workflow for automatic release

.github/workflows/release.yml

@@ -0,0 +1,23 @@
+name: automatic-release
+
+on:
+  pull_request:
+    types:
+      - closed
+    branches:
+      - main
+
+jobs:
+  upload-release-on-pypi:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install setuptools wheel twine
+      - name: Upload release
+        run: |
+          python setup.py sdist
+          twine upload dist/* -u __token__ -p {{ secrets.PYPI_PASSWORD }}