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Mon Aug 10 20:52:44 CEST 2015 · https://mail.python.org/pipermail/python-dev/2015-August/141182.html

I know. I elided including the nonexistent `nonlocals()` in there. But it
*should* be `lngb()`.  Or call it scope(). :-)
On Aug 10, 2015 10:09 AM, "Steven D'Aprano" <steve at pearwood.info> wrote:

> On Sun, Aug 09, 2015 at 06:14:18PM -0700, David Mertz wrote:
>
> [...]
> > That said, there *is* one small corner where I believe f-strings add
> > something helpful to the language.  There is no really concise way to
> spell:
> >
> >   collections.ChainMap(locals(), globals(), __builtins__.__dict__).
>
> I think that to match the normal name resolution rules, nonlocals()
> needs to slip in there between locals() and globals(). I realise that
> there actually isn't a nonlocals() function (perhaps there should be?).
>
> > If we could spell that as, say `lgb()`, that would let str.format() or
> > %-formatting pick up the full "what's in scope".  To my mind, that's the
> > only good thing about the f-string idea.
>
> I like the concept, but not the name. Initialisms tend to be hard
> to remember and rarely self-explanatory. How about scope()?
>
>
> --
> Steve
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Showing content from https://mail.python.org/pipermail/python-dev/2015-August/141182.html below:

[Python-Dev] PEP-498: Literal String Formatting