python 脚本传入参数.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# sys.argv"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {
    "ExecuteTime": {
     "end_time": "2019-05-21T06:07:46.804023Z",
     "start_time": "2019-05-21T06:07:46.799038Z"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "-f\n",
      "C:\\Users\\Administrator\\AppData\\Roaming\\jupyter\\runtime\\kernel-517707b9-527b-46ae-96bd-04c30739eb57.json\n"
     ]
    }
   ],
   "source": [
    "import sys\n",
    "gpus = sys.argv[1]\n",
    "#gpus = [int(gpus.split(','))]\n",
    "batch_size = sys.argv[2]\n",
    "print(gpus)\n",
    "print(batch_size)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {
    "ExecuteTime": {
     "end_time": "2019-05-21T06:07:47.258358Z",
     "start_time": "2019-05-21T06:07:47.254343Z"
    }
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['D:\\\\ProgramData\\\\Anaconda3\\\\envs\\\\normal\\\\lib\\\\site-packages\\\\ipykernel_launcher.py',\n",
       " '-f',\n",
       " 'C:\\\\Users\\\\Administrator\\\\AppData\\\\Roaming\\\\jupyter\\\\runtime\\\\kernel-517707b9-527b-46ae-96bd-04c30739eb57.json']"
      ]
     },
     "execution_count": 2,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "sys.argv"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# argparse\n",
    "[argparse](https://docs.python.org/zh-cn/3.7/library/argparse.html)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {
    "ExecuteTime": {
     "end_time": "2019-05-21T06:07:48.123079Z",
     "start_time": "2019-05-21T06:07:48.112131Z"
    }
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "_StoreAction(option_strings=['-gpus'], dest='gpus', nargs=None, const=None, default=None, type=<class 'str'>, choices=None, help=None, metavar=None)"
      ]
     },
     "execution_count": 3,
     "metadata": {},
     "output_type": "execute_result"
    },
    {
     "data": {
      "text/plain": [
       "_StoreAction(option_strings=['--batch-size'], dest='batch_size', nargs=None, const=None, default=32, type=<class 'int'>, choices=None, help=None, metavar=None)"
      ]
     },
     "execution_count": 3,
     "metadata": {},
     "output_type": "execute_result"
    },
    {
     "name": "stderr",
     "output_type": "stream",
     "text": [
      "usage: ipykernel_launcher.py [-h] [-gpus GPUS] [--batch-size BATCH_SIZE]\n",
      "ipykernel_launcher.py: error: unrecognized arguments: -f C:\\Users\\Administrator\\AppData\\Roaming\\jupyter\\runtime\\kernel-517707b9-527b-46ae-96bd-04c30739eb57.json\n"
     ]
    },
    {
     "ename": "SystemExit",
     "evalue": "2",
     "output_type": "error",
     "traceback": [
      "An exception has occurred, use %tb to see the full traceback.\n",
      "\u001b[1;31mSystemExit\u001b[0m\u001b[1;31m:\u001b[0m 2\n"
     ]
    },
    {
     "name": "stderr",
     "output_type": "stream",
     "text": [
      "D:\\ProgramData\\Anaconda3\\envs\\normal\\lib\\site-packages\\IPython\\core\\interactiveshell.py:2870: UserWarning: To exit: use 'exit', 'quit', or Ctrl-D.\n",
      "  warn(\"To exit: use 'exit', 'quit', or Ctrl-D.\", stacklevel=1)\n"
     ]
    }
   ],
   "source": [
    "import argparse\n",
    "parser = argparse.ArgumentParser(description='manual to this script')\n",
    "parser.add_argument('-gpus', type=str, default = None)\n",
    "parser.add_argument('--batch-size', type=int, default=32)\n",
    "args = parser.parse_args()\n",
    "print(args.gpus)\n",
    "print(args.batch_size)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
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   "display_name": "Python 3",
   "language": "python",
   "name": "python3"
  },
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   "codemirror_mode": {
    "name": "ipython",
    "version": 3
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   "mimetype": "text/x-python",
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   "targetLang": "fr",
   "useGoogleTranslate": true
  },
  "toc": {
   "base_numbering": 1,
   "nav_menu": {},
   "number_sections": true,
   "sideBar": true,
   "skip_h1_title": false,
   "title_cell": "Table of Contents",
   "title_sidebar": "Contents",
   "toc_cell": false,
   "toc_position": {},
   "toc_section_display": true,
   "toc_window_display": false
  },
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   "kernels_config": {
    "python": {
     "delete_cmd_postfix": "",
     "delete_cmd_prefix": "del ",
     "library": "var_list.py",
     "varRefreshCmd": "print(var_dic_list())"
    },
    "r": {
     "delete_cmd_postfix": ") ",
     "delete_cmd_prefix": "rm(",
     "library": "var_list.r",
     "varRefreshCmd": "cat(var_dic_list()) "
    }
   },
   "types_to_exclude": [
    "module",
    "function",
    "builtin_function_or_method",
    "instance",
    "_Feature"
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   "window_display": false
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