Bump actions/download-artifact from 2 to 4.1.7 in /.github/workflows #39

	name: Build

	on:
	push:
	branches:
	- "**"
	tags:
	- "v*"

	jobs:
	build_src_wheel:
	name: Build source wheel
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v2
	with:
	submodules: recursive

	- uses: actions/setup-python@v2
	name: Install Python 3.9
	with:
	python-version: 3.9

	- name: Update to latest pip
	run: \|
	python -m pip install -U setuptools pip wheel

	- name: Build wheel
	run: \|
	python setup.py sdist -d wheelhouse

	- uses: actions/upload-artifact@v2
	with:
	name: wheels
	path: wheelhouse

	build_plat_wheels:
	strategy:
	matrix:
	os: ["ubuntu-latest", "windows-latest", "macos-latest"]

	name: Build platform wheels on ${{ matrix.os }}
	runs-on: ${{ matrix.os }}

	steps:
	- uses: actions/checkout@v2
	with:
	submodules: recursive

	- uses: actions/setup-python@v2
	name: Install Python 3.9
	with:
	python-version: 3.9

	- name: Install cibuildwheel
	run: \|
	python -m pip install cibuildwheel~=2.0

	- name: Build wheel
	run: \|
	python -m cibuildwheel --output-dir wheelhouse
	env:
	CIBW_BUILD: cp*
	CIBW_ARCHS_MACOS: universal2

	- uses: actions/upload-artifact@v2
	with:
	name: wheels
	path: ./wheelhouse

	pypi_upload:
	needs: [build_src_wheel, build_plat_wheels]
	name: Upload wheels to pypi
	runs-on: ubuntu-latest
	if: startsWith(github.ref, 'refs/tags')

	steps:
	- uses: actions/[email protected]
	with:
	name: wheels
	path: dist

	- name: Publish package to PyPI
	uses: pypa/[email protected]
	with:
	user: __token__
	password: ${{ secrets.PYPI_TOKEN }}

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