在python中通过api上传到Google Drive后如何获取链接?

这里我使用谷歌驱动器API与python上传文件到谷歌驱动器,我如何才能得到上传文件的链接。

我试过了 print (res['exportLinks'])

KeyError:“导出链接”

#!/usr/bin/env python

from __future__ import print_function
import os

from apiclient import discovery
from httplib2 import Http
from oauth2client import file, client, tools

SCOPES = 'https://www.googleapis.com/auth/drive'
store = file.Storage('storage.json')
creds = store.get()
if not creds or creds.invalid:
    flow = client.flow_from_clientsecrets('client_secrets.json', SCOPES)
    creds = tools.run_flow(flow, store)
DRIVE = discovery.build('drive', 'v2', http=creds.authorize(Http()))

FILES = (('hello.txt', False),)

for filename, convert in FILES:
    metadata = {'title': filename}
    res = DRIVE.files().insert(convert=convert, body=metadata,
            media_body=filename, fields='mimeType,exportLinks').execute()
    if res:
        print (res['exportLinks'])

有没有其他方法可以做到这一点。

提前谢谢。