From 600baa5ca3287dea04f689a1fff7a1bc603df855 Mon Sep 17 00:00:00 2001
From: xi <xi@18f92427-320e-0410-9341-c67f048884a3>
Date: Tue, 8 May 2007 20:38:29 +0000
Subject: [PATCH] Allow for immutable subclasses of YAMLObject. Fixes #53.

git-svn-id: http://svn.pyyaml.org/pyyaml/trunk@252 18f92427-320e-0410-9341-c67f048884a3
---
 lib/yaml/__init__.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/yaml/__init__.py b/lib/yaml/__init__.py
index 2389ce4..bd233a8 100644
--- a/lib/yaml/__init__.py
+++ b/lib/yaml/__init__.py
@@ -265,6 +265,7 @@ class YAMLObject(object):
     """
 
     __metaclass__ = YAMLObjectMetaclass
+    __slots__ = ()  # no direct instantiation, so allow immutable subclasses
 
     yaml_loader = Loader
     yaml_dumper = Dumper
-- 
2.11.4.GIT