'Reads the cache from the cache file sets self.cache'

def load_cache_from_cache(self):

    try:
        cache = open(self.cache_path_cache, 'r')
        json_cache = cache.read()
        self.cache = json.loads(json_cache)
        return True
    except:
        self.log.error('Error    while    loading    host    cache:\n%s', traceback.format_exc())
        self.cache = {}
        return False
