diff --git a/module2/exo4/exercice.ipynb b/module2/exo4/exercice.ipynb
index 0bbbe371b01e359e381e43239412d77bf53fb1fb..f84eeaf7d159c443683e11bf6238a549b10534e8 100644
--- a/module2/exo4/exercice.ipynb
+++ b/module2/exo4/exercice.ipynb
@@ -1,5 +1,51 @@
 {
- "cells": [],
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Analyse des mots-clés de mon journal"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Mise en forme de mon journal\n",
+    "Mes paragraphes sont titrés \"Date:JJ/MM/AAAA\".\n",
+    "\n",
+    "La première ligne du paragraphe contient [Mots Clés:Xxxx,Yyyy,Zzzz] où Xxxx, Yyyy, Zzzz sont des mots-clés."
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Recupération des données"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "NomFichentree = \"work/Journal/Readme_Journal.md\"\n",
+    "NomFichsortie = \"work/module2/exo4/Info_Journal.csv\"\n",
+    "\n",
+    "with open(NomFichsortie, \"w\", encoding='utf-8') as sortie:\n",
+    "    with open(NomFichentree, \"r\", encoding='utf-8') as entree:\n",
+    "        for ligne in entree:\n",
+    "            if \"Date:\" in ligne:\n",
+    "                (rien,date) = ligne.lstrip('## ').strip().split(':')\n",
+    "            if \"Mots Clés\" in ligne:\n",
+    "                (rien,mots) = ligne.strip('Mots Clés').split(':')\n",
+    "                listemots = mots.strip().split(',')\n",
+    "                for mot in listemots:\n",
+    "                    sortie.write(f\"{date};{mot}\\n\")"
+   ]
+  }
+ ],
  "metadata": {
   "kernelspec": {
    "display_name": "Python 3",
@@ -16,10 +62,9 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.6.3"
+   "version": "3.6.4"
   }
  },
  "nbformat": 4,
  "nbformat_minor": 2
 }
-