setup.py

import numpy
from setuptools import setup, convert_path
from Cython.Build import cythonize

# Work around bugs in passing CFLAGS to the Cython compilation process
import os
os.environ['CFLAGS'] = '-Ofast -DNPY_NO_DEPRECATED_API'

if __name__ == '__main__':

    main_ns = {}
    ver_path = convert_path('internetarchivepdf/const.py')
    with open(ver_path) as ver_file:
        exec(ver_file.read(), main_ns)

    version = main_ns['__version__']
    setup(
        version = version,
        download_url='https://github.com/internetarchive/archive-pdf-tools/archive/%s.tar.gz' % version,
        include_dirs = [numpy.get_include()],
        scripts=['bin/recode_pdf', 'bin/pdf-metadata-json',
                 'bin/compress-pdf-images', 'bin/pdfcomp',
                 'bin/epub-to-pdf'],
        ext_modules = cythonize(
            ['cython/sauvola.pyx', 'cython/optimiser.pyx'],
            compiler_directives = {'language_level' : '3'},
        ),
    )