Add PyPI packaging (#8)

* Update package info for PyPI

* Add CI flows for packaging

* Update tox settings for pyproject.toml

* Don't upload to Test PyPI

.github/workflows/ci.yml

@@ -57,3 +57,15 @@ jobs:
       - run: pylint src/**/*.py test/*.py *.py
         env:
           PYTHONPATH: ${{ github.workspace }}/src
+  test-package:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+      - name: Install Python dependencies
+        run: |
+          python -m pip install -U pip
+          python -m pip install setuptools wheel twine build
+
+      - name: Build Python package
+        run: python -m build --sdist --wheel --outdir dist/ .

.github/workflows/publish.yml

@@ -0,0 +1,23 @@
+name: Upload Python Package
+on:
+  release:
+    types: [ created ]
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+      - name: Install Python dependencies
+        run: |
+          python -m pip install -U pip
+          python -m pip install setuptools wheel twine build
+
+      - name: Build Python package
+        run: python -m build --sdist --wheel --outdir dist/ .
+
+      - name: Publish distribution to PyPI
+        if: startsWith(github.ref, 'refs/tags')
+        uses: pypa/gh-action-pypi-publish@master
+        with:
+          password: ${{ secrets.PYPI_API_TOKEN }}

pyproject.toml

@@ -0,0 +1,6 @@
+[build-system]
+requires = [
+    "setuptools>=42",
+    "wheel"
+]
+build-backend = "setuptools.build_meta"

setup.cfg

@@ -5,17 +5,19 @@ description = Compiler IR tools
 long_description = file: README.md
 long_description_content_type = text/markdown
 home_page = https://github.com/ChezJrk/asdl
-author = VCLS (Visual Computing Languages & Systems)
+;author = VCLS (Visual Computing Languages & Systems)
+;author_email = TBD
 maintainer = Alex Reinking
 maintainer_email = [email protected]
 license = MIT License
 keywords = adt, asdl, development, compilers, ir
 python_required =
-    >=3.5, <4
+    >=3.8, <4
 classifiers =
     Development Status :: 3 - Alpha
     License :: OSI Approved :: MIT License
-    Intended Audience :: Developers',
+    Intended Audience :: Developers
+    Operating System :: OS Independent
     Topic :: Software Development :: Build Tools
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3.8
@@ -51,6 +53,7 @@ known-third-party = asdl
 
 [tox:tox]
 envlist = py38, py39, py310
+isolated_build = True
 
 [gh-actions]
 python =