[Python-Dev] PEP-498: Literal String Formatting
steve at pearwood.info
Mon Aug 10 19:07:13 CEST 2015
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()?
More information about the Python-Dev