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django-cbv's Issues

TypeError: can't pickle function objects with per-site cache

From @Kooludo on sorl/django-cbv:

Hi there. I'm getting an error "TypeError: can't pickle function objects" when I attempt to use django-cbv with Django's per site caching middleware (django.middleware.cache.FetchFromCacheMiddleware and django.middleware.cache.UpdateCacheMiddleware).

In my case it seems like it's failing on attempting to pickle an object of type cbv.http.TemplateResponse. I've tried with memcache and locmem backends.

Is this a known issue. Are there any workarounds?

Traceback (most recent call last):

  File "/home/ludo/.virtualenvs/myproject-env/lib/python2.6/site-packages/django/core/servers/basehttp.py", line 280, in run
    self.result = application(self.environ, self.start_response)

  File "/home/ludo/.virtualenvs/myproject-env/lib/python2.6/site-packages/django/core/servers/basehttp.py", line 674, in __call__
    return self.application(environ, start_response)

  File "/home/ludo/.virtualenvs/myproject-env/lib/python2.6/site-packages/django/core/handlers/wsgi.py", line 252, in __call__
    response = middleware_method(request, response)

  File "/home/ludo/.virtualenvs/myproject-env/lib/python2.6/site-packages/django/middleware/cache.py", line 105, in process_response
    cache.set(cache_key, response, timeout)

  File "/home/ludo/.virtualenvs/myproject-env/lib/python2.6/site-packages/django/core/cache/backends/locmem.py", line 86, in set
    self._set(key, pickle.dumps(value), timeout)

  File "/home/ludo/.virtualenvs/myproject-env/lib/python2.6/copy_reg.py", line 70, in _reduce_ex
    raise TypeError, "can't pickle %s objects" % base.__name__

TypeError: can't pickle function objects

It's happening with two different apps using cbv generic views. It's unable to pickle an object of type cbv.http.TemplateResponse.

I'm also using Django-CMS, so wonder if that could be messing with something?

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