From 3e3d8c9aef0b1f3cab4cbd9b4a56fe3fb1c8ca27 Mon Sep 17 00:00:00 2001
From: Mike Bayer <mike_mp@zzzcomputing.com>
Date: Thu, 21 Jul 2005 06:47:01 +0000
Subject: [PATCH]

---
 lib/sqlalchemy/util.py | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/lib/sqlalchemy/util.py b/lib/sqlalchemy/util.py
index 488cdee2b9..04d827c08c 100644
--- a/lib/sqlalchemy/util.py
+++ b/lib/sqlalchemy/util.py
@@ -102,4 +102,20 @@ class ThreadLocal(object):
         object.__getattribute__(self, 'tdict')["%d_%s" % (thread.get_ident(), key)] = value
         
 
+class Set(object):
+    def __init__(self, iter):
+        self.map  = {}
+        for i in iter:
+            self.append(i)
 
+    def __iter__(self):
+        return iter(self.map.values())
+        
+    def append(self, item):
+        self.map[item] = item
+        
+    def __delitem__(self, key):
+        del self.map[key]
+        
+    def __getitem__(self, key):
+        return self.map[key]
\ No newline at end of file
-- 
2.47.3