Start adding github actions release activity

.github/workflows/pypi.yml

@@ -0,0 +1,34 @@
+name: pypi
+on: [push]
+jobs:
+  pypi:
+    name: upload to pypi
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+      with:
+        fetch-depth: 0
+    - name: Set up Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: '3.9'
+    - name: Install build prerequisites
+      if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags')
+      run: |
+        python -m pip install --upgrade twine build cibuildwheel
+    - name: sdist
+      if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags')
+      run: |
+        python -m build --sdist
+    - name: wheel
+      if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags')
+      run: |
+        python -m cibuildwheel --output-dir wheelhouse
+    - name: upload
+      if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags')
+      env:
+        TWINE_USERNAME: "__token__"
+        TWINE_PASSWORD: ${{ secrets.pypi_password }}
+      run: |
+        twine upload dist/*
+        twine upload wheelhouse/*