From bcfbe9b4ecd07245693a1b44c73b5d831dd71e0d Mon Sep 17 00:00:00 2001
From: John David Reaver <jdreaver@adlerhorst.com>
Date: Wed, 22 Oct 2014 16:33:40 -0700
Subject: [PATCH] Fix PySide error when ViewBox signal destroyed

Fixes issue #107
---
 pyqtgraph/graphicsItems/ViewBox/ViewBox.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pyqtgraph/graphicsItems/ViewBox/ViewBox.py b/pyqtgraph/graphicsItems/ViewBox/ViewBox.py
index ceca62c8..ec9c20fe 100644
--- a/pyqtgraph/graphicsItems/ViewBox/ViewBox.py
+++ b/pyqtgraph/graphicsItems/ViewBox/ViewBox.py
@@ -1718,6 +1718,8 @@ class ViewBox(GraphicsWidget):
                 pass
             except TypeError:  ## view has already been deleted (?)
                 pass
+            except AttributeError:  # PySide has deleted signal
+                pass
             
     def locate(self, item, timeout=3.0, children=False):
         """