Error pickling request.user

[zero.fuxor@…]

trying to pickle a request.user in trunk raises: TypeError, can't pickle function objects
Looking it shows that request.user is a SimpleLazyObject and it is a <lambda>, so it can not be pickled.

try:
    import cPickle as pickle
except:
    import pickle


def some_view(request):
    pickle.dumps(request.user) # raise type error
    …

[Paul McMillan]

Some things aren't pickleable. It's a known limitation at the Python level, and is unlikely to change. Is Django itself trying to do this somewhere? Is there an extremely good reason this should be possible? I'm closing this as wontfix. Please feel free to reply if you've got good answers to these questions.

[Chris Beaven]

I'm going to reopen for now due to the fact this is a regression in 1.4.

Previously, this was possible:

def my_view(request):
    obj = MyObj(user=request.user, amount=1)
    request.session['unsaved_obj'] = obj
    # ...

Now request.user has been changed to a SimpleLazyObject rather than changing the request class to actually lazily return the true user object, this will choke.
Maybe this is an acceptable regression, but it's something I tripped up on in a project recently.

[Russell Keith-Magee]

If this is a regression, then it should be tracked as a release blocker.