Jupyter notebook that shows cell magic to run python2 code in python3 kernel

Cell magic 2to3.ipynb

{
  "cells": [
    {
      "metadata": {
        "toc": "true"
      },
      "cell_type": "markdown",
      "source": "# Table of Contents\n <p>"
    },
    {
      "metadata": {
        "trusted": true,
        "collapsed": false
      },
      "cell_type": "code",
      "source": "print('hi')",
      "execution_count": 1,
      "outputs": [
        {
          "name": "stdout",
          "output_type": "stream",
          "text": "hi\n"
        }
      ]
    },
    {
      "metadata": {
        "trusted": true,
        "collapsed": true
      },
      "cell_type": "code",
      "source": "import lib2to3\nfrom lib2to3.refactor import RefactoringTool, get_fixers_from_package\navail_fixes = set(get_fixers_from_package('lib2to3.fixes'))\nrefactoringTool = RefactoringTool(avail_fixes)\ndel avail_fixes, get_fixers_from_package, RefactoringTool\ndef refactor_cell(src):\n    try:\n        tree = refactoringTool.refactor_string(src+'\\n', '<dummy_name>')\n    except (lib2to3.pgen2.parse.ParseError,\n            lib2to3.pgen2.tokenize.TokenError):\n        return src\n    else:\n        return str(tree)[:-1]",
      "execution_count": 2,
      "outputs": []
    },
    {
      "metadata": {
        "trusted": true,
        "collapsed": false
      },
      "cell_type": "code",
      "source": "from IPython.core.magic import register_cell_magic\n\n@register_cell_magic\ndef run2in3(line, cell):\n    \"\"\"\n    Cell magic that runs python2 code as python3 code, using 2to3lib\n    \"\"\"\n    return eval(refactor_cell(cell))\n\ndel register_cell_magic",
      "execution_count": 3,
      "outputs": []
    },
    {
      "metadata": {
        "trusted": true,
        "collapsed": false
      },
      "cell_type": "code",
      "source": "%%run2in3\n\nprint 'hi'",
      "execution_count": 4,
      "outputs": [
        {
          "name": "stdout",
          "output_type": "stream",
          "text": "hi\n"
        }
      ]
    },
    {
      "metadata": {
        "trusted": true,
        "collapsed": false
      },
      "cell_type": "code",
      "source": "%whos",
      "execution_count": 5,
      "outputs": [
        {
          "name": "stdout",
          "output_type": "stream",
          "text": "Variable          Type               Data/Info\n----------------------------------------------\nFormatCode        function           <function FormatCode at 0x000001CB179A5840>\nlib2to3           module             <module 'lib2to3' from 'C<...>b\\\\lib2to3\\\\__init__.py'>\nrefactor_cell     function           <function refactor_cell at 0x000001CB18BC9F28>\nrefactoringTool   RefactoringTool    <lib2to3.refactor.Refacto<...>ct at 0x000001CB18C43278>\nrun2in3           function           <function run2in3 at 0x000001CB18BC9730>\n"
        }
      ]
    }
  ],
  "metadata": {
    "kernelspec": {
      "name": "python3",
      "display_name": "Python [default]",
      "language": "python"
    },
    "anaconda-cloud": {},
    "gist": {
      "id": "",
      "data": {
        "description": "Jupyter notebook that shows cell magic to run python2 code in python3 kernel",
        "public": true
      }
    },
    "language_info": {
      "name": "python",
      "pygments_lexer": "ipython3",
      "version": "3.5.2",
      "codemirror_mode": {
        "name": "ipython",
        "version": 3
      },
      "nbconvert_exporter": "python",
      "mimetype": "text/x-python",
      "file_extension": ".py"
    },
    "toc": {
      "threshold": 4,
      "number_sections": true,
      "toc_cell": true,
      "toc_window_display": false,
      "toc_section_display": "block",
      "sideBar": true,
      "navigate_menu": true,
      "nav_menu": {
        "height": "12px",
        "width": "252px"
      }
    }
  },
  "nbformat": 4,
  "nbformat_minor": 1
}