{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Autoreload problem any class\n",
    "this notebook reproduces the failure of autoreload for any library on its update after the notebook has started, which breaks it. "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "%reload_ext autoreload\n",
    "%autoreload 2\n",
    "\n",
    "import sys, pickle\n",
    "\n",
    "file = \"mytestclass.py\"\n",
    "\n",
    "text = \"\"\"\n",
    "class Test():\n",
    "    def __init__(self):\n",
    "        self.ok = 1\n",
    "\"\"\"\n",
    "with open(\"mytestclass.py\",\"w\") as f: f.write(text)\n",
    "\n",
    "from mytestclass import *\n",
    "test = Test()\n",
    "\n",
    "# works\n",
    "p = pickle.dumps(test)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# touch forces autoreloader to reload the library file\n",
    "!echo touch $file\n",
    "!touch $file"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# now it fails\n",
    "p = pickle.dumps(test)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# cleanup\n",
    "!rm $file "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 3",
   "language": "python",
   "name": "python3"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 2
}