From 99f2fc687951dcb1b770df2f4b4e8dd75162cdec Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Sat, 10 May 2014 20:56:54 +0530
Subject: [PATCH] Ignore errors during live refresh of the toc view

---
 src/calibre/gui2/tweak_book/toc.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/calibre/gui2/tweak_book/toc.py b/src/calibre/gui2/tweak_book/toc.py
index dcebcc6ec5..1a8e91f02b 100644
--- a/src/calibre/gui2/tweak_book/toc.py
+++ b/src/calibre/gui2/tweak_book/toc.py
@@ -147,7 +147,12 @@ class TOCViewer(QWidget):
 
     def auto_refresh(self):
         if self.isVisible():
-            self.refresh()
+            try:
+                self.refresh()
+            except Exception:
+                # ignore errors during live refresh of the toc
+                import traceback
+                traceback.print_exc()
 
     def refresh(self):
         self.refresh_requested.emit()  # Give boss a chance to commit dirty editors to the container