Google colaboratory 从google drive下载文件到colaboratory

我正试图从我的谷歌硬盘下载文件到colaboratory

file_id = '1uBtlaggVyWshwcyP6kEI-y_W3P8D26sz'

import io
from googleapiclient.http import MediaIoBaseDownload

request = drive_service.files().get_media(fileId=file_id)
downloaded = io.BytesIO()
downloader = MediaIoBaseDownload(downloaded, request)
done = False
while done is False:
  # _ is a placeholder for a progress object that we ignore.
  # (Our file is small, so we skip reporting progress.)
  _, done = downloader.next_chunk()

downloaded.seek(0)
print('Downloaded file contents are: {}'.format(downloaded.read()))

这样做会导致以下错误：

NameError: name 'drive_service' is not defined

---

如何删除此错误？

您需要定义一个驱动器API服务客户端以与Google驱动器API交互，例如：

from googleapiclient.discovery import build
drive_service = build('drive', 'v3')

---

（参见笔记本）

我建议您使用Pydrive从google drive下载文件。我下载500MB的数据集供5s使用。 1.安装Pydrive

!pip install PyDrive

二,。奥思

from pydrive.auth import GoogleAuth
from pydrive.drive import GoogleDrive

gauth = GoogleAuth()
gauth.LocalWebserverAuth()

drive = GoogleDrive(gauth)

三,。从谷歌硬盘下载文件的代码

fileId = drive.CreateFile({'id': 'DRIVE_FILE_ID'}) #DRIVE_FILE_ID is file id example: 1iytA1n2z4go3uVCwE_vIKouTKyIDjEq
print fileId['title']  # UMNIST.zip
fileId.GetContentFile('UMNIST.zip')  # Save Drive file as a local file

---

为圣战欢呼

第一步

!pip install -U -q PyDrive

步骤2

from pydrive.auth import GoogleAuth
from pydrive.drive import GoogleDrive
from google.colab import auth
from oauth2client.client import GoogleCredentials
# Authenticate and create the PyDrive client.
# This only needs to be done once per notebook.
auth.authenticate_user()
gauth = GoogleAuth()
gauth.credentials = GoogleCredentials.get_application_default()
drive = GoogleDrive(gauth)

步骤3

file_id = '17Cp4ZxCYGzWNypZo1WPiIz20x06xgPAt' # URL id. 
downloaded = drive.CreateFile({'id': file_id})
downloaded.GetContentFile('shaurya.txt')

步骤4

!ls #to verify content

或

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您还可以使用我在google.colab和PyDrive上的实现，这样做会更简单

!pip install - U - q PyDrive  
import os  
os.chdir('/content/')  
!git clone https://github.com/ruelj2/Google_drive.git  

from Google_drive.handle import Google_drive  
Gd = Google_drive()  
Gd.load_file(local_dir, file_ID)

---

将文件从google drive下载到colabo笔记本的最简单方法是通过colabo api：

from google.colab import drive
drive.mount('/content/gdrive')

!cp '/content/gdrive/My Drive/<file_path_on_google_drive>' <filename_in_colabo>

从google.colab导入驱动器
安装（“/content/gdrive”）
!cp'/content/gdrive/My Drive/'

备注:

通过drive.mount（），您可以访问google驱动器上的任何文件

“我的驱动器”相当于本地文件系统上的“谷歌驱动器”

文件路径用单引号括起来，因为装载点（“我的驱动器”）下面的标准目录有一个空格，而且您的路径中其他地方也可能有空格

文件浏览器（通过单击左箭头激活）对于定位文件和获取文件路径非常有用。通过它，您可以单击已装入的文件夹结构并复制文件路径，请参见下图

---

这里有一个简单的方法。您可以使用Python中的wget命令或requests模块来完成工作

# find the share link of the file/folder on Google Drive
file_share_link = "https://drive.google.com/open?id=0B_URf9ZWjAW7SC11Xzc4R2d0N2c"

# extract the ID of the file
file_id = file_share_link[file_share_link.find("=") + 1:]

# append the id to this REST command
file_download_link = "https://docs.google.com/uc?export=download&id=" + file_id 

文件下载链接中的字符串可以粘贴到浏览器地址栏中，直接进入下载对话框

如果使用wget命令：

!wget -O ebook.pdf --no-check-certificate "$file_download_link"

不安装/导入任何库。把你的文件id放在最后

!gdown --id yourFileIdHere

注意：在编写本文时，gdown库是预先安装在colab上的

!gdown --id yourFileIdHere