def _value_path(self, key, value):
     return os.path.join(
         self._key_path(key),
         sha1(value).hexdigest()[:16]
     )
 def _value_path(self, key, value):
     return os.path.join(self._key_path(key), sha1(value).hexdigest()[:16])
def _hash(key):
    return sha1(key).hexdigest()[:16]
def _hash(key):
    return sha1(key).hexdigest()[:16]