python - Google Api Auth Http 模块错误

Question

我正在开发我的第一个使用 Google Api for Calendar 的应用程序。我在以下位置阅读了 Google 示例:https://developers.google.com/google-apps/calendar/instantiate

我第一次运行下面的程序就成功了。我允许我的应用程序访问我的 Google 帐户，该应用程序在我的应用程序目录中创建了一个包含授权信息的 calendar.dat 文件。在我重命名文件后，身份验证中的代码停止工作。我已经完全删除文件并从头开始重新创建它，但错误仍然存​​在。

我仍然看到 Google 身份验证页面，并且仍然可以确认访问，之后我收到一条消息，表明身份验证流程已完成。

这是代码(我用我的应用详细信息填写的标准 Google 示例):

import gflags
import httplib2

from apiclient.discovery import build
from oauth2client.file import Storage
from oauth2client.client import OAuth2WebServerFlow
from oauth2client.tools import run

FLAGS = gflags.FLAGS

# Set up a Flow object to be used if we need to authenticate. This
# sample uses OAuth 2.0, and we set up the OAuth2WebServerFlow with
# the information it needs to authenticate. Note that it is called
# the Web Server Flow, but it can also handle the flow for native
# applications
# The client_id and client_secret are copied from the API Access tab on
# the Google APIs Console
FLOW = OAuth2WebServerFlow(
    client_id='YOUR_CLIENT_ID',
    client_secret='YOUR_CLIENT_SECRET',
    scope='https://www.googleapis.com/auth/calendar',
    user_agent='YOUR_APPLICATION_NAME/YOUR_APPLICATION_VERSION')

# To disable the local server feature, uncomment the following line:
# FLAGS.auth_local_webserver = False

# If the Credentials don't exist or are invalid, run through the native client
# flow. The Storage object will ensure that if successful the good
# Credentials will get written back to a file.
storage = Storage('calendar.dat')
credentials = storage.get()
if credentials is None or credentials.invalid == True:
  credentials = run(FLOW, storage)

# Create an httplib2.Http object to handle our HTTP requests and authorize it
# with our good Credentials.
http = httplib2.Http()
http = credentials.authorize(http)

# Build a service object for interacting with the API. Visit
# the Google APIs Console
# to get a developerKey for your own application.
service = build(serviceName='calendar', version='v3', http=http,
       developerKey='YOUR_DEVELOPER_KEY')

这是输出:

Your browser has been opened to visit:

    https://accounts.google.com/o/oauth2/auth? (auth url shortened)

If your browser is on a different machine then exit and re-run this
application with the command-line parameter 

  --noauth_local_webserver

Traceback (most recent call last):
  File "C:\Users\Desktop\Google Drive\Code\Python\Rooster\calendar.py", line 2, in <module>
    import httplib2
  File "C:\Python27\lib\site-packages\httplib2-0.7.6-py2.7.egg\httplib2\__init__.py", line 42, in <module>
    import calendar
  File "C:\Users\Desktop\Google Drive\Code\Python\Rooster\calendar.py", line 33, in <module>
    credentials = run(FLOW, storage)
  File "C:\Python27\lib\site-packages\google_api_python_client-1.0-py2.7.egg\oauth2client\util.py", line 120, in positional_wrapper
    return wrapped(*args, **kwargs)
  File "C:\Python27\lib\site-packages\google_api_python_client-1.0-py2.7.egg\oauth2client\tools.py", line 169, in run
    credential = flow.step2_exchange(code, http=http)
  File "C:\Python27\lib\site-packages\google_api_python_client-1.0-py2.7.egg\oauth2client\util.py", line 120, in positional_wrapper
    return wrapped(*args, **kwargs)
  File "C:\Python27\lib\site-packages\google_api_python_client-1.0-py2.7.egg\oauth2client\client.py", line 1128, in step2_exchange
    http = httplib2.Http()
AttributeError: 'module' object has no attribute 'Http'

Answer 1

问题是在您的运行目录中有一个名为 calendar.py 的文件。当 Google 的 httplib2 想要导入标准日历模块时，它会获取本地模块。在本地它执行它来执行导入。但由于 httplib2 尚未完全导入，calendar.py 代码无法正常工作。 只需将 calendar.py 重命名为类似 myCalendar.py 的名称即可。