def _get_buckets_cache_filename():
 cache_dir = _get_cache_dir()
 if (not os.path.exists(cache_dir)):
  os.makedirs(cache_dir)
 return os.path.join(cache_dir, 'buckets_files.cache')

def _get_buckets_cache_filename ( ) : cache_dir = _get_cache_dir ( ) if ( not os . path . exists ( cache_dir ) ) : os . makedirs ( cache_dir ) return os . path . join ( cache_dir , 'buckets_files.cache' )
return the filename of the cache for bucket contents .