setup.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
    Use setup.cfg to configure your project.

    This file was generated with PyScaffold 3.1.
    PyScaffold helps you to put up the scaffold of your new Python project.
    Learn more under: https://pyscaffold.org/
"""
import sys

from pkg_resources import require, VersionConflict
from setuptools import setup

try:
    from setuptools_rust import Binding, RustExtension

    has_rust = True
except ImportError:
    has_rust = False
    pass

try:
    require("setuptools>=38.3")
except VersionConflict:
    print("Error: version of setuptools is too old (<38.3)!")
    sys.exit(1)

# import subprocess
# toolchains = subprocess.check_output(["rustup", "toolchain", "list"]).decode('utf-8').split("\n")
# nightlys = sorted([x[:x.find(' ') if x.find(' ') != -1 else None] for x in toolchains if x.startswith('nightly')])
# import os
# os.environ['RUSTUP_TOOLCHAIN'] = nightlys[0] # use the oldest one...
# print("USING", os.environ['RUSTUP_TOOLCHAIN'])


if __name__ == "__main__":
    if has_rust:
        setup(
            rust_extensions=[
                RustExtension(
                    "mbf_nested_intervals.mbf_nested_intervals",
                    binding=Binding.PyO3,
                    debug=False,
                )
            ],
        )
    else:
        setup()