Removed django.core.cache.backends.memcached.CacheClass.

    def clear(self):

        self._cache.flush_all()

class CacheClass(BaseMemcachedCache):

    def __init__(self, server, params):

        import warnings

        warnings.warn(

            "memcached.CacheClass has been split into memcached.MemcachedCache and memcached.PyLibMCCache. Please update your cache backend setting.",

            DeprecationWarning

        )

        try:

            import memcache

        except ImportError:

            raise InvalidCacheBackendError(

                "Memcached cache backend requires either the 'memcache' or 'cmemcache' library"

                )

        super(CacheClass, self).__init__(server, params,

                                         library=memcache,

                                         value_not_found_exception=ValueError)

class MemcachedCache(BaseMemcachedCache):

    "An implementation of a cache binding using python-memcached"

    def __init__(self, server, params):