install-pythons

#!/usr/bin/env python3.11
from __future__ import annotations

import argparse
import glob
import os
import subprocess

VERSIONS = ("3.11.14", "3.12.12", "3.13.12", "3.14.3")


def main() -> int:
    parser = argparse.ArgumentParser()
    parser.add_argument("--dest", default="/opt/python")
    args = parser.parse_args()

    os.makedirs(args.dest, exist_ok=True)

    subprocess.check_call(
        ("uv", "python", "install", *VERSIONS, "--install-dir", args.dest),
    )

    for version in VERSIONS:
        major, minor, *_ = version.split(".")

        # uv installs to e.g. cpython-3.14.3-linux-aarch64-gnu/
        matches = glob.glob(os.path.join(args.dest, f"cpython-{major}.{minor}.*"))
        if len(matches) != 1:
            raise AssertionError(
                f"expected exactly one match for cpython-{major}.{minor}.*, "
                f"got {matches}"
            )
        installed_dir = matches[0]

        # symlink cpXY-cpXY -> the uv-installed directory for PATH compat
        link = os.path.join(args.dest, f"cp{major}{minor}-cp{major}{minor}")
        os.symlink(os.path.basename(installed_dir), link)

        py = os.path.join(link, "bin", "python3")
        subprocess.check_call(
            (
                "uv",
                "pip",
                "install",
                "--python",
                py,
                "pip==25.0.1",
                "setuptools==75.8.0",
                "wheel==0.45.1",
            ),
        )
        subprocess.check_call((py, "--version", "--version"))

    return 0


if __name__ == "__main__":
    raise SystemExit(main())