{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [],
   "source": [
    "# 可从video url中快速取出字幕文本信息"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {},
   "outputs": [],
   "source": [
    "from langchain.document_loaders.bilibili import BiliBiliLoader"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {},
   "outputs": [],
   "source": [
    "loader = BiliBiliLoader(\n",
    "    [\"https://www.bilibili.com/video/BV1DP411m7TR/\"]\n",
    ")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "metadata": {},
   "outputs": [
    {
     "ename": "RuntimeError",
     "evalue": "This event loop is already running",
     "output_type": "error",
     "traceback": [
      "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[0;31mRuntimeError\u001b[0m                              Traceback (most recent call last)",
      "Cell \u001b[0;32mIn[8], line 1\u001b[0m\n\u001b[0;32m----> 1\u001b[0m loader\u001b[39m.\u001b[39;49mload()\n",
      "File \u001b[0;32m~/anaconda3/lib/python3.10/site-packages/langchain/document_loaders/bilibili.py:23\u001b[0m, in \u001b[0;36mBiliBiliLoader.load\u001b[0;34m(self)\u001b[0m\n\u001b[1;32m     21\u001b[0m results \u001b[39m=\u001b[39m []\n\u001b[1;32m     22\u001b[0m \u001b[39mfor\u001b[39;00m url \u001b[39min\u001b[39;00m \u001b[39mself\u001b[39m\u001b[39m.\u001b[39mvideo_urls:\n\u001b[0;32m---> 23\u001b[0m     transcript, video_info \u001b[39m=\u001b[39m \u001b[39mself\u001b[39;49m\u001b[39m.\u001b[39;49m_get_bilibili_subs_and_info(url)\n\u001b[1;32m     24\u001b[0m     doc \u001b[39m=\u001b[39m Document(page_content\u001b[39m=\u001b[39mtranscript, metadata\u001b[39m=\u001b[39mvideo_info)\n\u001b[1;32m     25\u001b[0m     results\u001b[39m.\u001b[39mappend(doc)\n",
      "File \u001b[0;32m~/anaconda3/lib/python3.10/site-packages/langchain/document_loaders/bilibili.py:51\u001b[0m, in \u001b[0;36mBiliBiliLoader._get_bilibili_subs_and_info\u001b[0;34m(self, url)\u001b[0m\n\u001b[1;32m     48\u001b[0m     \u001b[39melse\u001b[39;00m:\n\u001b[1;32m     49\u001b[0m         \u001b[39mraise\u001b[39;00m \u001b[39mValueError\u001b[39;00m(\u001b[39mf\u001b[39m\u001b[39m\"\u001b[39m\u001b[39m{\u001b[39;00murl\u001b[39m}\u001b[39;00m\u001b[39m is not bilibili url.\u001b[39m\u001b[39m\"\u001b[39m)\n\u001b[0;32m---> 51\u001b[0m video_info \u001b[39m=\u001b[39m sync(v\u001b[39m.\u001b[39;49mget_info())\n\u001b[1;32m     52\u001b[0m video_info\u001b[39m.\u001b[39mupdate({\u001b[39m\"\u001b[39m\u001b[39murl\u001b[39m\u001b[39m\"\u001b[39m: url})\n\u001b[1;32m     54\u001b[0m \u001b[39m# Get subtitle url\u001b[39;00m\n",
      "File \u001b[0;32m~/anaconda3/lib/python3.10/site-packages/bilibili_api/utils/sync.py:24\u001b[0m, in \u001b[0;36msync\u001b[0;34m(coroutine)\u001b[0m\n\u001b[1;32m     22\u001b[0m __ensure_event_loop()\n\u001b[1;32m     23\u001b[0m loop \u001b[39m=\u001b[39m asyncio\u001b[39m.\u001b[39mget_event_loop()\n\u001b[0;32m---> 24\u001b[0m \u001b[39mreturn\u001b[39;00m loop\u001b[39m.\u001b[39;49mrun_until_complete(coroutine)\n",
      "File \u001b[0;32m~/anaconda3/lib/python3.10/asyncio/base_events.py:625\u001b[0m, in \u001b[0;36mBaseEventLoop.run_until_complete\u001b[0;34m(self, future)\u001b[0m\n\u001b[1;32m    614\u001b[0m \u001b[39m\u001b[39m\u001b[39m\"\"\"Run until the Future is done.\u001b[39;00m\n\u001b[1;32m    615\u001b[0m \n\u001b[1;32m    616\u001b[0m \u001b[39mIf the argument is a coroutine, it is wrapped in a Task.\u001b[39;00m\n\u001b[0;32m   (...)\u001b[0m\n\u001b[1;32m    622\u001b[0m \u001b[39mReturn the Future's result, or raise its exception.\u001b[39;00m\n\u001b[1;32m    623\u001b[0m \u001b[39m\"\"\"\u001b[39;00m\n\u001b[1;32m    624\u001b[0m \u001b[39mself\u001b[39m\u001b[39m.\u001b[39m_check_closed()\n\u001b[0;32m--> 625\u001b[0m \u001b[39mself\u001b[39;49m\u001b[39m.\u001b[39;49m_check_running()\n\u001b[1;32m    627\u001b[0m new_task \u001b[39m=\u001b[39m \u001b[39mnot\u001b[39;00m futures\u001b[39m.\u001b[39misfuture(future)\n\u001b[1;32m    628\u001b[0m future \u001b[39m=\u001b[39m tasks\u001b[39m.\u001b[39mensure_future(future, loop\u001b[39m=\u001b[39m\u001b[39mself\u001b[39m)\n",
      "File \u001b[0;32m~/anaconda3/lib/python3.10/asyncio/base_events.py:584\u001b[0m, in \u001b[0;36mBaseEventLoop._check_running\u001b[0;34m(self)\u001b[0m\n\u001b[1;32m    582\u001b[0m \u001b[39mdef\u001b[39;00m \u001b[39m_check_running\u001b[39m(\u001b[39mself\u001b[39m):\n\u001b[1;32m    583\u001b[0m     \u001b[39mif\u001b[39;00m \u001b[39mself\u001b[39m\u001b[39m.\u001b[39mis_running():\n\u001b[0;32m--> 584\u001b[0m         \u001b[39mraise\u001b[39;00m \u001b[39mRuntimeError\u001b[39;00m(\u001b[39m'\u001b[39m\u001b[39mThis event loop is already running\u001b[39m\u001b[39m'\u001b[39m)\n\u001b[1;32m    585\u001b[0m     \u001b[39mif\u001b[39;00m events\u001b[39m.\u001b[39m_get_running_loop() \u001b[39mis\u001b[39;00m \u001b[39mnot\u001b[39;00m \u001b[39mNone\u001b[39;00m:\n\u001b[1;32m    586\u001b[0m         \u001b[39mraise\u001b[39;00m \u001b[39mRuntimeError\u001b[39;00m(\n\u001b[1;32m    587\u001b[0m             \u001b[39m'\u001b[39m\u001b[39mCannot run the event loop while another loop is running\u001b[39m\u001b[39m'\u001b[39m)\n",
      "\u001b[0;31mRuntimeError\u001b[0m: This event loop is already running"
     ]
    }
   ],
   "source": [
    "loader.load()"
   ]
  }
 ],
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