From b1908846af1c70e77917d56798daa8242d80d2b5 Mon Sep 17 00:00:00 2001
From: Guido van Rossum <guido@python.org>
Date: Thu, 19 Feb 1998 21:18:56 +0000
Subject: Fix for literal null bytes -- these must be replaced by the four
 characters \, 0, 0, 0.

---
 Lib/re.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Lib/re.py b/Lib/re.py
index 3fb9408..e67d142 100644
--- a/Lib/re.py
+++ b/Lib/re.py
@@ -66,8 +66,9 @@ def escape(pattern):
     alphanum=string.letters+'_'+string.digits
     for char in pattern:
 	if char not in alphanum:
-	    result.append('\\')
-	result.append(char)
+	    if char == '\000': result.append(r'\000')
+	    else: result.append('\\' + char)
+	else: result.append(char)
     return string.join(result, '')
 
 def compile(pattern, flags=0):
-- 
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