text 带有Colaboratory Jupyter笔记本的Google Drive文件I / O.

Posted 2021-04-30

# Google Drive file I/O with Colab Jupyter notebooks
A minimal working example.

## Instructions

1. Place the Jupyter notebook in your Google Drive.
1. In Google Drive in your web browser, open the Jupyter notebook with Colaboratory.
1. Run the cells in this notebook to mount the drive and practice reading & writing files.

## Notes

- In this example, `input.txt` is a file in the top-level directory of my Google Drive.
- You can append sub-directories to the path as needed. E.g. to access a file in a directory called `my_project`, use the path `/content/gdrive/My Drive/my_project/`.

{
  "nbformat": 4,
  "nbformat_minor": 0,
  "metadata": {
    "colab": {
      "name": "fileIO.ipynb",
      "version": "0.3.2",
      "provenance": [],
      "collapsed_sections": [],
      "include_colab_link": true
    },
    "kernelspec": {
      "name": "python3",
      "display_name": "Python 3"
    }
  },
  "cells": [
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "view-in-github",
        "colab_type": "text"
      },
      "source": [
        "<a href=\"https://colab.research.google.com/gist/kelly-sovacool/c33b64b70164be37d75bd40c9b56b498/fileio.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
      ]
    },
    {
      "metadata": {
        "id": "T9beHHWTa3Bi",
        "colab_type": "text"
      },
      "cell_type": "markdown",
      "source": [
        "# Google Drive file I/O with Google Colaboratory\n",
        "\n",
        "Instructions for accessing external data: https://colab.research.google.com/notebooks/io.ipynb#scrollTo=RWSJpsyKqHjH\n"
      ]
    },
    {
      "metadata": {
        "id": "bZSx-Wviar8P",
        "colab_type": "code",
        "outputId": "831e90d1-027d-4500-9184-417f054f7497",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 122
        }
      },
      "cell_type": "code",
      "source": [
        "# mount Google Drive\n",
        "from google.colab import drive\n",
        "drive.mount('/content/gdrive')"
      ],
      "execution_count": 0,
      "outputs": [
        {
          "output_type": "stream",
          "text": [
            "Go to this URL in a browser: https://accounts.google.com/o/oauth2/auth?client_id=947318989803-6bn6qk8qdgf4n4g3pfee6491hc0brc4i.apps.googleusercontent.com&redirect_uri=urn%3Aietf%3Awg%3Aoauth%3A2.0%3Aoob&scope=email%20https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fdocs.test%20https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fdrive%20https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fdrive.photos.readonly%20https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fpeopleapi.readonly&response_type=code\n",
            "\n",
            "Enter your authorization code:\n",
            "··········\n",
            "Mounted at /content/gdrive\n"
          ],
          "name": "stdout"
        }
      ]
    },
    {
      "metadata": {
        "id": "aqE3_P9JbM8A",
        "colab_type": "code",
        "outputId": "189a9aa9-5c6c-4b31-a609-9638dcde01fb",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 51
        }
      },
      "cell_type": "code",
      "source": [
        "# read a file\n",
        "gdrive_path = '/content/gdrive/My Drive/'\n",
        "with open(f'{gdrive_path}input.txt', 'r') as file:\n",
        "  for line in file:\n",
        "    print(line)"
      ],
      "execution_count": 0,
      "outputs": [
        {
          "output_type": "stream",
          "text": [
            "testing google colab file reading\n",
            "\n"
          ],
          "name": "stdout"
        }
      ]
    },
    {
      "metadata": {
        "id": "a4CZ84vvbRcJ",
        "colab_type": "code",
        "outputId": "4d1951b0-8309-47a0-d6e5-3568be72c163",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 34
        }
      },
      "cell_type": "code",
      "source": [
        "# write a file\n",
        "with open(f'{gdrive_path}output.txt', 'w') as file:\n",
        "  file.write('Hello Google Drive!')\n",
        "!cat /content/gdrive/My\\ Drive/output.txt"
      ],
      "execution_count": 0,
      "outputs": [
        {
          "output_type": "stream",
          "text": [
            "Hello Google Drive!"
          ],
          "name": "stdout"
        }
      ]
    }
  ]
}

testing google colab file reading