Update .gitea/workflows/notebook-test.yml

.gitea/workflows/notebook-test.yml

@@ -8,13 +8,32 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Set up Python
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
-          python-version: '3.x'
+          python-version: "3.11"   # avoid bleeding-edge 3.13 surprises
 
-      - name: Install papermill
-        run: pip install papermill
-
-      - name: Execute notebooks
+      - name: Install deps
         run: |
-          papermill notebook.ipynb output.ipynb
+          python -m pip install --upgrade pip
+          pip install papermill nbformat ipykernel
+
+      - name: Ensure kernel
+        run: python -m ipykernel install --user --name python3
+
+      - name: Create sample notebook if missing
+        run: |
+          if [ ! -f notebook.ipynb ]; then
+            python - <<'PY'
+            import nbformat as nbf
+            nb = nbf.v4.new_notebook()
+            nb.cells = [
+              nbf.v4.new_markdown_cell("# Demo Notebook"),
+              nbf.v4.new_code_cell("x = 2 + 2\nprint('Result:', x)")
+            ]
+            with open("notebook.ipynb", "w", encoding="utf-8") as f:
+                nbf.write(nb, f)
+            PY
+          fi
+
+      - name: Execute notebook with Papermill
+        run: papermill notebook.ipynb output.ipynb -k python3