From 9e6aa9d55b194e7499e39af69e675fd7a5d9639f Mon Sep 17 00:00:00 2001
From: Guido van Rossum <guido@python.org>
Date: Tue, 28 May 1996 23:01:28 +0000
Subject: [PATCH] avoid eval() like the plague

---
 Lib/regsub.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Lib/regsub.py b/Lib/regsub.py
index 7eb175b60ec..507e542882f 100644
--- a/Lib/regsub.py
+++ b/Lib/regsub.py
@@ -107,6 +107,7 @@ def expand(repl, regs, str):
 		return repl
 	new = ''
 	i = 0
+	ord0 = ord('0')
 	while i < len(repl):
 		c = repl[i]; i = i+1
 		if c <> '\\' or i >= len(repl):
@@ -114,7 +115,7 @@ def expand(repl, regs, str):
 		else:
 			c = repl[i]; i = i+1
 			if '0' <= c <= '9':
-				a, b = regs[eval(c)]
+				a, b = regs[ord(c)-ord0]
 				new = new + str[a:b]
 			elif c == '\\':
 				new = new + c