diff --git a/module2/exo1/toy_notebook_en.ipynb b/module2/exo1/toy_notebook_en.ipynb
index 99e79f406701002fa23660b29dbc065bb600366a..7c88122c88cb8c9b7f44dbd7ca9f11d9365a6b89 100644
--- a/module2/exo1/toy_notebook_en.ipynb
+++ b/module2/exo1/toy_notebook_en.ipynb
@@ -2,61 +2,12 @@
  "cells": [
   {
    "cell_type": "markdown",
-   "metadata": {
-    "hideCode": true,
-    "hidePrompt": true
-   },
-   "source": [
-    "# On the computation of $\\pi$\n",
-    "## Asking the maths library\n",
-    "My computer tells me that $\\pi$ is *approximatively*"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 3,
    "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "3.141592653589793\n"
-     ]
-    }
-   ],
-   "source": [
-    "from math import *\n",
-    "print(pi)"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {
-    "hideCode": true,
-    "hidePrompt": true
-   },
-   "outputs": [],
    "source": [
     "# On the computation of $\\pi$\n",
-    "\n",
     "## Asking the maths library\n",
     "My computer tells me that $\\pi$ is *approximatively*"
    ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 1,
-   "metadata": {
-    "hideCode": true,
-    "hidePrompt": true
-   },
-   "outputs": [],
-   "source": [
-    "from math import *\n",
-    "print(pi)"
-   ]
   }
  ],
  "metadata": {