feat: add python dummy notebook and justfile to run it

Author: gabyx

src/generic/tools/nix/flake.nix.jinja

@@ -41,6 +41,7 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
     {% elif project_language == "python" -%}
+    # The Python packages for all versions.
     nixpkgs-python = {
       url = "github:cachix/nixpkgs-python";
       inputs.nixpkgs.follows = "nixpkgs";

src/python/justfile.jinja

@@ -15,4 +15,8 @@ test *args:
 # Run an executable.
 run *args:
     uv run cli "$@"
+
+# Run the Jupyter notebook.
+notebook *args:
+    uv run python -m notebook "$@"
 {%- endraw %}

src/python/notebooks/notebook.ipynb

@@ -0,0 +1,53 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "238b20df-b5e0-43e9-ade4-06a0c69bff6b",
+   "metadata": {},
+   "source": [
+    "# Welcome\n",
+    "\n",
+    "This is your demo notebook for all your python prototyping needs."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "ca8f7fdf-a5d3-4589-ba9c-5ddac5f5e61c",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "1.826086956521739\n"
+     ]
+    }
+   ],
+   "source": [
+    "print(42/23)"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.13.1"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}