[Python-ideas] easy thread-safety [was: fork]

[Ron Adam]

On 08/20/2015 10:57 PM, Steven D'Aprano wrote:
> On Thu, Aug 20, 2015 at 04:02:52PM -0400, Ron Adam wrote:
>
>> >The semantics is to have a way to make names (for mutable objects) in
>> >outer scopes not be visible to function defined in inner scopes.
> Why would you want that? This is a serious question -- there is already
> an easy way to ensure that two functions can't see the other's
> variables:*don't*  nest them. The reason for nesting them is to ensure
> that the inner function*can*  see the outer's variables. That's the
> whole point of nesting.

Ok, I'm convinced it's wouldn't do what I initially was thinking.  It 
could possibly offer some benefits to catch some programming errors, but 
not enough, and would not help with threads.

Hmmm... I think maybe I mixed up some dynamic scope behaviour with 
static scope in my initial thoughts.  That would be quite different, but 
not python.  (No, don't explain further, it was a mistake on my part, as 
I know the difference.)

Oh, and thanks to you and Andrew for the feedback, even though it didn't 
go anywhere.

Cheers,
   Ron