如何解决 Google calander API 中的 HttpError 403“权限不足”？

Question

我想使用 python 创建一个带有谷歌日历 API 的事件。我使用了这里的示例代码 https://developers.google.com/google-apps/calendar/v3/reference/events/insert

我认为 GMT 会是一个问题，但后来我也像使用谷歌日历设置的代码一样更改了 GMT。但仍然有同样的错误。完整代码如下

from __future__ import print_function
import httplib2
import os

from apiclient import discovery
from oauth2client import client
from oauth2client import tools
from oauth2client.file import Storage

import datetime

try:
    import argparse
    flags = argparse.ArgumentParser(parents=[tools.argparser]).parse_args()
except ImportError:
    flags = None

# If modifying these scopes, delete your previously saved credentials
# at ~/.credentials/calendar-python-quickstart.json
SCOPES = 'https://www.googleapis.com/auth/calendar.readonly'
CLIENT_SECRET_FILE = 'client_secret.json'
APPLICATION_NAME = 'Google Calendar API Python Quickstart'


def get_credentials():
    """Gets valid user credentials from storage.

    If nothing has been stored, or if the stored credentials are invalid,
    the OAuth2 flow is completed to obtain the new credentials.

    Returns:
        Credentials, the obtained credential.
    """
    home_dir = os.path.expanduser('~')
    credential_dir = os.path.join(home_dir, '.credentials')
    if not os.path.exists(credential_dir):
        os.makedirs(credential_dir)
    credential_path = os.path.join(credential_dir, 'calendar-python-quickstart.json')

    store = Storage(credential_path)
    credentials = store.get()
    if not credentials or credentials.invalid:
        flow = client.flow_from_clientsecrets(CLIENT_SECRET_FILE, SCOPES)
        flow.user_agent = APPLICATION_NAME
        if flags:
            credentials = tools.run_flow(flow, store, flags)
        else: # Needed only for compatibility with Python 2.6
            credentials = tools.run(flow, store)
        print('Storing credentials to ' + credential_path)
    return credentials

def main():
    """Shows basic usage of the Google Calendar API.

    Creates a Google Calendar API service object and outputs a list of the next
    10 events on the user's calendar.
    """
    credentials = get_credentials()
    http = credentials.authorize(httplib2.Http())
    service = discovery.build('calendar', 'v3', http=http)

    now = datetime.datetime.utcnow().isoformat() + 'Z' # 'Z' indicates UTC time
    print('Getting the upcoming 10 events')
    eventsResult = service.events().list(
        calendarId='primary', timeMin=now, maxResults=10, singleEvents=True,
        orderBy='startTime').execute()
    events = eventsResult.get('items', [])

    if not events:
        print('No upcoming events found.')
    for event in events:
        start = event['start'].get('dateTime', event['start'].get('date'))
        print(start, event['summary'])
    event = {
        'summary': 'Google I/O 2015',
        'location': '800 Howard St., San Francisco, CA 94103',
        'description': 'A chance to hear more about Google\'s developer products.',
        'start': {
            'dateTime': '2017-03-24T09:00:00-07:00',
            'timeZone': 'America/Los_Angeles',
        },
        'end': {
            'dateTime': '2017-03-24T17:00:00-07:00',
            'timeZone': 'America/Los_Angeles',
        },
        'recurrence': [
            'RRULE:FREQ=DAILY;COUNT=2'
        ],
        'attendees': [
            {'email': 'lpage@example.com'},
            {'email': 'sbrin@example.com'},
        ],
        'reminders': {
            'useDefault': False,
            'overrides': [
                {'method': 'email', 'minutes': 24 * 60},
                {'method': 'popup', 'minutes': 10},
            ],
        },
    }

    event = service.events().insert(calendarId='primary', body=event).execute()
    print('Event created: %s' % (event.get('htmlLink')))

if __name__ == '__main__':
    main()

错误是：

Traceback (most recent call last):
  File "D:/cs/projects/googleApi/quickstart.py", line 106, in <module>
    main()
  File "D:/cs/projects/googleApi/quickstart.py", line 102, in main
    event = service.events().insert(calendarId='primary', body=event).execute()
  File "D:\cs\anaconda\lib\site-packages\oauth2client\_helpers.py", line 133, in positional_wrapper
    return wrapped(*args, **kwargs)
  File "D:\cs\anaconda\lib\site-packages\googleapiclient\http.py", line 840, in execute
    raise HttpError(resp, content, uri=self.uri)
googleapiclient.errors.HttpError: <HttpError 403 when requesting https://www.googleapis.com/calendar/v3/calendars/primary/events?alt=json returned "Insufficient Permission">

我是谷歌 API 的新手。我发现了一些类似的问题，但它们是针对 gmail 或其他服务的，但没有日历。错误的可能解决方案是什么。可以请任何人帮忙吗？

Answer 1

您已使用以下范围进行身份验证

' https://www.googleapis.com/auth/calendar.readonly '

此范围允许只读访问，只有您无权插入，请改用此范围。

https://www.googleapis.com/auth/calendar

请记住删除任何存储的凭据并使用新范围再次登录用户。