[嗨，我正在尝试使用python从我的Google驱动器文件夹中下载文件。我从How to download specific Google Drive folder using Python?尝试了以下脚本，它对我有用，但是我在Google驱动器文件夹中有很多文件，并且想跳过已经下载到计算机中的文件。我是否可以知道是否有可能？
from __future__ import print_function
import pickle
import os
from googleapiclient.discovery import build
from google_auth_oauthlib.flow import InstalledAppFlow
from google.auth.transport.requests import Request
from oauth2client import client
from oauth2client import tools
from oauth2client.file import Storage
from apiclient.http import MediaFileUpload, MediaIoBaseDownload
import io
from apiclient import errors
from apiclient import http
import logging
from apiclient import discovery
# If modifying these scopes, delete the file token.pickle.
SCOPES = ['https://www.googleapis.com/auth/drive']
# To list folders
def listfolders(service, filid, des):
results = service.files().list(
pageSize=1000, q="\'" + filid + "\'" + " in parents",
fields="nextPageToken, files(id, name, mimeType)").execute()
# logging.debug(folder)
folder = results.get('files', [])
for item in folder:
if str(item['mimeType']) == str('application/vnd.google-apps.folder'):
if not os.path.isdir(des+"/"+item['name']):
os.mkdir(path=des+"/"+item['name'])
print(item['name'])
listfolders(service, item['id'], des+"/"+item['name']) # LOOP un-till the files are found
else:
downloadfiles(service, item['id'], item['name'], des)
print(item['name'])
return folder
# To Download Files
def downloadfiles(service, dowid, name,dfilespath):
request = service.files().get_media(fileId=dowid)
fh = io.BytesIO()
downloader = MediaIoBaseDownload(fh, request)
done = False
while done is False:
status, done = downloader.next_chunk()
print("Download %d%%." % int(status.progress() * 100))
with io.open(dfilespath + "/" + name, 'wb') as f:
fh.seek(0)
f.write(fh.read())
def main():
"""Shows basic usage of the Drive v3 API.
Prints the names and ids of the first 10 files the user has access to.
"""
creds = None
# The file token.pickle stores the user's access and refresh tokens, and is
# created automatically when the authorization flow completes for the first
# time.
if os.path.exists('token.pickle'):
with open('token.pickle', 'rb') as token:
creds = pickle.load(token)
# If there are no (valid) credentials available, let the user log in.
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) # credentials.json download from drive API
creds = flow.run_local_server()
# Save the credentials for the next run
with open('token.pickle', 'wb') as token:
pickle.dump(creds, token)
service = build('drive', 'v3', credentials=creds)
# Call the Drive v3 API
Folder_id = "'PAST YOUR SHARED FOLDER ID'" # Enter The Downloadable folder ID From Shared Link
results = service.files().list(
pageSize=1000, q=Folder_id+" in parents", fields="nextPageToken, files(id, name, mimeType)").execute()
items = results.get('files', [])
if not items:
print('No files found.')
else:
print('Files:')
for item in items:
if item['mimeType'] == 'application/vnd.google-apps.folder':
if not os.path.isdir("Folder"):
os.mkdir("Folder")
bfolderpath = os.getcwd()+"/Folder/"
if not os.path.isdir(bfolderpath+item['name']):
os.mkdir(bfolderpath+item['name'])
folderpath = bfolderpath+item['name']
listfolders(service, item['id'], folderpath)
else:
if not os.path.isdir("Folder"):
os.mkdir("Folder")
bfolderpath = os.getcwd()+"/Folder/"
if not os.path.isdir(bfolderpath + item['name']):
os.mkdir(bfolderpath + item['name'])
filepath = bfolderpath + item['name']
downloadfiles(service, item['id'], item['name'], filepath)
if __name__ == '__main__':
main()
这将花费很长的时间，因为每次下载文件时，脚本都必须遍历整个计算机以查看是否存在匹配项，这意味着不仅要检查文件名，还要检查它们的数据（如果您想要拥有相同名称的两个不同文件）。
我已经尝试修改下面的部分及其作品！谢谢大家的光临〜
def main():
"""Shows basic usage of the Drive v3 API.
Prints the names and ids of the first 10 files the user has access to.
"""
creds = None
# The file token.pickle stores the user's access and refresh tokens, and is
# created automatically when the authorization flow completes for the first
# time.
if os.path.exists('token.pickle'):
with open('token.pickle', 'rb') as token:
creds = pickle.load(token)
# If there are no (valid) credentials available, let the user log in.
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) # credentials.json download from drive API
creds = flow.run_local_server()
# Save the credentials for the next run
with open('token.pickle', 'wb') as token:
pickle.dump(creds, token)
service = build('drive', 'v3', credentials=creds)
# Call the Drive v3 API
Folder_id = "'PAST YOUR SHARED FOLDER ID'" # Enter The Downloadable folder ID From Shared Link
results = service.files().list(
pageSize=1000, q=Folder_id+" in parents", fields="nextPageToken, files(id, name, mimeType)").execute()
items = results.get('files', [])
if not items:
print('No files found.')
else:
print('Files:')
for item in items:
if not os.path.isdir(File_Download_Path):
os.mkdir(File_Download_Path)
if not item['name'] in os.listdir(File_Download_Path):
downloadfiles(service, item['id'], item['name'], File_Download_Path)
print("All files are downloaded.")
if __name__ == '__main__':
main()