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

[Wes Turner]

On Mon, Aug 10, 2015 at 1:52 PM, David Mertz <mertz at gnosis.cx> wrote:

> 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()?
>>
>
#letsgoblues!

scope(**kwargs), lngb(**kwargs), lookup(**kwargs) could allow for local
attr override.


>
>>
>> --
>> Steve
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