[Python-ideas] nonlocal functions

[Masklinn]

On 21 Oct 2009, at 12:03 , Carl Johnson wrote:
>
> This is all fantasy, but what is your proposal when this happens:
>
> def foo():
>   let a = 1
>   stuff
>   stuff
>   let a = 2 #Oops, forgot about already declaring it!
>
It could be a noop, but I think a warning (or an error if scopes are  
statically checked) would be a smarter idea, make the programmer aware  
that something weird's happening.

> I also imagine that you won't allow a bare "let a"? Or does it just
> set itself to None?
There's not much sense in a bare `let a` imo, if you want it to be  
nothing, just write `let a = None`.