{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {
    "ExecuteTime": {
     "end_time": "2023-03-08T23:01:09.782916Z",
     "start_time": "2023-03-08T23:01:09.705831Z"
    },
    "collapsed": false,
    "jupyter": {
     "outputs_hidden": false
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "cell one: 2\n"
     ]
    }
   ],
   "source": [
    "def unused_variable():\n",
    "    x = 1\n",
    "    y = 2\n",
    "    print(f\"cell one: {y}\")\n",
    "\n",
    "unused_variable()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Let's do another mistake"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {
    "ExecuteTime": {
     "end_time": "2023-03-08T23:01:09.915760Z",
     "start_time": "2023-03-08T23:01:09.733809Z"
    },
    "collapsed": true,
    "jupyter": {
     "outputs_hidden": true
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "cell two: set()\n"
     ]
    }
   ],
   "source": [
    "def mutable_argument(z=set()):\n",
    "  print(f\"cell two: {z}\")\n",
    "\n",
    "mutable_argument()\n"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Let's create an empty cell"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Multi-line empty cell!"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(\"after empty cells\")"
   ]
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python (ruff)",
   "language": "python",
   "name": "ruff"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.11.3"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 4
}
