Python Google API类设计中的AccessTokenRefresh错误

我试图为我的GoogleAPI调用的基本锅炉板初始化创建一个基类。通过阅读在线教程，我认为http传输对象应该在每次调用时重新使用，而不是重新初始化

一些基本信息：

平台：谷歌的AppEngine-Python2.7，支持线程

错误：

我一定是误解了什么，或者我的设计有缺陷。当我为我想要与BigQuery&Storage接口的每个API指定一个单独的类时，它工作得非常好。我只是想在类之间共享构造函数

这种方法在本地运行得非常好，尽管它使用的是不同的凭证机制

此类的实现示例：

class BigQueryClient(BaseGoogleAPIClient):

    @classmethod
    def get_scope(cls):
        return 'https://www.googleapis.com/auth/bigquery'

    @property
    def serviceName(self):
        return 'bigquery'

    @property
    def version(self):
        return 'v2'

    #METHODS REMOVED

我有没有做错什么？我的设计有缺陷吗？有没有更好的方法来实现我想做的事情？我想我不必每次都构建服务接口，但如果不构建，它会是线程安全的吗？这个方法是线程安全的吗

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任何帮助都将不胜感激

试着在不穿这些衣服的情况下让它发挥作用。刷新错误可能只是意味着您没有有效的刷新令牌。在我尝试创建基类之前，它正在工作

import os, httplib2, abc, logging
from apiclient.discovery import build
from oauth2client.appengine import AppAssertionCredentials
from oauth2client.client import Storage, Credentials
from google.appengine.api import memcache

http = None

class FileStorage(Storage):
    def __init__(self, filepath):
        self._filepath = filepath

    def locked_get(self):
        with open(self._filepath, 'r') as f:
            json = f.read()
        credentials = Credentials.new_from_json(json)
        return credentials

class BaseGoogleAPIClient(object):
    __metaclass__ = abc.ABCMeta

    """The following is not ideal, would prefer abstract class properties"""

    @classmethod
    def get_scope(cls):
        raise NotImplementedError("Must define the authorization scope required for this class (multiple scopes should be seperated by a space)")

    @abc.abstractproperty
    def serviceName(self):
        """Define the Service this class will interface with"""
        return

    @abc.abstractproperty
    def version(self):
        """Define the Version of the API we will interface with"""
        return


    def __init__(self):
        global http

        if not http:
            if not os.environ['SERVER_SOFTWARE'].startswith('Development'):
                scopes = []

                for sc in BaseGoogleAPIClient.__subclasses__():
                    for scope in sc.get_scope().split(' '):
                        if not scope in scopes:
                            scopes.append(scope)

                logging.debug("Scopes {scopes}".format(scopes=scopes))

                credentials = AppAssertionCredentials(scope=scopes)
            else:
                """USED FOR LOCAL TESTING"""
                filepath = #PATH REMOVED
                storage = FileStorage(filepath)
                credentials = storage.get()
            http = credentials.authorize(httplib2.Http(memcache))

        self.service = build(self.serviceName, self.version, http=http)

class BigQueryClient(BaseGoogleAPIClient):

    @classmethod
    def get_scope(cls):
        return 'https://www.googleapis.com/auth/bigquery'

    @property
    def serviceName(self):
        return 'bigquery'

    @property
    def version(self):
        return 'v2'

    #METHODS REMOVED