setup.py

#!usr/bin/env python

import os
import platform
import sys
import glob

###########################################################################

# Check Python's version info and exit early if it is too old
if sys.version_info < (3, 7):
    print("This module requires Python >= 3.7")
    sys.exit(0)

###########################################################################

from setuptools import setup, Extension

try:
    from wheel.bdist_wheel import bdist_wheel
except ImportError:
    bdist_wheel = None

if bdist_wheel is not None:
    class bdist_wheel_abi3(bdist_wheel):
        def get_tag(self):
            python, abi, plat = super().get_tag()
            if python.startswith("cp"):
                # on CPython, our wheels are abi3 and compatible back to 3.5
                return "cp38", "abi3", plat

            return python, abi, plat
else:
    bdist_wheel_abi3 = None

should_build_abi3_wheel = (
    bdist_wheel_abi3 and
    platform.python_implementation() == "CPython" and
    sys.version_info >= (3, 8)
)

# Define the extension
macros = []
if should_build_abi3_wheel:
    macros.append(("Py_LIMITED_API", "0x03090000"))

cmdclass = {}

if should_build_abi3_wheel:
    cmdclass["bdist_wheel"] = bdist_wheel_abi3

setup(
    ext_modules = [
        Extension('leidenalg._c_leiden',
                  sources = glob.glob(os.path.join('src', 'leidenalg', '*.cpp')),
                  py_limited_api=should_build_abi3_wheel,
                  define_macros=macros,
                  libraries = ['libleidenalg', 'igraph'],
                  include_dirs=['include', 'build-deps/install/include'],
                  library_dirs=['build-deps/install/lib']
        )
    ],
    cmdclass=cmdclass
)