typeguard NamedTuple support

typeguard issue.ipynb

{
  "cells": [
    {
      "metadata": {
        "ExecuteTime": {
          "start_time": "2016-12-02T14:41:22.779791",
          "end_time": "2016-12-02T14:41:22.795322"
        },
        "trusted": true,
        "collapsed": false
      },
      "cell_type": "code",
      "source": "import typing\nimport typeguard\ntyping.Tuple\n\n@typeguard.typechecked\ndef foo(bar:typing.Tuple[str, int]):\n    return 'works'  \n\nfoo(tuple(['bob', 1]))",
      "execution_count": 17,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": "'works'"
          },
          "metadata": {},
          "execution_count": 17
        }
      ]
    },
    {
      "metadata": {
        "ExecuteTime": {
          "start_time": "2016-12-02T14:41:35.691504",
          "end_time": "2016-12-02T14:41:35.710468"
        },
        "trusted": true,
        "collapsed": false
      },
      "cell_type": "code",
      "source": "import typing\nimport typeguard\n\nEmployee = typing.NamedTuple(\"Employee\", [(\"name\", str), (\"id\", int)] )\n\n@typeguard.typechecked\ndef foo(bar:typing.Tuple[str, int]):\n    return 'works'  \n\nfoo(Employee('bob', 1))",
      "execution_count": 18,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": "'works'"
          },
          "metadata": {},
          "execution_count": 18
        }
      ]
    },
    {
      "metadata": {
        "run_control": {
          "read_only": false,
          "frozen": false
        },
        "ExecuteTime": {
          "start_time": "2016-12-02T14:41:53.573336",
          "end_time": "2016-12-02T14:41:53.607486"
        },
        "trusted": true,
        "collapsed": false
      },
      "cell_type": "code",
      "source": "import typing\nimport typeguard\n\nEmployee = typing.NamedTuple(\"Employee\", [(\"name\", str), (\"id\", int)] )\n\n@typeguard.typechecked\ndef foo(bar:Employee):\n    return 'works'  \n\nfoo(Employee('bob', 1))",
      "execution_count": 19,
      "outputs": [
        {
          "output_type": "error",
          "ename": "AttributeError",
          "evalue": "type object 'Employee' has no attribute '__tuple_use_ellipsis__'",
          "traceback": [
            "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
            "\u001b[0;31mAttributeError\u001b[0m                            Traceback (most recent call last)",
            "\u001b[0;32m<ipython-input-19-a94667e1e31b>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m()\u001b[0m\n\u001b[1;32m      8\u001b[0m     \u001b[0;32mreturn\u001b[0m \u001b[0;34m'works'\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      9\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m---> 10\u001b[0;31m \u001b[0mfoo\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mEmployee\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m'bob'\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0;36m1\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
            "\u001b[0;32m/home/lewis/git/phd/src/typeguard/typeguard.py\u001b[0m in \u001b[0;36mwrapper\u001b[0;34m(*args, **kwargs)\u001b[0m\n\u001b[1;32m    354\u001b[0m     \u001b[0;32mdef\u001b[0m \u001b[0mwrapper\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m*\u001b[0m\u001b[0margs\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0;34m**\u001b[0m\u001b[0mkwargs\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m    355\u001b[0m         \u001b[0mtypevars_memo\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0;34m{\u001b[0m\u001b[0;34m}\u001b[0m  \u001b[0;31m# type: Dict[TypeVar, type]\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m--> 356\u001b[0;31m         \u001b[0mcheck_argument_types\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mfunc\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0margs\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mkwargs\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mtypevars_memo\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m    357\u001b[0m         \u001b[0mretval\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0mfunc\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m*\u001b[0m\u001b[0margs\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0;34m**\u001b[0m\u001b[0mkwargs\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m    358\u001b[0m         \u001b[0mcheck_return_value_type\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mretval\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mtypevars_memo\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
            "\u001b[0;32m/home/lewis/git/phd/src/typeguard/typeguard.py\u001b[0m in \u001b[0;36mcheck_argument_types\u001b[0;34m(func, args, kwargs, typevars_memo)\u001b[0m\n\u001b[1;32m    315\u001b[0m             \u001b[0mvalue\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0margvalues\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0margname\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m    316\u001b[0m             \u001b[0margname\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0;34m'argument {}'\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mformat\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0margname\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mfunc_name\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m--> 317\u001b[0;31m             \u001b[0mcheck_type\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0margname\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mvalue\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mexpected_type\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mtypevars_memo\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m    318\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m    319\u001b[0m     \u001b[0;32mreturn\u001b[0m \u001b[0;32mTrue\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
            "\u001b[0;32m/home/lewis/git/phd/src/typeguard/typeguard.py\u001b[0m in \u001b[0;36mcheck_type\u001b[0;34m(argname, value, expected_type, typevars_memo)\u001b[0m\n\u001b[1;32m    244\u001b[0m     \u001b[0;32mfor\u001b[0m \u001b[0mtype_\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mchecker_func\u001b[0m \u001b[0;32min\u001b[0m \u001b[0msubclass_type_checkers\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mitems\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m    245\u001b[0m         \u001b[0;32mif\u001b[0m \u001b[0missubclass\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mexpected_type\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mtype_\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m--> 246\u001b[0;31m             \u001b[0mchecker_func\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0margname\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mvalue\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mexpected_type\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mtypevars_memo\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m    247\u001b[0m             \u001b[0;32mreturn\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m    248\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n",
            "\u001b[0;32m/home/lewis/git/phd/src/typeguard/typeguard.py\u001b[0m in \u001b[0;36mcheck_tuple\u001b[0;34m(argname, value, expected_type, typevars_memo)\u001b[0m\n\u001b[1;32m    134\u001b[0m                         format(argname, qualified_name(value)))\n\u001b[1;32m    135\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m--> 136\u001b[0;31m     \u001b[0;32mif\u001b[0m \u001b[0mexpected_type\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0m__tuple_use_ellipsis__\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m    137\u001b[0m         \u001b[0melement_type\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0mexpected_type\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0m__tuple_params__\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0;36m0\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m    138\u001b[0m         \u001b[0;32mfor\u001b[0m \u001b[0mi\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0melement\u001b[0m \u001b[0;32min\u001b[0m \u001b[0menumerate\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mvalue\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
            "\u001b[0;31mAttributeError\u001b[0m: type object 'Employee' has no attribute '__tuple_use_ellipsis__'"
          ]
        }
      ]
    }
  ],
  "metadata": {
    "kernelspec": {
      "name": "python3",
      "display_name": "Python 3",
      "language": "python"
    },
    "hide_input": false,
    "latex_envs": {
      "eqNumInitial": 0,
      "eqLabelWithNumbers": true,
      "current_citInitial": 1,
      "cite_by": "apalike",
      "bibliofile": "biblio.bib"
    },
    "toc": {
      "threshold": 4,
      "number_sections": true,
      "toc_cell": false,
      "toc_window_display": false,
      "toc_section_display": "block",
      "sideBar": true,
      "navigate_menu": true,
      "nav_menu": {
        "width": "252px",
        "height": "12px"
      }
    },
    "language_info": {
      "name": "python",
      "nbconvert_exporter": "python",
      "pygments_lexer": "ipython3",
      "codemirror_mode": {
        "name": "ipython",
        "version": 3
      },
      "file_extension": ".py",
      "version": "3.5.2",
      "mimetype": "text/x-python"
    },
    "gist": {
      "id": "",
      "data": {
        "description": "typeguard NamedTuple support",
        "public": true
      }
    }
  },
  "nbformat": 4,
  "nbformat_minor": 1
}