setup.py

# setup.py
from setuptools import setup, find_packages, Extension
from Cython.Build import cythonize
import glob
import bootstrap

sourcefiles = ["bootstrap.py"]
sourcefiles.extend(glob.glob("src/**/*.c", recursive=True))

extensions = cythonize(Extension(
    name="bootstrap",
    sources=sourcefiles,
    # define_macros=[("CYTHON_NO_PYINIT_EXPORT", "")]
), build_dir="build", language_level="3", quiet=True)

setup(
    name="pyunity",
    packages=bootstrap.packages,
    ext_modules=extensions
)