Personally, I'm waiting for one of the proponents of such a scheme to
come up with an implementation. If it works and doesn't render
existing Python code illegal (apart from adding the new reserved word
'end') AND enough people can agree one a solution, I'm happy to make
it a permanent part of Python.
Hint: if you want the 'end' line aligned under the block as Tim
suggests you're gonna have a lot more changes to the grammar and
compiler to make!
--Guido van Rossum, CWI, Amsterdam <Guido.van.Rossum@cwi.nl>