write_to_file.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Запись данных в файл"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "metadata": {},
   "outputs": [],
   "source": [
    "file_obj = open('file_to_write_in.txt', 'w')\n",
    "string = 'строка для записи в файл \\n'\n",
    "file_obj.write(string)\n",
    "file_obj.close()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "строка для записи в файл"
     ]
    }
   ],
   "source": [
    "!cat file_to_write_in.txt"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 12,
   "metadata": {},
   "outputs": [],
   "source": [
    "file_obj = open('file_to_write_in.txt', 'w')\n",
    "second_writing = 'вторая строчка для записи \\n'\n",
    "file_obj.write(second_writing)\n",
    "file_obj.close()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "вторая строчка для записи \r\n"
     ]
    }
   ],
   "source": [
    "!cat file_to_write_in.txt"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 14,
   "metadata": {},
   "outputs": [],
   "source": [
    "file_obj = open('file_to_write_in.txt', 'a')\n",
    "third_string = 'третья строка для записи в файл \\n'\n",
    "file_obj.write(third_string)\n",
    "file_obj.close()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 15,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "вторая строчка для записи \r\n",
      "третья строка для записи в файл \r\n"
     ]
    }
   ],
   "source": [
    "!cat file_to_write_in.txt"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 23,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]"
      ]
     },
     "execution_count": 23,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "digits = range(1, 11)\n",
    "digits"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 25,
   "metadata": {},
   "outputs": [
    {
     "ename": "SyntaxError",
     "evalue": "invalid syntax (<ipython-input-25-4d20bed6a970>, line 2)",
     "output_type": "error",
     "traceback": [
      "\u001b[0;36m  File \u001b[0;32m\"<ipython-input-25-4d20bed6a970>\"\u001b[0;36m, line \u001b[0;32m2\u001b[0m\n\u001b[0;31m    file_obj.writelines[digit + '\\n' for digit in map(str, digits)]\u001b[0m\n\u001b[0m                                       ^\u001b[0m\n\u001b[0;31mSyntaxError\u001b[0m\u001b[0;31m:\u001b[0m invalid syntax\n"
     ]
    }
   ],
   "source": [
    "with open('second_file_to_write_in.txt', 'w') as file_obj:\n",
    "    file_obj.writelines[digit + '\\n' for digit in map(str, digits)]    "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 2",
   "language": "python",
   "name": "python2"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 2
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython2",
   "version": "2.7.15"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 2
}