{
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  {
   "cell_type": "markdown",
   "id": "9458f935",
   "metadata": {},
   "source": [
    "# 15-23 · Большие файлы и потоковая обработка\n",
    "\n",
    "Практика к разделу [«Большие файлы и потоковая обработка»](../../site/chapters/glava-15/15-23-bolshie-fajly-i-potoki.html)."
   ]
  },
  {
   "cell_type": "markdown",
   "id": "7b36a3d9",
   "metadata": {},
   "source": [
    "## Подготовка"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "ae1af173",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2026-08-18T15:53:06.007923Z",
     "iopub.status.busy": "2026-08-18T15:53:06.007820Z",
     "iopub.status.idle": "2026-08-18T15:53:06.028125Z",
     "shell.execute_reply": "2026-08-18T15:53:06.027657Z"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Готово.\n"
     ]
    }
   ],
   "source": [
    "from pathlib import Path\n",
    "\n",
    "text_for_analysis = \"первая строка\\nвторая строка чуть длиннее\\nтретья\\n\"\n",
    "Path(\"analiz2.txt\").write_text(text_for_analysis, encoding=\"utf-8\")\n",
    "print(\"Готово.\")"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "30375f59",
   "metadata": {},
   "source": [
    "## Рабочий пример — мини-проект: анализатор текстового файла"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "a268e309",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2026-08-18T15:53:06.029309Z",
     "iopub.status.busy": "2026-08-18T15:53:06.029196Z",
     "iopub.status.idle": "2026-08-18T15:53:06.032161Z",
     "shell.execute_reply": "2026-08-18T15:53:06.031739Z"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{'строки': 3, 'слова': 7, 'символы': 48}\n"
     ]
    }
   ],
   "source": [
    "from pathlib import Path\n",
    "\n",
    "def analiz_fajla(path):\n",
    "    stroki = 0\n",
    "    slova = 0\n",
    "    simvoly = 0\n",
    "    with path.open(\"r\", encoding=\"utf-8\") as f:\n",
    "        for line in f:\n",
    "            stroki += 1\n",
    "            slova += len(line.split())\n",
    "            simvoly += len(line)\n",
    "    return {\"строки\": stroki, \"слова\": slova, \"символы\": simvoly}\n",
    "\n",
    "result = analiz_fajla(Path(\"analiz2.txt\"))\n",
    "print(result)"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "023f4f45",
   "metadata": {},
   "source": [
    "## Задание ★ Базовая практика\n",
    "\n",
    "Добавьте к отчёту размер файла в байтах через stat().st_size."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "id": "8dc69017",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2026-08-18T15:53:06.033066Z",
     "iopub.status.busy": "2026-08-18T15:53:06.032966Z",
     "iopub.status.idle": "2026-08-18T15:53:06.035012Z",
     "shell.execute_reply": "2026-08-18T15:53:06.034672Z"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "89\n"
     ]
    }
   ],
   "source": [
    "from pathlib import Path\n",
    "\n",
    "razmer_v_baytah = Path(\"analiz2.txt\").stat().st_size\n",
    "print(razmer_v_baytah)"
   ]
  }
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