[Python-checkins] r68118 - python/trunk/Lib/re.py

[georg.brandl]

Author: georg.brandl
Date: Thu Jan  1 13:00:19 2009
New Revision: 68118

Log:
#4185: clarify escape behavior of replacement strings.


Modified:
   python/trunk/Lib/re.py

Modified: python/trunk/Lib/re.py
==============================================================================
--- python/trunk/Lib/re.py	(original)
+++ python/trunk/Lib/re.py	Thu Jan  1 13:00:19 2009
@@ -145,7 +145,8 @@
     """Return the string obtained by replacing the leftmost
     non-overlapping occurrences of the pattern in string by the
     replacement repl.  repl can be either a string or a callable;
-    if a callable, it's passed the match object and must return
+    if a string, backslash escapes in it are processed.  If it is
+    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)
 
@@ -155,7 +156,8 @@
     non-overlapping occurrences of the pattern in the source
     string by the replacement repl.  number is the number of
     substitutions that were made. repl can be either a string or a
-    callable; if a callable, it's passed the match object and must
+    callable; if a string, backslash escapes in it are processed.
+    If it is 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)