From efc7258377e79cff0ea41f97fa999873325e2fb5 Mon Sep 17 00:00:00 2001
From: Terry Jan Reedy <tjreedy@udel.edu>
Date: Sun, 12 Oct 2014 22:58:47 -0400
Subject: Issue #22614: Don't try to update deleted text.  Patch by Serhiy
 Storchaka.

---
 Lib/idlelib/PyShell.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Lib/idlelib/PyShell.py b/Lib/idlelib/PyShell.py
index 514aee6..6b43988 100755
--- a/Lib/idlelib/PyShell.py
+++ b/Lib/idlelib/PyShell.py
@@ -151,6 +151,9 @@ class PyShellEditorWindow(EditorWindow):
 
     def color_breakpoint_text(self, color=True):
         "Turn colorizing of breakpoint text on or off"
+        if self.io is None:
+            # possible due to update in restore_file_breaks
+            return
         if color:
             theme = idleConf.GetOption('main','Theme','name')
             cfg = idleConf.GetHighlight(theme, "break")
-- 
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