setup.py

#!/usr/bin/env python
import os
from platform import architecture, machine
from setuptools import setup
import sys

# environment variables for cross-platform package creation
platform = os.environ.get('PYSOUNDFILE_PLATFORM', sys.platform)
architecture0 = os.environ.get('PYSOUNDFILE_ARCHITECTURE')
if architecture0 is None:
    # follow the same decision tree as in soundfile.py after
    # _find_library('sndfile') fails:
    if sys.platform == 'win32':
        architecture0 = architecture()[0]  # 64bit or 32bit
    else:
        architecture0 = machine()  # x86_64 or arm64

if platform == 'darwin':
    libname = 'libsndfile_' + architecture0 + '.dylib'
elif platform == 'win32':
    libname = 'libsndfile_' + architecture0 + '.dll'
elif platform == 'linux':
    libname = 'libsndfile_' + architecture0 + '.so'
else:
    libname = None

if libname and os.path.isdir('_soundfile_data'):
    packages = ['_soundfile_data']
    package_data = {'_soundfile_data': [libname, 'COPYING']}
    zip_safe = False
else:
    packages = None
    package_data = None
    zip_safe = True

cmdclass = {}

try:
    from wheel.bdist_wheel import bdist_wheel
except ImportError:
    pass
else:

    class bdist_wheel_half_pure(bdist_wheel):
        """Create OS-dependent, but Python-independent wheels."""

        def get_tag(self):
            pythons = 'py2.py3'
            if platform == 'darwin':
                if architecture0 == 'x86_64':
                    oses = 'macosx_10_9_x86_64'
                else:
                    oses = 'macosx_11_0_arm64'
            elif platform == 'win32':
                if architecture0.lower() == 'arm64' or machine() == 'ARM64':
                    oses = 'win_arm64'
                elif architecture0 == 'x86' or architecture0 == '32bit':
                    oses = 'win32'
                elif architecture0 == 'x64' or architecture0 == '64bit':
                    oses = 'win_amd64'
            elif platform == 'linux':
                # using the centos:7 runner with glibc2.17:
                if architecture0 == 'arm64':
                    pep600_architecture = 'aarch64'
                else:
                    pep600_architecture = architecture0

                oses = 'manylinux_2_28_{}'.format(pep600_architecture)
            else:
                pythons = 'py2.py3'
                oses = 'any'
            return pythons, 'none', oses

    cmdclass['bdist_wheel'] = bdist_wheel_half_pure

with open('soundfile.py') as f:
    for line in f:
        if line.startswith('__version__'):
            _, soundfile_version = line.split('=')
            soundfile_version = soundfile_version.strip(' "\'\n')
            break
    else:
         raise RuntimeError("Could not find __version__ in soundfile.py")

setup(
    name='soundfile',
    version=soundfile_version,
    description='An audio library based on libsndfile, CFFI and NumPy',
    author='Bastian Bechtold',
    author_email='basti@bastibe.de',
    url='https://github.com/bastibe/python-soundfile',
    keywords=['audio', 'libsndfile'],
    py_modules=['soundfile'],
    packages=packages,
    package_data=package_data,
    zip_safe=zip_safe,
    license='BSD 3-Clause License',
    setup_requires=["cffi>=1.0"],
    install_requires=['cffi>=1.0', 'numpy'],
    cffi_modules=["soundfile_build.py:ffibuilder"],
    extras_require={'numpy': []}, # This option is no longer relevant, but the empty entry must be left in to avoid breaking old build scripts.
    platforms='any',
    classifiers=[
        'Development Status :: 5 - Production/Stable',
        'Intended Audience :: Developers',
        'Intended Audience :: Science/Research',
        'License :: OSI Approved :: BSD License',
        'Natural Language :: English',
        'Operating System :: OS Independent',
        'Programming Language :: Python',
        'Programming Language :: Python :: 3',
        'Programming Language :: Python :: 2',
        'Programming Language :: Python :: Implementation :: PyPy',
        'Programming Language :: Python :: Implementation :: CPython',
        'Topic :: Multimedia :: Sound/Audio',
    ],
    long_description=open('README.rst').read(),
    long_description_content_type="text/x-rst",
    cmdclass=cmdclass,
)