setup.py

import json
import os

from jupyter_packaging import (
    create_cmdclass, install_npm, ensure_targets,
    combine_commands, skip_if_exists
)
import setuptools

CURRENT_DIR = os.path.abspath(os.path.dirname(__file__))

with open(os.path.join(CURRENT_DIR, 'package.json')) as fid:
    data = json.load(fid)

version = data['version']
lab_path = data['jupyterlab']['outputDir']
labext_name = data['name']

# # The name of the project
name = lab_path.split('/')[0]

# Representative files that should exist after a successful build
jstargets = [
    os.path.join(lab_path, "package.json"),
]

package_data_spec = {
    'name': [
        "*"
    ]
}

data_files_spec = [
    ("share/jupyter/labextensions/%s" % labext_name, lab_path, "**"),
    ("share/jupyter/labextensions/%s" % labext_name, CURRENT_DIR, "install.json"),
]

cmdclass = create_cmdclass("jsdeps",
    package_data_spec=package_data_spec,
    data_files_spec=data_files_spec
)

js_command = combine_commands(
    install_npm(CURRENT_DIR, build_cmd="build:prod", npm=["jlpm"]),
    ensure_targets(jstargets),
)

is_repo = os.path.exists(os.path.join(CURRENT_DIR, ".git"))
if is_repo:
    cmdclass["jsdeps"] = js_command
else:
    cmdclass["jsdeps"] = skip_if_exists(jstargets, js_command)

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

setup_args = dict(
    name=name,
    version=version,
    url=data.get('homepage'),
    author=data.get('author'),
    description=data['description'],
    long_description= long_description,
    long_description_content_type="text/markdown",
    cmdclass= cmdclass,
    packages=setuptools.find_packages(),
    install_requires=[
        "jupyterlab>=3.0.0rc15,==3.*",
    ],
    zip_safe=False,
    include_package_data=True,
    python_requires=">=3.6",
    license=data.get('license'),
    platforms="Linux, Mac OS X, Windows",
    keywords=["Jupyter", "JupyterLab", "JupyterLab3"],
    classifiers=[
        "License :: OSI Approved :: BSD License",
        "Programming Language :: Python",
        "Programming Language :: Python :: 3",
        "Programming Language :: Python :: 3.6",
        "Programming Language :: Python :: 3.7",
        "Programming Language :: Python :: 3.8",
        "Framework :: Jupyter",
    ],
)


if __name__ == "__main__":
    setuptools.setup(**setup_args)