From bc7e8f0b35a3c825a468df240a92a0e9a3441515 Mon Sep 17 00:00:00 2001
From: Walter Bender <walter@sugarlabs.org>
Date: Tue, 12 Nov 2013 18:19:48 +0000
Subject: catch empty palette case when tabbing through palettes

---
(limited to 'TurtleArt/tawindow.py')

diff --git a/TurtleArt/tawindow.py b/TurtleArt/tawindow.py
index f96a178..10867dc 100644
--- a/TurtleArt/tawindow.py
+++ b/TurtleArt/tawindow.py
@@ -3645,9 +3645,10 @@ before making changes to your program'))
                             i += 1
                             if i == len(p) - 1:
                                 i = 0
-            self._highlighted_blk = p[i]
-            self._highlighted_blk.highlight()
-            self.selected_blk = p[i]
+            if i < len(p):
+                self._highlighted_blk = p[i]
+                self._highlighted_blk.highlight()
+                self.selected_blk = p[i]
 
         elif self.selected_blk is not None:
             if self.selected_blk.type == 'proto':
--
cgit v0.9.1