我在我的 Django 应用程序中收到了这个错误，但是，它每天只发生一次或更少，并且证明非常难以调试。
Environment:
Request Method: POST
Django Version: 1.3.1
Python Version: 2.6.6
Installed Applications:
['django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.sites',
'fimedlabs',
'data',
'djcelery']
Installed Middleware:
('django.middleware.common.CommonMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'fimedlabs.auth.userMiddleWare')
Traceback:
File "/usr/local/lib/python2.6/dist-packages/django/core/handlers/base.py" in get_response
178. response = middleware_method(request, response)
File "/usr/local/lib/python2.6/dist-packages/django/contrib/sessions/middleware.py" in process_response
36. request.session.save()
File "/usr/local/lib/python2.6/dist-packages/django/contrib/sessions/backends/db.py" in save
57. session_data = self.encode(self._get_session(no_load=must_create)),
File "/usr/local/lib/python2.6/dist-packages/django/contrib/sessions/backends/base.py" in encode
93. pickled = pickle.dumps(session_dict, pickle.HIGHEST_PROTOCOL)
Exception Type: PicklingError at /
Exception Value: Can't pickle <type 'function'>: attribute lookup __builtin__.function failed
我已经尝试过这个问题的答案：
通过将 self 添加到实际错误中，以查看是否会在 Django 错误中打印任何内容，但无济于事。
我在哪里可以打印出导致此错误问题的对象，以便它出现在 Django 错误页面中？
谢谢！〜马特
编辑：我存储在缓存中的唯一对象是带有代码的用户对象：
class user(object):
username = str()
userid = uuid.UUID(int=0)
client = models.Client()
clientid = uuid.UUID(int=0)
clientname = ''
data = models.User()
accesslevel = models.AccessLevel()
active = False
client_active = False
isFimed = False
isFimedAdmin = False
isClientAdmin = False
isFimedManager = False
mysettingsform = None
viewingas = False
menu = []
_exists = False
_authenticated = False
def __str__(self):
return str(self.__dict__.copy())
def __getstate__(self):
return self.__dict__.copy()
def __setstate__(self, dict):
self.__dict__ = dict
def __init__(self, username=None):
if username:
self.initialize(username)
def initialize(self, username):
self.username = username
model = models.User.objects.filter(username=username).all()
if len(model) == 1:
model = model[0]
self.data = model
self._exists = True
self.userid = self.data.id
self.active = self.data.active
self.isFimed = self.data.isFimed()
self.isFimedAdmin = self.data.isFimedAdmin()
self.isClientAdmin = self.data.isClientAdmin()
self.isFimedManager = self.data.isFimedManager()
self.mysettingsform = UserFormSelf(initial={"id":model.id, "username":model.username, "name":model.name, "email":model.email, "phone":model.phone})
self.accesslevel = models.AccessLevel.objects.filter(id=self.data.accesslevel_id)[:1][0].level
cli = self.data.client
self.client = cli
self.clientid = cli.id
self.clientname = cli.name
if cli.active:
self.client_active = True
model.lastlogin = datetime.datetime.now()
model.save()
self.menu = getMenu(self.data)
else:
self._exists = False
def authenticate(self, password):
self._authenticated = False
if (self.active == False or self.client_active == False):
return False
if self._exists:
import hashlib
hash = hashlib.md5('%s%s' % (str(password), self.data.pwsalt)).hexdigest()
if hash == self.data.pwhash:
self._authenticated = True
return True
return False
def updateUser(self):
self.initialize(models.User.objects.filter(id=self.userid).get().username)
def mkContext(self):
c = Context()
c['menu'] = self.menu
c['user'] = self
c['language'] = language
c['colors'] = colors
c["isFimed"] = self.isFimed
c["isFimedAdmin"] = self.isFimedAdmin
c["isClientAdmin"] = self.isClientAdmin
c["isFimedManager"] = self.isFimedManager
c["mysettingsform"] = self.mysettingsform
return c
编辑： Werkzeug 之后的 WSGI 文件：
import django.core.handlers.wsgi
djangoapplication = django.core.handlers.wsgi.WSGIHandler()
def application(environ, start_response):
if 'SCRIPT_NAME' in environ:
del environ['SCRIPT_NAME']
return djangoapplication(environ, start_response)
# The following lines enable the werkzeug debugger
import django.views.debug
def null_technical_500_response(request, exc_type, exc_value, tb):
raise exc_type, exc_value, tb
django.views.debug.technical_500_response = null_technical_500_response
from werkzeug.debug import DebuggedApplication
application = DebuggedApplication(application, evalex=True)