{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {
    "slideshow": {
     "slide_type": "slide"
    }
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'C:\\\\Users\\\\au121\\\\Desktop\\\\local\\\\ipsa20\\\\code\\\\slides\\\\17_optimization\\\\jupyter'"
      ]
     },
     "execution_count": 1,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "%pwd"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {
    "slideshow": {
     "slide_type": "slide"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "C:\\Users\\au121\\Desktop\\local\\ipsa20\\code\\slides\\17_optimization\\jupyter\\my_folder\n"
     ]
    }
   ],
   "source": [
    "%cd my_folder"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {
    "slideshow": {
     "slide_type": "slide"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      " Volume in drive C is OSDisk\n",
      " Volume Serial Number is 3CDB-90D8\n",
      "\n",
      " Directory of C:\\Users\\au121\\Desktop\\local\\ipsa20\\code\\slides\\17_optimization\\jupyter\\my_folder\n",
      "\n",
      "25-03-2020  22:14    <DIR>          .\n",
      "25-03-2020  22:14    <DIR>          ..\n",
      "25-03-2020  14:57                24 my_document.txt\n",
      "               1 File(s)             24 bytes\n",
      "               2 Dir(s)  382.033.907.712 bytes free\n"
     ]
    }
   ],
   "source": [
    "%ls"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {
    "slideshow": {
     "slide_type": "slide"
    }
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['Document INSIDE folder\\n']"
      ]
     },
     "execution_count": 4,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "open('my_document.txt').readlines()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {
    "slideshow": {
     "slide_type": "slide"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Wall time: 498 ms\n"
     ]
    }
   ],
   "source": [
    "%%time\n",
    "s = 0\n",
    "for x in range(1000000):\n",
    "    s += x ** 2"
   ]
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 3",
   "language": "python",
   "name": "python3"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.8.1"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 4
}