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我正在使用 gspread 将我的应用程序连接到电子表格，为此我使用以下代码

import json
import gspread
from oauth2client.client import SignedJwtAssertionCredentials

json_key = json.load(open('service_account.json'))
scope = ['https://spreadsheets.google.com/feeds']
credentials = SignedJwtAssertionCredentials(json_key['client_email'], json_key['private_key'], scope)
gc = gspread.authorize(credentials)
sheet = gc.open('Order Database').sheet1

当我在空闲时使用它来访问电子表格时，同样的代码运行良好。但是当我在我的应用程序的代码中使用它时，我正在使用 Google App Engine，当我运行应用程序并尝试访问时我收到此错误的页面

ERROR    2015-09-14 08:49:44,263 wsgi.py:263] 
Traceback (most recent call last):
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/runtime/wsgi.py", line 240, in Handle
    handler = _config_handle.add_wsgi_middleware(self._LoadHandler())
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/runtime/wsgi.py", line 299, in _LoadHandler
    handler, path, err = LoadObject(self._handler)
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/runtime/wsgi.py", line 85, in LoadObject
    obj = __import__(path[0])
  File "/Users/mbp13inch/Documents/Workspace/ehscanteen/main.py", line 15, in <module>
    db = Database()
  File "/Users/mbp13inch/Documents/Workspace/ehscanteen/server.py", line 10, in __init__
    credentials = SignedJwtAssertionCredentials(json_key['client_email'], json_key['private_key'], scope)
  File "/Users/mbp13inch/Documents/Workspace/ehscanteen/lib/oauth2client/util.py", line 142, in positional_wrapper
    return wrapped(*args, **kwargs)
  File "/Users/mbp13inch/Documents/Workspace/ehscanteen/lib/oauth2client/client.py", line 1622, in __init__
    _RequireCryptoOrDie()
  File "/Users/mbp13inch/Documents/Workspace/ehscanteen/lib/oauth2client/client.py", line 1573, in _RequireCryptoOrDie
    raise CryptoUnavailableError('No crypto library available')
CryptoUnavailableError: No crypto library available

我什至在项目目录中成功安装了库：

pip install -t lib PyOpenSSL
pip install -t lib gspread
pip install -t lib oauth2client
pip install -t lib cryptography

我什至尝试添加--upgrade到每一个并成功安装，但得到了同样的错误

如果我做错了什么，请告诉我，我该如何解决这个问题？

提前致谢。

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1 回答 1

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好的，我终于解决了这个问题。我实际上所要做的就是将以下内容添加到app.yaml：

libraries:
- name: pycrypto
  version: "latest"
于 2015-09-14T14:41:24.733 回答