From f6718dc6d6dd2d03eabe443f6bb0f579f1103ac6 Mon Sep 17 00:00:00 2001
From: Mike Bayer <mike_mp@zzzcomputing.com>
Date: Thu, 29 Jan 2009 17:03:04 +0000
Subject: [PATCH] fix serialize

---
 lib/sqlalchemy/types.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/sqlalchemy/types.py b/lib/sqlalchemy/types.py
index 8d47a2cf5d..a03d6137df 100644
--- a/lib/sqlalchemy/types.py
+++ b/lib/sqlalchemy/types.py
@@ -132,7 +132,7 @@ class TypeEngine(AbstractType):
 
     def __getstate__(self):
         d = self.__dict__.copy()
-        d['_impl_dict'] = weakref.WeakKeyDictionary()   # will be optimized in 0.6
+        d.pop('_impl_dict', None)
         return d
 
     def get_col_spec(self):
-- 
2.47.2