[ex1] mirror to with_solutions notebook

day-01/exercise_set_1_with_solution.ipynb

@@ -534,7 +534,21 @@
    "id": "28f1e83d",
    "metadata": {},
    "source": [
-    "Using `plot` method in `matplotlib`, plot the data defined in `d = np.array(range(20))`"
+    "Using `plot` method in `matplotlib`, plot the data defined in `d = np.array(range(20))`\n",
+    "\n",
+    "> The Jupyteach system may return a red warning message when you first import `matplotlib`.\n",
+    "> Please run the cell twice to remove this error. We are working on a fix for the `jupyterlite` environment.\n",
+    "> You can also run this on Google Colab (via the link at the top of this notebook)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "4e48b921",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import matplotlib.pyplot as plt"
    ]
   },
   {
@@ -562,7 +576,6 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "import matplotlib.pyplot as plt\n",
     "fig, ax = plt.subplots()\n",
     "ax.plot(d)\n",
     "plt.show()"