any trick to allow anonymous code blocks in python?

[gabriele renzi]

il Sat, 26 Jun 2004 00:58:49 -0500, Doug Holton <insert at spam.here> ha
scritto::

>Perhaps that should be a proposal for Python.  It's like the decorators 
>proposal (318).  It just saves an extra step and is helpful for 
>framework designers (people who use metaclasses, etc.).  Instead of 
>having to do this (or the other ways I mentioned):
>def onclick(..):
>    ...code here
>b.onclick = onclick
>
>You can save a step and just do like you said:
>def b.onclick(...):
>    ...code here
>

just my two cents: you can do this in ruby with nearly the same
syntax:
def b.onkclick()
 ..code here..
end

But even if that sounds like a great idea I have to admit it's not
widely used, probably because every framework with callbacks like
these already uses the common bind-a-function-to-this-event idiom,
instead of allowing method overriding.

 Maybe this relates to the fact that GUI toolkits are mostly C/C++
based, and that years of limited languages have directed our mind
toward the 'you have to subclass' dictat. I wonder if SmallTalk GUIs
have something like this. 

It would be nice to have singleton method definition with this syntax
in python, anyway.