setup.py

import os.path

try:
    from setuptools import setup, find_packages
except ImportError:
    from gssapi_ez_setup import use_setuptools
    use_setuptools()
    from setuptools import setup, find_packages

from distutils.command.build import build
from setuptools.command.install import install


def get_ext_modules():
    from gssapi.bindings import ffi
    return [ffi.verifier.get_extension()]


class CFFIBuild(build):

    def finalize_options(self):
        self.distribution.ext_modules = get_ext_modules()
        build.finalize_options(self)


class CFFIInstall(install):

    def finalize_options(self):
        self.distribution.ext_modules = get_ext_modules()
        install.finalize_options(self)


REQUIRES = [
    'cffi>=0.8',
    'six>=1.5.0',
    'pyasn1>=0.1.2',
]

base_dir = os.path.dirname(__file__)

about = {}
with open(os.path.join(base_dir, "gssapi", "__about__.py")) as f:
    exec(f.read(), about)


setup(
    name=about["__title__"],
    version=about["__version__"],
    packages=find_packages(exclude=["tests.*", "tests"]),
    py_modules=["gssapi_ez_setup"],

    # package_data specifies what is included in a bdist
    package_data={
        "gssapi.bindings": ["*.cdef"]
    },

    setup_requires=REQUIRES,
    install_requires=REQUIRES,

    # for cffi
    zip_safe=False,
    ext_package="gssapi.bindings",
    cmdclass={
        "build": CFFIBuild,
        "install": CFFIInstall,
    },

    # metadata for upload to PyPI
    author=about["__author__"],
    author_email="hugh@sigmaris.info",
    description="An object-oriented interface to GSSAPI for Python",
    license=about["__license__"],
    keywords="gssapi kerberos",
    url="https://github.com/sigmaris/python-gssapi",
)