diff options
| -rw-r--r-- | Lib/sre.py | 8 |
1 files changed, 6 insertions, 2 deletions
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): |