ImportError:无法导入名称SignedJwtAssertionCredentials

Question

我正在尝试通过Python客户端使用此代码访问谷歌应用程序以获得授权(私人信息显然已编辑):

import gflags
import httplib2

from apiclient.discovery import build
from oauth2client.file import Storage
from oauth2client.client import SignedJwtAssertionCredentials
from oauth2client.tools import run

f = open('privatekey.p12', 'rb')
key = f.read()
f.close()
credentials = SignedJwtAssertionCredentials(
    service_account_name='name@developer.gserviceaccount.com',
    private_key=key,
    scope = 'https://www.googleapis.com/auth/calendar')
http = httplib2.Http()
http = credentials.authorize(http)
service = build(serviceName='calendar', version='v3', http=http)

但是我收到了这个错误:

ImportError: cannot import name SignedJwtAssertionCredentials

我安装了Google v3 API Python客户端以及OAuth2; 我似乎没有对这些模块有任何其他问题,尽管我没有太多使用它们.有谁知道发生了什么？

Answer 1

我今天遇到了这个问题,不得不从oauth2client 2.0版回滚到版本1.5.2:

pip install oauth2client==1.5.2

Answer 2

好像你没有安装pyopenssl.通过安装easy_install pyopenssl.

Libraries oauth2client.client
if HAS_OPENSSL:
  # PyOpenSSL is not a prerequisite for oauth2client, so if it is missing then
  # don't create the SignedJwtAssertionCredentials or the verify_id_token()
  # method.

  class SignedJwtAssertionCredentials(AssertionCredentials):
....

Answer 3

该源代码库最近进行了更新,以使用新的代码:

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

...