GMAIL API 不接受大多数查询 (GAE Python)

Question

我正在尝试使用 Python 上的 Google App Engine 应用程序获取过去 3 个月内所有已发送的消息。出于某种原因，它不接受我输入的大部分查询。它 returns 结果是一个简单的字符串，但如果我输入类似 "after:2015/01/20" 或 "newer_than:3m" 的内容，它会给我以下错误：

AttributeError: 'Resource' object has no attribute 'messages'

我不知道这是从哪里来的。我当前的请求代码是：

import webapp2, httplib2
from dateutil.relativedelta import *

from oauth2client.appengine import OAuth2Decorator
from apiclient import discovery, errors
from oauth2client import client
from google.appengine.api import memcache

http = httplib2.Http(memcache)
service = discovery.build("gmail", "v1", http=http)
decorator = OAuth2Decorator(client_id=settings.CLIENT_ID,
                        client_secret=settings.CLIENT_SECRET,
                        scope=settings.SCOPE)

class retrieveMessages(webapp2.RequestHandler):

  @decorator.oauth_required
  def get(self):
    try:
        user = 'someone@gmail.com'
        after = (datetime.datetime.now()+relativedelta(months=-3)).strftime("%Y/%m/%d")
        query = 'after:'+after
        http = decorator.http()
        response = service.users().messages().list(userId=user, labelIds='SENT', q=query, maxResults=1000).execute(http=http)
        messages = []
        if 'messages' in response:
            messages.extend(response['messages'])

        while 'nextPageToken' in response:
          page_token = response['nextPageToken']
          response = service.users().messages().list(userId=user, labelIds='SENT', q=query, pageToken=page_token).executehttp=http(http=http)
          messages.extend(response['messages'])

        return messages
    except errors.HttpError, error:
        print 'An error occurred: %s' % error
        if error.resp.status == 401:
          # Credentials have been revoked.
          # TODO: Redirect the user to the authorization URL.
          raise NotImplementedError()

Answer 1

这段代码不应该在 while 循环中：

response = service.messages()...

成为

response = service.users().messages()...

GMAIL API 不接受大多数查询 (GAE Python)

GMAIL API doesn't accept most queries (GAE Python)

python

google-app-engine

gmail-api