如何在Google App Engine中使用gaesessions

Question

I'm new to Python (as well as GAE), I'm trying to include gaesessions in my application, this is exactly what I did:

I copied the gaesessions folder to my src folder (the folder includes __init__.py file)

and added this to my working code:

from gaesessions import get_current_session

session = get_current_session()

I received the following error:

Traceback (most recent call last): File "C:\\Program Files\\Google\\google_appengine\\google\\appengine\\runtime\\wsgi.py", line 174, in Handle result = handler(self._environ, self._StartResponse)

File "C:\\Program Files\\Google\\google_appengine\\lib\\webapp2\\webapp2.py", line 1519, in __call__ response = self._internal_error(e)

File "C:\\Program Files\\Google\\google_appengine\\lib\\webapp2\\webapp2.py", line 1511, in __call__ rv = self.handle_exception(request, response, e)

File "C:\\Program Files\\Google\\google_appengine\\lib\\webapp2\\webapp2.py", line 1505, in __call__ rv = self.router.dispatch(request, response)

File "C:\\Program Files\\Google\\google_appengine\\lib\\webapp2\\webapp2.py", line 1253, in default_dispatcher return route.handler_adapter(request, response)

File "C:\\Program Files\\Google\\google_appengine\\lib\\webapp2\\webapp2.py", line 1077, in __call__ return handler.dispatch()

File "C:\\Program Files\\Google\\google_appengine\\lib\\webapp2\\webapp2.py", line 547, in dispatch return self.handle_exception(e, self.app.debug)

File "C:\\Program Files\\Google\\google_appengine\\lib\\webapp2\\webapp2.py", line 545, in dispatch return method(*args, **kwargs)

File "D:....\\src\\helloworld.py", line 13, in get session = get_current_session()

File "D:....\\src\\gaesessions\\__init__.py", line 36, in get_current_session return _tls.current_session

File "C:\\Python27\\lib\\_threading_local.py", line 193, in __getattribute__ return object.__getattribute__(self, name)

Answer 1

You've omitted the actual exception from your stack trace, but I'm guessing it's this:

AttributeError: 'local' object has no attribute 'current_session'

If so, you've most likely skipped the middleware configuration step. Create an appengine_config.py per the instructions and restart the dev server; this should resolve your error.