setup.py

from setuptools import setup, find_packages
from setuptools.command.sdist import sdist

VERSION = '0.0.1'

with open('README.md', 'r') as f:
    long_description = f.read()

dependencies = [
    'apscheduler >= 3.0.0',
    'flask >= 1.0.0',
    'flask_socketio >= 4.0.0'
]


class SdistWithWebpack(sdist):
    """
    We need to extend the sdist command to run webpack in production mode before building the package for distribution.
    """

    def run(self):
        import os
        import subprocess

        if 'CI' not in os.environ:
            if not os.path.exists('frontend/node_build_env'):
                subprocess.check_call(['nodeenv', 'node_build_env'], cwd='frontend')

            subprocess.check_call(
                ['./node_build_env/bin/activate && npm install && npx webpack -p'],
                shell=True,
                cwd='frontend'
            )

        sdist.run(self)


setup(
    name='apschedulerui',
    version=VERSION,
    description='',
    long_description=long_description,
    long_description_content_type='text/markdown',
    author='Federico Schmidt',
    author_email='schmidt.fdr@gmail.com',
    url='https://github.com/schmidtfederico/apscheduler-ui',
    packages=find_packages(exclude=['tests']),
    install_requires=dependencies,
    classifiers=[
        'Development Status :: 3 - Alpha',
        'Intended Audience :: Developers',
        'License :: OSI Approved :: MIT License',
        'Programming Language :: Python',
        'Programming Language :: Python :: 3',
        "Programming Language :: Python :: 3.5",
        'Programming Language :: Python :: 3.6',
        'Programming Language :: Python :: 3.7',
        'Operating System :: OS Independent',
        'Topic :: Internet'
    ],
    python_requires='>=3.5, <4',
    extras_require={
        'testing': ['requests'],
        'testing:python_version == "3.5"': ['mock']
    },
    cmdclass={'sdist': SdistWithWebpack},
    include_package_data=True
)