From 40cf671fdc632078dc614018ad1a33d827b86131 Mon Sep 17 00:00:00 2001
From: Marcin Kuzminski <marcin@python-works.com>
Date: Wed, 8 Feb 2012 05:48:31 +0200
Subject: [PATCH] fixed error message on empty target_metadata _script
 undefined

---
 alembic/autogenerate.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/alembic/autogenerate.py b/alembic/autogenerate.py
index 8fc51920..d0a5e736 100644
--- a/alembic/autogenerate.py
+++ b/alembic/autogenerate.py
@@ -21,7 +21,7 @@ def produce_migration_diffs(context, template_args, imports):
                 "Can't proceed with --autogenerate option; environment "
                 "script %s does not provide "
                 "a MetaData object to the context." % (
-                    context._script.env_py_location
+                    context.script.env_py_location
                 ))
     connection = context.bind
     diffs = []
-- 
2.47.2