scripts/use_setuptools.py

"""Script that switches build backend to setuptools with mypyc support.

Overwrites pyproject.toml. Does not create a backup.
"""

from pathlib import Path
import tomllib

import tomli_w  # type: ignore[import-not-found]


def use_setuptools() -> None:
    pyproject_path = Path(__file__).parent.parent / "pyproject.toml"
    data = tomllib.loads(pyproject_path.read_bytes().decode())
    data["build-system"] = {
        "requires": ["setuptools>=69", "mypy[mypyc]>=1.13"],
        "build-backend": "setuptools.build_meta",
    }
    pyproject_path.write_bytes(tomli_w.dumps(data).encode())


if __name__ == "__main__":
    use_setuptools()