From 805465750d7c442f4b1e7ee7f03014bf6b0c5ace Mon Sep 17 00:00:00 2001
From: Walter Bender <walter@sugarlabs.org>
Date: Sat, 09 Oct 2010 13:57:36 +0000
Subject: check for block==None before checking to see if block is proto

---
(limited to 'TurtleArt')

diff --git a/TurtleArt/tawindow.py b/TurtleArt/tawindow.py
index 2b0abc8..ae56f3c 100644
--- a/TurtleArt/tawindow.py
+++ b/TurtleArt/tawindow.py
@@ -1821,7 +1821,8 @@ class TurtleArtWindow():
             return True
         # Otherwise, use keyboard input to move blocks or turtles
         # but not proto blocks
-        elif self.selected_blk.name != 'proto':
+        elif self.selected_blk is not None and \
+             self.selected_blk.name != 'proto':
             self._process_keyboard_commands(keyname)
         if self.selected_blk is None:
             return False
--
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