uh, no. whitespace block indentation means blocks have no delimiters. using "END IF" etc means you're adding a closing delimiter. python says: you don't need it.
really, though, this stuff is minor. any good editor will handle all this for you, whether with braces or without. the other language i like is LISP, which is diametrically opposite python in its use of ()s everywhere.
The goal of science is to build better mousetraps. The goal of nature is to build better mice.