Merge remote-tracking branch 'origin/master'

.github/workflows/pypi.yml

@@ -0,0 +1,25 @@
+name: PyPI
+
+on:
+  push:
+    tags:
+      - '*'
+
+jobs:
+  build-and-publish:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python
+      uses: actions/setup-python@v1
+      with:
+        python-version: '3.x'
+    - name: Install build dependencies
+      run: pip install -U setuptools wheel build
+    - name: Build
+      run: python -m build .
+    - name: Publish
+      uses: pypa/gh-action-pypi-publish@master
+      with:
+        password: ${{ secrets.PYPI_API_TOKEN }}
+        skip_existing: false