如何在python中从内存中的Google Drive读取(流)文件？

pip install google-api-python-client google-auth-httplib2 google-auth-oauthlib

from google.colab import auth
from google.auth.transport.requests import Request
from google.oauth2.credentials import Credentials

# 如果修改这些范围，请删除token.json。
SCOPES = ['https://www.googleapis.com/auth/drive.readonly']

# 认证并获取访问令牌
creds = None
if os.path.exists('token.json'):
    creds = Credentials.from_authorized_user_file('token.json', SCOPES)
if not creds or not creds.valid:
    if creds and creds.expired and creds.refresh_token:
        creds.refresh(Request())
    else:
        flow = InstalledAppFlow.from_client_secrets_file('credentials.json', SCOPES)
        creds = flow.run_local_server(port=0)
    with open('token.json', 'w') as token:
        token.write(creds.to_json())

from googleapiclient.discovery import build

def get_file_from_drive(file_id):
    service = build('drive', 'v3', credentials=creds)
    file = service.files().get(fileId=file_id, fields='name, webContentLink').execute()
    download_url = file.get('webContentLink')
    return download_url

file_id = "your_file_id_here"  # 更改为您要读取的文件ID
download_url = get_file_from_drive(file_id)

# 使用requests库下载文件
import requests

response = requests.get(download_url)
if response.status_code == 200:
    content = response.content
    # 在这里处理文件内容，例如将其保存到内存中或直接处理
else:
    print("Error downloading file:", response.status_code)

with open("your_output_file_name.extension", "wb") as f:
    f.write(content)