create CD files for auto publishing on [test.]pypi.org

.github/workflows/buildwheel.yml

@@ -0,0 +1,43 @@
+name: Build Wheel and source tarball
+on:
+  # Creates a reusable workflow
+  workflow_call:
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  test:
+    uses: ./.github/workflows/ci-test.yml
+  build-and-upload:
+    name: Build and upload
+    runs-on: ubuntu-latest
+    needs: [test]
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.x"
+
+      - name: Install pypa/build
+        run: >-
+          python3 -m
+          pip install
+          build
+          --user
+  
+      - name: Build a binary wheel and a source tarball
+        run: >-
+          python3 -m
+          build
+          --sdist
+          --wheel
+          --outdir dist/
+          .
+
+      - name: Upload binary wheel
+        uses: actions/upload-artifact@v4
+        with:
+          name: wheel
+          path: dist/

.github/workflows/ci-test.yml

@@ -1,6 +1,11 @@
 name: Run CI tests
 
 on:
+  # Creates a reusable workflow
+  workflow_call:
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+  # Runs the workflow when adding to the main branch
   push:
     branches:
       - main

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

@@ -0,0 +1,25 @@
+name: Publish to Pypi
+
+on:
+  on:
+  push:
+    tags:
+      - v*.*.*
+
+jobs:
+  build:
+    uses: ./.github/workflows/buildwheel.yml
+  pypi-publish:
+    name: Publish to PyPI
+    needs: [build]
+    permissions:
+      id-token: write
+    environment: release
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          name: wheel
+          path: dist
+      - name: Publish package distributions to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1

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

@@ -0,0 +1,27 @@
+name: Publish to TestPypi
+
+on:
+  # Creates a reusable workflow
+  workflow_call:
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  build:
+    uses: ./.github/workflows/buildwheel.yml
+  test-publish:
+    name: Publish to TestPyPI
+    needs: [build]
+    permissions:
+      id-token: write
+    environment: test-release
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          name: wheel
+          path: dist
+      - name: Publish package distributions to TestPyPI
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          repository-url: https://test.pypi.org/legacy/

DEVELOPMENT.md

@@ -0,0 +1,13 @@
+To be able to release this project on [test.]pypi.org please follow these instructions:
+
+Long version:
+https://packaging.python.org/en/latest/guides/publishing-package-distribution-releases-using-github-actions-ci-cd-workflows/
+TL;DR
+ - create a github environmnent (Github->Your Project->Settings->Environments) with the safety regulations you prefer, e.g. restriction
+   to a fixed set of branches like "test_release" or manual confirmation
+   This step is important to prevent other people from releasing new versions on accident
+ - create a [test.]pypi.org account (enable 2fa)
+ - create a project with the same name
+ - add the formerly created github environment
+ - run the respective CI scripts either manually (test.pypi.org) or by tagging a release version (pypi.org)
+