Add rsplit method for str and unicode builtin types.

SF feature request #801847.
Original patch is written by Sean Reifschneider.

1 files changed, 12 insertions, 0 deletions

diff --git a/Lib/string.py b/Lib/string.py
index 0a77f46..bc10c20 100644
--- a/Lib/string.py
+++ b/Lib/string.py
@@ -121,6 +121,18 @@ def split(s, sep=None, maxsplit=-1):
     return s.split(sep, maxsplit)
 splitfields = split
 
+# Split a string into a list of space/tab-separated words
+def rsplit(s, sep=None, maxsplit=-1):
+    """rsplit(s [,sep [,maxsplit]]) -> list of strings
+
+    Return a list of the words in the string s, using sep as the
+    delimiter string, starting at the end of the string and working
+    to the front.  If maxsplit is given, at most maxsplit splits are
+    done. If sep is not specified or is None, any whitespace string
+    is a separator.
+    """
+    return s.rsplit(sep, maxsplit)
+
 # Join fields with optional separator
 def join(words, sep = ' '):
     """join(list [,sep]) -> string