ipython history magic seems broken

{
 "metadata": {
  "name": ""
 },
 "nbformat": 3,
 "nbformat_minor": 0,
 "worksheets": [
  {
   "cells": [
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "from IPython.display import YouTubeVideo\n",
      "# Khan Academy on lists\n",
      "YouTubeVideo('zEyEC34MY1A#t=1m23s') \n",
      "#? does not work with time code\n",
      "#don't use ? use #t"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "html": [
        "\n",
        "        <iframe\n",
        "            width=\"400\"\n",
        "            height=300\"\n",
        "            src=\"http://www.youtube.com/embed/zEyEC34MY1A#t=1m23s\"\n",
        "            frameborder=\"0\"\n",
        "            allowfullscreen\n",
        "        ></iframe>\n",
        "        "
       ],
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 20,
       "text": [
        "<IPython.lib.display.YouTubeVideo at 0x4374f50>"
       ]
      }
     ],
     "prompt_number": 20
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "from IPython.display import YouTubeVideo\n",
      "# Khan Academy on lists\n",
      "YouTubeVideo('zEyEC34MY1A') #does not work with time code"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "html": [
        "\n",
        "        <iframe\n",
        "            width=\"400\"\n",
        "            height=300\"\n",
        "            src=\"http://www.youtube.com/embed/zEyEC34MY1A\"\n",
        "            frameborder=\"0\"\n",
        "            allowfullscreen\n",
        "        ></iframe>\n",
        "        "
       ],
       "output_type": "pyout",
       "prompt_number": 3,
       "text": [
        "<IPython.lib.display.YouTubeVideo at 0x442c650>"
       ]
      }
     ],
     "prompt_number": 3
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "Ipython.diplay?"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "Object `Ipython.diplay` not found.\n"
       ]
      }
     ],
     "prompt_number": 3
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "from IPython.display import YouTubeVideo\n"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 10
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "IPython.display?"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "Object `IPython.display` not found.\n"
       ]
      }
     ],
     "prompt_number": 11
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "%history -l 10-11"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stderr",
       "text": [
        "UsageError: argument -l: invalid int value: '10-11'"
       ]
      }
     ],
     "prompt_number": 12
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "%history?"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 13
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "%history -n 10-11 -o"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "  10: from IPython.display import YouTubeVideo\n",
        "  11: IPython.display?\n"
       ]
      }
     ],
     "prompt_number": 19
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "%history -o -n 10-11"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "  10: from IPython.display import YouTubeVideo\n",
        "  11: IPython.display?\n"
       ]
      }
     ],
     "prompt_number": 21
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "%history -o"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "from IPython.display import YouTubeVideo\n",
        "# Khan Academy on lists\n",
        "YouTubeVideo('zEyEC34MY1A#t=1m23s') \n",
        "#? does not work with time code\n",
        "#don't use ? use #\n",
        "<IPython.lib.display.YouTubeVideo at 0x4374590>\n",
        "from IPython.display import YouTubeVideo\n",
        "# Khan Academy on lists\n",
        "YouTubeVideo('zEyEC34MY1A#t=1m23s') \n",
        "#? does not work with time code\n",
        "#don't use ? use #\n",
        "<IPython.lib.display.YouTubeVideo at 0x4374650>\n",
        "Ipython.diplay?\n",
        "from IPython.display import YouTubeVideo\n",
        "Ipython.display?\n",
        "Ipython.display?\n",
        "%history\n",
        "IPython.display?\n",
        "IPython.display?\n",
        "from IPython.display import YouTubeVideo\n",
        "IPython.display?\n",
        "%history -l 10-11\n",
        "%history?\n",
        "%history -n 10-11\n",
        "%history -n 10-11 -o\n",
        "%history -o -n 10-11\n",
        "%history -o 10-11 -n 10-11\n",
        "%history -o -n 10-11\n",
        "%history -n 10-11 -o\n",
        "from IPython.display import YouTubeVideo\n",
        "# Khan Academy on lists\n",
        "YouTubeVideo('zEyEC34MY1A#t=1m23s') \n",
        "#? does not work with time code\n",
        "#don't use ? use #t\n",
        "<IPython.lib.display.YouTubeVideo at 0x4374f50>\n",
        "%history -o -n 10-11\n",
        "%history -o\n"
       ]
      }
     ],
     "prompt_number": 22
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [],
     "language": "python",
     "metadata": {},
     "outputs": []
    }
   ],
   "metadata": {}
  }
 ]
}