_strlen(u))
                                             ^
2 errors generated.
error: command '/usr/bin/clang' failed with exit code 1

See /var/folders/1b/fvjyq4dn47d19yyhd39w4qs80000gn/T/pdm-install-n40llblw.log for detailed debug log.
[InstallationError]: Some package operations are not complete yet
Add '-v' to see the detailed traceback

[ikuyamada]

イシューを報告いただきありがとうございます。
0.0.13にてPython3.12でも正しくインストールできるようになっていると思います。