如何用Python上传本地文件夹至Google Drive？权限问题求助

问题说明 #

需要将包含子文件夹与文件层级结构的本地文件夹（示例路径：C:\Users\test\Documents\google drvie\test\upload）上传至Google Drive，但现有PyDrive脚本仅能上传文件，上传文件夹时触发PermissionError权限拒绝错误。

报错信息 #

GoogleDriveFile({'parents': [{'id': '1J8TXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX'}], 'title': 'upload'})
Traceback (most recent call last):
  File "c:\Users\test\Documents\google drvie\googledrive_file_up.py", line 43, in <module>
    f.SetContentFile(os.path.join(path,x))
  File "C:\Users\test\AppData\Roaming\Python\Python39\site-packages\pydrive\files.py", line 169, in SetContentFile
    self.content = open(filename, 'rb')
PermissionError: [Errno 13] Permission denied: 'C:\\Users\\test\\Documents\\google drvie\\test\\upload'

现有代码 #

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

import os

#Authenticate Google services
gauth = GoogleAuth()

# load credentials or create empty credentials if none exist
gauth.LoadCredentialsFile("mycreds.txt")

#If you don't have Google service credentials
if gauth.credentials is None:
     #Automatically receive authorization code from user and configure local web server
     gauth.LocalWebserverAuth()
# if the access token does not exist or has expired
elif gauth.access_token_expired:
     #refresh authorization for google services
     gauth.Refresh()
# if none match
else:
     #Authorize Google services
     gauth.Authorize()
# save credentials to file in txt format
gauth.SaveCredentialsFile("mycreds.txt")
       
#Authentication process for Google Drive
drive = GoogleDrive(gauth)

# specify folder path to upload
path = r'C:\Users\test\Documents\google drvie\test'
# File ID to upload to GOOGLE DRIVE
folder_id='1J8TXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX'
#Loop processing (repeated processing) by for statement
for x in os.listdir(path):
     # Create GoogleDriveFile object
     #f = drive.CreateFile({'title' : x})
     f = drive.CreateFile({"parents": [{"id": folder_id},]})
     #file title
     f['title'] = x
     # set local file and upload
     print(f)
     f.SetContentFile(os.path.join(path,x))
     print(f)
     #Upload to Google Drive
     f.Upload()
     print(f)

     f = None

解决方案 #

错误根源是os.listdir()会同时列出文件和文件夹，而SetContentFile()只能处理文件，尝试打开文件夹会触发权限拒绝。需要递归遍历本地文件夹结构，区分文件和文件夹分别处理：

修改后完整代码 #

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

# 认证Google服务
gauth = GoogleAuth()
gauth.LoadCredentialsFile("mycreds.txt")

if gauth.credentials is None:
    gauth.LocalWebserverAuth()
elif gauth.access_token_expired:
    gauth.Refresh()
else:
    gauth.Authorize()
gauth.SaveCredentialsFile("mycreds.txt")

drive = GoogleDrive(gauth)

def upload_local_folder(local_path, parent_drive_id):
    # 遍历当前本地路径下的所有内容
    for item_name in os.listdir(local_path):
        item_full_path = os.path.join(local_path, item_name)
        
        if os.path.isfile(item_full_path):
            # 处理文件：上传到指定Google Drive文件夹
            file = drive.CreateFile({
                'parents': [{'id': parent_drive_id}],
                'title': item_name
            })
            file.SetContentFile(item_full_path)
            file.Upload()
            print(f"已上传文件: {item_name}")
            file = None
        elif os.path.isdir(item_full_path):
            # 处理文件夹：先在Google Drive创建同名文件夹，再递归上传内部内容
            folder = drive.CreateFile({
                'parents': [{'id': parent_drive_id}],
                'title': item_name,
                'mimeType': 'application/vnd.google-apps.folder'
            })
            folder.Upload()
            new_folder_id = folder['id']
            print(f"已创建文件夹: {item_name}，开始上传内部内容")
            # 递归上传子文件夹内容
            upload_local_folder(item_full_path, new_folder_id)
            folder = None

# 配置上传参数
local_root_path = r'C:\Users\test\Documents\google drvie\test'
target_drive_folder_id = '1J8TXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX'

# 启动上传
upload_local_folder(local_root_path, target_drive_folder_id)
print("上传完成")

关键修改说明 #

• 新增递归函数upload_local_folder，实现层级遍历上传
• 通过os.path.isfile和os.path.isdir区分文件与文件夹
• 创建Google Drive文件夹时，必须指定mimeType为application/vnd.google-apps.folder，否则会被识别为普通文件
• 递归调用时，将新创建的文件夹ID作为父ID传入，保证层级结构一致

内容的提问来源于stack exchange，提问作者user55416