From: "Oren Tirosh" <oren-py-d@hishome.net>
> > 2) Without the ability to define a scope at will, RAiI becomes less useful.
>
> local f=open('sdaskdfjhaslk')
> ...
> del l
>
> Deleting this kind of variable (whether we call it local or something
> else) means you want its __del__ executed now. It is also an assertion
> that its reference count is supposed to be 1 at this point. This not only
> gives you the ability to define a scope at will, it lets you create
> scopes dynamically. It's probably useful for more than just RAiI. Perhaps
> too useful.
it is not about variables, it is about objects, too much fragile magic
local f=open('sdaskdfjhaslk')
w = f.write
w(...)
del f # ???
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