• weberror.evalexception : 431, in respond

  app_iter = self.application(environ, detect_start_response)
  

• repoze.tm : 19, in __call__

  result = self.application(environ, save_status_and_headers)
  

• repoze.who.middleware : 107, in __call__

  app_iter = app(environ, wrapper.wrap_start_response)
  

• beaker.middleware : 70, in __call__

  return self.app(environ, start_response)
  

• beaker.middleware : 149, in __call__

  return self.wrap_app(environ, session_start_response)
  

• routes.middleware : 130, in __call__

  response = self.app(environ, start_response)
  

• tw2.core.middleware : 137, in __call__

  resp = req.get_response(self.app)
  

• webob : 1325, in get_response

  No operation context
  

• webob : 1293, in call_application

  No operation context
  

• mvp.core.middleware.pypesstaticapp : 39, in __call__

  return self.app(environ, start_response)
  

• pylons.wsgiapp : 107, in __call__

  response = self.dispatch(controller, environ, start_response)
  

• pylons.wsgiapp : 301, in dispatch

  return controller(environ, start_response)
  

• mvp.base.controllers.base : 76, in __call__

  session.remove()
  

• paste.registry : 137, in __getattr__

  return getattr(self._current_obj(), attr)
  

• beaker.session : 494, in __getattr__

  return getattr(self._session(), attr)
  

AttributeError: 'Session' object has no attribute 'remove'