johnny.backends.memcached.MemcachedCache': 'module' object has no attribute 'CacheClass' ?????

[Victor]

In my settings.py I have the following code:
.........
CACHES = {
    'default': {
            'BACKEND': 'johnny.backends.memcached.MemcachedCache',
#           'BACKEND': 'johnny.backends.memcached.CacheClass',
            'LOCATION': ['127.0.0.1:11212'],
            'JOHNNY_CACHE': True,
                        }
                        }

JOHNNY_MIDDLEWARE_KEY_PREFIX='vic_'

MIDDLEWARE_CLASSES = (
    'johnny.middleware.LocalStoreClearMiddleware',
    'johnny.middleware.QueryCacheMiddleware',
.........

Which worked like a charm till django 1.5.5.

Now, after installing  the new django 1.6 when I launch  'python manage.py 
runserver' the following fatal error is signalled:


File 
"/Library/Python/2.7/site-packages/django/contrib/staticfiles/management/commands/runserver.py",
 line 6, in <module>
    from django.contrib.staticfiles.handlers import StaticFilesHandler
  File 
"/Library/Python/2.7/site-packages/django/contrib/staticfiles/handlers.py", 
line 8, in <module>
    from django.contrib.staticfiles.views import serve
  File "/Library/Python/2.7/site-packages/django/contrib/staticfiles/views.py", 
line 15, in <module>
    from django.contrib.staticfiles import finders
  File 
"/Library/Python/2.7/site-packages/django/contrib/staticfiles/finders.py", line 
12, in <module>
    from django.contrib.staticfiles.storage import AppStaticStorage
  File 
"/Library/Python/2.7/site-packages/django/contrib/staticfiles/storage.py", line 
8, in <module>
    from django.core.cache import (get_cache, InvalidCacheBackendError,
  File "/Library/Python/2.7/site-packages/django/core/cache/__init__.py", line 
138, in <module>
    cache = get_cache(DEFAULT_CACHE_ALIAS)
  File "/Library/Python/2.7/site-packages/django/core/cache/__init__.py", line 
130, in get_cache
    "Could not find backend '%s': %s" % (backend, e))
django.core.cache.backends.base.InvalidCacheBackendError: Could not find 
backend 'johnny.backends.memcached.MemcachedCache': 'module' object has no 
attribute 'CacheClass'

Surfing the netI found a workaround  for this error that applied to django 1.4 
butturned out to be useless with 1.6.
Please help
Vittorio

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