From b886ba76dec436a5d2d888032338baaa1fbb07db Mon Sep 17 00:00:00 2001
From: Vincent Driessen <vincent@3rdcloud.com>
Date: Mon, 2 Apr 2012 00:32:59 +0200
Subject: [PATCH] Fix AttributeError.

---
 rq/local.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/rq/local.py b/rq/local.py
index a461a9f..e789c81 100644
--- a/rq/local.py
+++ b/rq/local.py
@@ -161,7 +161,10 @@ class LocalStack(object):
             return None
 
     def __len__(self):
-        return len(self._local.stack)
+        stack = getattr(self._local, 'stack', None)
+        if stack is None:
+            return 0
+        return len(stack)
 
 
 class LocalManager(object):