From 2adde0551a51002c9a43bfabf684be0c960ed192 Mon Sep 17 00:00:00 2001 From: Georg Brandl Date: Thu, 1 Jan 2009 12:00:19 +0000 Subject: [PATCH] #4185: clarify escape behavior of replacement strings. --- Lib/re.py | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/Lib/re.py b/Lib/re.py index ee962bbc8f8..2cf7132d3d9 100644 --- a/Lib/re.py +++ b/Lib/re.py @@ -145,7 +145,8 @@ 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. 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 @@ def subn(pattern, repl, string, count=0): 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)