Update .gitea/workflows/notebook-test.yml

.gitea/workflows/notebook-test.yml

@@ -10,7 +10,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version: "3.11"   # avoid bleeding-edge 3.13 surprises
+          python-version: "3.11"
 
       - name: Install deps
         run: |
@@ -21,19 +21,22 @@ jobs:
         run: python -m ipykernel install --user --name python3
 
       - name: Create sample notebook if missing
+        shell: bash
         run: |
+          set -euo pipefail
           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
+            printf '%s\n' \
+              '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)' \
+              > create_nb.py
+            python create_nb.py
           fi
 
       - name: Execute notebook with Papermill
-        run: papermill notebook.ipynb output.ipynb -k python3
+        run: papermill notebook.ipynb output.ipynb -k python3