setup.py

from setuptools import Extension, setup, find_packages
from Cython.Build import cythonize
import numpy as np

# https://setuptools.readthedocs.io/en/latest/setuptools.html#declaring-extras-optional-features-with-their-own-dependencies

extensions = [
  Extension('trusat.caccelerated',
            sources=['trusat/caccelerated.pyx'],
            include_dirs=[np.get_include()],
            extra_compile_args=['-O3','-ffast-math','-march=native'],
  ),
#   Extension('trusat.profile',
#             sources=['trusat/profile.pyx'],           
#             optional='optional',
#             include_dirs=[np.get_include(), '/usr/local/include'],
#             libraries=["m"],
#             extra_compile_args=['-O3','-ffast-math','-march=native','-fopenmp','-I/usr/local/opt/llvm/include'],
#             extra_link_args=['-lomp',"-L/usr/local/opt/libomp/lib/", "-L/usr/local/opt/llvm/lib"],
#             # extra_link_args=['-lomp','-L/usr/local/opt/libomp/lib/'],
#   )
]

with open("README.md", "r") as fh:
    long_description = fh.read()

with open('requirements.txt') as f:
    requirements = f.read().splitlines()

setup(
    name="trusat", 
    version="0.9.0",
    author="Chris Lewicki",
    author_email="chris@lewicki.com",
    description="TruSat satellite observation processing utilities",
    long_description=long_description,
    long_description_content_type="text/markdown",
    url="https://trusat.org/",
    project_urls={
        "Source" : "https://github.com/TruSat/trusat-orbit",
        "Tracker" : "https://github.com/TruSat/trusat-orbit/issues",
        "Learning Hub" : "https://learn.trusat.org/docs/start-here",
        "Forums" : "https://discuss.trusat.org/"
    },
    packages=['trusat'],
    classifiers = [
        'Development Status :: 4 - Beta',
        'Intended Audience :: Developers',
        'Intended Audience :: Science/Research',
        'License :: OSI Approved :: Apache Software License',
        'Natural Language :: English',
        'Operating System :: POSIX',
        'Operating System :: MacOS :: MacOS X',
        'Programming Language :: Python :: 3 :: Only',
        'Programming Language :: Python :: 3.6',
        'Programming Language :: Python :: 3.7',
        'Programming Language :: Python :: 3.8',
        'Programming Language :: Python :: Implementation :: CPython',
        'Topic :: Software Development :: Libraries :: Python Modules',
        'Topic :: Scientific/Engineering',
    ],
    python_requires='>=3.6',
    install_requires=[
        requirements,
        'trusat_backend==1.1.0',
    ],
    ext_modules=cythonize(extensions),
    dependency_links = [
        'git+https://github.com/TruSat/trusat-backend@dev.chris.package#egg=trusat_backend-1.1.0'
    ],
)