bug#3991: 23.1; autoindent problem with new exception formatting in lisp/progmodes/python.el

Python2.5 introduced the available use of "finally" with
"except" in the same "try" exception handling block.  The
standard GNU Emacs Python mode (python.el) won't perform an
autoindent correctly when the code reaches the "finally"
clause - e.g.:

def myfunc():
    try:
        foo()
    except Bar, e:
        pass
    else:
        foo()
finally:


this patch fixes the problem for me:

--- python.el.orig      2009-06-21 14:08:04.000000000 +0930
+++ python.el.new       2009-07-31 16:27:27.000000000 +0930
@@ -748,7 +748,7 @@
   '(("else" "if" "elif" "while" "for" "try" "except")
     ("elif" "if" "elif")
     ("except" "try" "except")
-    ("finally" "try" "except"))
+    ("finally" "else" "try" "except"))
   "Alist of keyword matches.
 The car of an element is a keyword introducing a statement which
 can close a block opened by a keyword in the cdr.")