Values and objects

[Rotwang]

On 11/05/2014 04:11, Steven D'Aprano wrote:
> [...]
>
> And try running
> this function in both 2.7 and 3.3 and see if you can explain the
> difference:
>
> def test():
>      if False: x = None
>      exec("x = 1")
>      return x

I must confess to being baffled by what happens in 3.3 with this 
example. Neither locals() nor globals() has x = 1 immediately before the 
return statement, so what is exec("x = 1") actually doing?