python - 属性错误 : 'module' object has no attribute 'Popen' error

Question

我正在使用 Python 2.7 和 Google appengine 创建一个应用程序。当我尝试使用 devappserver.py 运行应用程序时出现以下错误。

 from google.appengine.api import mail_stub
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\mail_stub.py", line 50, in <module>
    class MailServiceStub(apiproxy_stub.APIProxyStub):
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\mail_stub.py", line 223, in MailServiceStub
    popen=subprocess.Popen,
AttributeError: 'module' object has no attribute 'Popen'
2015-04-16 16:35:43 (Process exited with code 1)

直到我将 PYTHONPATH 更改为 google\google_appengine\lib\webob-1.1.1;

后才出现此问题

我该如何解决这个问题？

Answer 1

Google App Engine 沙箱不允许系统调用 - 包括 Popen()。 https://cloud.google.com/appengine/docs/python/#Python_The_sandbox