Add GH Action GitHub + PyPI release automation on git version tag pushes

.github/workflows/publish-release.yml

@@ -0,0 +1,47 @@
+on:
+  push:
+    tags:
+      - "v*" # Push events to matching `v*` version srings. e.g. v1.0, v20.15.10
+
+name: Create and Publish Release
+
+jobs:
+  build:
+    name: Create and Publish Release
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: [3.9]
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install release dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install --upgrade setuptools wheel twine
+      - name: Get release notes
+        id: release_notes
+        run: |
+          CHANGELOG=$(git tag -l --format='%(contents)' ${{ github.ref }})
+          echo "::set-output name=changelog::$CHANGELOG"
+      - name: Create GitHub release
+        id: create_release
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ github.ref }}
+          release_name: ${{ github.ref }}
+          body: ${{ steps.release_notes.outputs.changelog }}
+          draft: false
+          prerelease: false
+      - name: Build and publish to PyPI
+        env:
+          TWINE_USERNAME: ${{ secrets.PYPI_USERNAME }}
+          TWINE_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
+        run: |
+          python setup.py sdist bdist_wheel
+          twine upload dist/*