shim setup.py, remove duplication from pyproject

setup.py

@@ -1,108 +1,2 @@
-from codecs import open
-from os import path
-
-from jupyter_packaging import get_data_files, npm_builder, wrap_installers
-from setuptools import find_packages, setup
-
-pjoin = path.join
-name = "jupyterlab_email"
-here = path.abspath(path.dirname(__file__))
-jshere = path.abspath(pjoin(path.dirname(__file__), "js"))
-
-with open(path.join(here, "README.md"), encoding="utf-8") as f:
-    long_description = f.read().replace("\r\n", "\n")
-
-requires = [
-    "beautifulsoup4>=4.9.1",
-    "emails>=0.5.15",
-    "ipython>=7.2.0",
-    "jupyterlab>=3.0.0",
-    "pandas>=0.23.4",
-    "python-magic>=0.4.15",
-]
-
-requires_test = [
-    "pytest>=4.3.0",
-    "pytest-cov>=2.6.1",
-]
-
-requires_dev = (
-    requires
-    + requires_test
-    + [
-        "black>=20.8b1",
-        "bump2version>=1.0.0",
-        "check-manifest",
-        "flake8>=3.7.8",
-        "flake8-black>=0.2.1",
-        "jupyter_packaging",
-        "Sphinx>=1.8.4",
-        "sphinx-markdown-builder>=0.5.2",
-    ]
-)
-
-ext_path = pjoin(name, "extension")
-lab_path = pjoin(name, "labextension")
-
-# Representative files that should exist after a successful build
-jstargets = [
-    pjoin(jshere, "lib", "index.js"),
-]
-
-data_spec = [
-    (
-        "share/jupyter/labextensions/jupyterlab_email",
-        lab_path,
-        "**",
-    ),
-    ("etc/jupyter/jupyter_server_config.d", ext_path, "*.json"),
-]
-
-ensured_targets = [
-    pjoin("jupyterlab_email", "labextension", "package.json"),
-]
-
-builder = npm_builder(build_cmd="build", path=jshere)
-
-setup(
-    name=name,
-    version="0.2.4",
-    description="Sending emails from JupyterLab",
-    long_description=long_description,
-    long_description_content_type="text/markdown",
-    url="https://github.com/timkpaine/jupyterlab_email",
-    author="Tim Paine",
-    author_email="t.paine154@gmail.com",
-    license="Apache 2.0",
-    classifiers=[
-        "Development Status :: 4 - Beta",
-        "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.7",
-        "Programming Language :: Python :: 3.8",
-        "Programming Language :: Python :: 3.9",
-        "Programming Language :: Python :: 3.10",
-        "Framework :: Jupyter",
-        "Framework :: Jupyter :: JupyterLab",
-    ],
-    platforms="Linux, Mac OS X, Windows",
-    keywords=["Jupyter", "Jupyterlab", "Email"],
-    cmdclass=wrap_installers(
-        post_develop=builder, pre_dist=builder, ensured_targets=ensured_targets
-    ),
-    data_files=get_data_files(data_spec),
-    packages=find_packages(
-        exclude=[
-            "tests",
-        ]
-    ),
-    install_requires=requires,
-    test_suite="jupyterlab_autoversion.tests",
-    tests_require=requires_test,
-    extras_require={
-        "dev": requires_dev,
-        "develop": requires_dev,
-    },
-    include_package_data=True,
-    zip_safe=False,
-    python_requires=">=3.7",
-)
+# setup.py shim for use with applications that require it.
+__import__("setuptools").setup()