From 6d445776c91d1b6c77e40fdf405fe21146aa7025 Mon Sep 17 00:00:00 2001
From: Steven Silvester <steven.silvester@ieee.org>
Date: Wed, 24 Dec 2014 17:30:15 -0600
Subject: [PATCH] Fix the dummy Signal

---
 skimage/viewer/qt.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/skimage/viewer/qt.py b/skimage/viewer/qt.py
index dc4852c9..9a6537b3 100644
--- a/skimage/viewer/qt.py
+++ b/skimage/viewer/qt.py
@@ -14,7 +14,7 @@ except ImportError:
             QWidget = object
 
         class QtCore(object):
-            Signal = object
+            def Signal(*args, **kwargs): pass
             Qt = object
 
         QtWidgets = QtGui