From: Andrew M. Kuchling <amk@amk.ca>
Date: Sat, 7 Aug 2004 17:41:54 +0000 (+0000)
Subject: [Bug #990792] Mention that repl can be a callable
X-Git-Tag: v2.4a3~361
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=43ab0cd174c330d5338c395c1f1aae8a0aaffa2d;p=python

[Bug #990792] Mention that repl can be a callable
---

diff --git a/Lib/sre.py b/Lib/sre.py
index 0ff70dc108..bb4bc1678a 100644
--- a/Lib/sre.py
+++ b/Lib/sre.py
@@ -139,7 +139,9 @@ def search(pattern, string, flags=0):
 def sub(pattern, repl, string, count=0):
     """Return the string obtained by replacing the leftmost
     non-overlapping occurrences of the pattern in string by the
-    replacement repl"""
+    replacement repl.  repl can be either a string or a callable;
+    if a callable, it's passed the match object and must return
+    a replacement string to be used."""
     return _compile(pattern, 0).sub(repl, string, count)
 
 def subn(pattern, repl, string, count=0):
@@ -147,7 +149,9 @@ def subn(pattern, repl, string, count=0):
     new_string is the string obtained by replacing the leftmost
     non-overlapping occurrences of the pattern in the source
     string by the replacement repl.  number is the number of
-    substitutions that were made."""
+    substitutions that were made. repl can be either a string or a
+    callable; if a callable, it's passed the match object and must
+    return a replacement string to be used."""
     return _compile(pattern, 0).subn(repl, string, count)
 
 def split(pattern, string, maxsplit=0):