From 72042fc36f503894741ea4086bb89076b58542dc Mon Sep 17 00:00:00 2001
From: Walter Bender <walter.bender@gmail.com>
Date: Mon, 09 Jul 2012 21:13:32 +0000
Subject: fix problem with nested while loops

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

diff --git a/TurtleArt/tablock.py b/TurtleArt/tablock.py
index 7e48d43..dd1ac04 100644
--- a/TurtleArt/tablock.py
+++ b/TurtleArt/tablock.py
@@ -49,6 +49,12 @@ class Blocks:
         else:
             return(self.list[i])
 
+    def swap(self, blk1, blk2):
+        i1 = self.list.index(blk1)
+        i2 = self.list.index(blk2)
+        self.list[i1] = blk2
+        self.list[i2] = blk1
+
     def length_of_list(self):
         return(len(self.list))
 
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