Use github actions to publish to pypi (#254)

.github/workflows/publish-to-pypi.yml

@@ -0,0 +1,38 @@
+name: Publish Package
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build-and-publish:
+    name: Build and publish Python package
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python 3.9
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.9
+      - name: Install pypa/build
+        run: |
+          python -m pip install --upgrade setuptools pip wheel
+          python -m pip install build --user
+      - name: Build a binary wheel and a source tarball
+        run: python -m build --sdist --wheel --outdir dist/ .
+      - name: Publish package to test PyPI
+        if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
+        uses: pypa/gh-action-pypi-publish@master
+        with:
+          user: __token__
+          password: ${{ secrets.TEST_PYPI_API_TOKEN }}
+          repository_url: https://test.pypi.org/legacy/
+      - name: Publish package to PyPI
+        if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
+        uses: pypa/gh-action-pypi-publish@master
+        with:
+          user: __token__
+          password: ${{ secrets.PYPI_API_TOKEN }}
+
+