From f105668bab6496f257ace8905eaa24e7e626cb7b Mon Sep 17 00:00:00 2001
From: Walter Bender <walter@walter-laptop.(none)>
Date: Thu, 01 Oct 2009 22:51:09 +0000
Subject: added lower bound too :)

---
diff --git a/tawindow.py b/tawindow.py
index 5dcf164..c9442f3 100644
--- a/tawindow.py
+++ b/tawindow.py
@@ -663,10 +663,12 @@ def unselect(tw):
     if tw.selected_block.label in ['-', '.', '-.']:
         setlabel(tw.selected_block,'0')
 
-    # put an upperbound on numbers
+    # put an upper and lower bound on numbers to prevent OverflowError
     i = int(tw.selected_block.label)
     if i > 1000000:
         setlabel(tw.selected_block,'0')
+    elif i < -1000000:
+        setlabel(tw.selected_block,'0')
 
     hide(tw.select_mask)
     hide(tw.select_mask_string)
--
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