From 249d50a25f0d8ad33efa0f3dbd45eec06e7dcdf3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20v=2E=20L=C3=B6wis?= <martin@v.loewis.de>
Date: Tue, 5 Aug 2003 05:51:20 +0000
Subject: [PATCH] Make sure eol_convention is an ASCII string. Fixes #774680.
 Will backport to 2.3.

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

diff --git a/Lib/idlelib/IOBinding.py b/Lib/idlelib/IOBinding.py
index 3e1f87dadf6..0c3ae7f85e1 100644
--- a/Lib/idlelib/IOBinding.py
+++ b/Lib/idlelib/IOBinding.py
@@ -252,6 +252,9 @@ class IOBinding:
         firsteol = self.eol_re.search(chars)
         if firsteol:
             self.eol_convention = firsteol.group(0)
+            if isinstance(self.eol_convention, unicode):
+                # Make sure it is an ASCII string
+                self.eol_convention = self.eol_convention.encode("ascii")
             chars = self.eol_re.sub(r"\n", chars)
 
         self.text.delete("1.0", "end")