From 7378df78225e9dcd3da7831c81f52f2af36692fc Mon Sep 17 00:00:00 2001
From: "Kurt B. Kaiser" <kbk@shore.net>
Date: Sat, 11 Aug 2007 04:20:51 +0000
Subject: [PATCH] Fix what appears to be a very old bug.  Tkinter in struni is
 more intolerant of non-existant text widget 'marks', it seems.

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

diff --git a/Lib/idlelib/PyShell.py b/Lib/idlelib/PyShell.py
index 90c837c1bf2..bfd659c3362 100644
--- a/Lib/idlelib/PyShell.py
+++ b/Lib/idlelib/PyShell.py
@@ -961,6 +961,7 @@ class PyShell(OutputWindow):
     """
 
     def begin(self):
+        self.text.mark_set("iomark", "insert")
         self.resetoutput()
         if use_subprocess:
             nosub = ''