[Python-ideas] Briefer string format

[Steve Dower]

I'd rather keep the transform as simple as possible. If text formatting is your bottleneck, congratulations on fixing your network, disk, RAM and probably your users.

Those who need to micro-optimize this code can do what you suggested by hand - there's no need for us to make our lives more complicated for the straw man who has a string formatting bottleneck and doesn't know enough to research another approach.

Cheers,
Steve

Top-posted from my Windows Phone
________________________________
From: Alexander Belopolsky<mailto:alexander.belopolsky at gmail.com>
Sent: ‎7/‎20/‎2015 18:40
To: Eric V. Smith<mailto:eric at trueblade.com>
Cc: python-ideas<mailto:python-ideas at python.org>
Subject: Re: [Python-ideas] Briefer string format


On Mon, Jul 20, 2015 at 4:20 PM, Eric V. Smith <eric at trueblade.com<mailto:eric at trueblade.com>> wrote:
And thinking about it yet some more, I think the easiest and most
consistent thing to do would be to translate it like:

f'{a[0]}{b[c]}' == '{[0]}{[c]}'.format(a, b)

I think Python can do more at compile time and translate

f"Result1={expr1:fmt1};Result2={expr2:fmt2}"

to bytecode equivalent of

"Result1=%s;Result2=%s" % ((expr1).__format__(fmt1), (expr2).__format__(fmt2))

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