我认为您的问题是，在致电

I think you're problem is that your not authorising your credentials before making the call to the Calendar API but there is a couple of differences that you have that I use in my own implementation

• 使用以下导入语句from oauth2client.service_account import ServiceAccountCredentials和from apiclient import discovery
• 使用from_json_keyfile_name方法
• 授权凭据，并在构建服务时将其作为http参数传递

• Use the following import statements from oauth2client.service_account import ServiceAccountCredentials and from apiclient import discovery
• Use the from_json_keyfile_name method
• Authorize the credentials and pass it as a http argument when building the service

尝试对您的代码进行此修改:

Try this modification to your code:

from apiclient import discovery
from oauth2client.service_account import ServiceAccountCredentials
import httplib2

SCOPES = ['https://www.googleapis.com/auth/calendar']
SERVICE_ACCOUNT_FILE = 'GOOGLE_SECRET.json'

credentials = ServiceAccountCredentials.from_json_keyfile_name(
        SERVICE_ACCOUNT_FILE, scopes=SCOPES)

# Use the create_delegated() method and authorize the delegated credentials
delegated_credentials = credentials.create_delegated('address@example.com')  
delegated_http = delegated_credentials.authorize(httplib2.Http())
google_calendar = discovery.build('calendar', 'v3', http=delegated_http)

events = google_calendar.events().list(
    calendarId='address@example.com',
    maxResults=10
).execute()

我还建议您在API调用中设置calendarId='primary'，以便始终返回当前为其委派了凭据的用户的主日历.

I would also suggest setting calendarId='primary' in your API call so that you always return the primary calendar of the user who you currently have delegated credentials for.

有关使用ServiceAccountCredentials进行身份验证的更多信息，请参见以下链接: http://oauth2client.readthedocs.io/en/latest/source/oauth2client.service_account.html

For more information on authenticating using ServiceAccountCredentials see the following link: http://oauth2client.readthedocs.io/en/latest/source/oauth2client.service_account.html