restruture old ch02 into appendix A

appendix-A/02_installing-python-libraries/jupyter_environment_check.ipynb

@@ -0,0 +1,123 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "18d54544-92d0-412c-8e28-f9083b2bab6f",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[OK] Your Python version is 3.10.12\n"
+     ]
+    }
+   ],
+   "source": [
+    "from python_environment_check import check_packages, get_requirements_dict"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "id": "60e03297-4337-4181-b8eb-f483f406954a",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "d = get_requirements_dict()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "id": "d982ddf9-c167-4ed2-9fce-e271f2b1e1de",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[OK] numpy 1.25.1\n",
+      "[OK] scipy 1.11.1\n",
+      "[OK] pandas 2.0.3\n",
+      "[OK] matplotlib 3.7.2\n",
+      "[OK] jupyterlab 4.0.3\n",
+      "[OK] ipywidgets 8.0.7\n",
+      "[OK] watermark 2.4.3\n",
+      "[OK] torch 2.0.1\n"
+     ]
+    }
+   ],
+   "source": [
+    "check_packages(d)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "e0bdd547-333c-42a9-92f3-4e552f206cf3",
+   "metadata": {},
+   "source": [
+    "Same checks as above but using watermark:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "id": "9d696044-9272-4b96-8305-34602807bb94",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "%load_ext watermark"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "id": "ce321731-a15a-4579-b33b-035730371eb3",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "numpy     : 1.25.1\n",
+      "scipy     : 1.11.1\n",
+      "pandas    : 2.0.3\n",
+      "matplotlib: 3.7.2\n",
+      "sklearn   : 1.3.0\n",
+      "watermark : 2.4.3\n",
+      "torch     : 2.0.1\n",
+      "\n",
+      "conda environment: LLMs\n",
+      "\n"
+     ]
+    }
+   ],
+   "source": [
+    "%watermark --conda -p numpy,scipy,pandas,matplotlib,sklearn,watermark,torch"
+   ]
+  }
+ ],
+ "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": "3.10.12"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}