[Python-ideas] A "local" pseudo-function

Steven D'Aprano steve at pearwood.info
Tue May 1 03:11:46 EDT 2018

On Tue, May 01, 2018 at 06:06:06PM +1200, Greg Ewing wrote:
> Steven D'Aprano wrote:
> >Pascal, for example, had lexical scoping back in the 1970s, but 
> >no closures.
> Well, it kind of had a limited form of closure. You could pass
> a procedure or function *in* to another procedure or function
> as a parameter, but there was no way to return one or pass it
> out in any way. This ensured that the passed-in procedure or
> function couldn't outlive its lexical environment.

So what was the closure? If the surrounding function was still running, 
there was no need to capture the running environment in a closure?

Not a rhetorical question, I'm genuinely unsure.


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