code blocks in Python

[JCM]

Hung Jung Lu <hungjunglu at yahoo.com> wrote:
...

> It just occurred to me a better syntax:

> def A:
>     x = 1
>     y = 2

> def B:
>     z = x + y
>     print z

> No new keyword needed, beside, it uses the same keyword as function
> definition, so the purpose of the code block is clear: it's something
> that you will invoke.

I dislike this because it looks too much like function definition
(which I realize was your intent).  The problem is that name-lookup in
function bodies is lexical, but the proposed semantics for name-lookup
in codeblocks is dynamic.