[Python-Dev] Subtle difference between f-strings and str.format() (original) (raw)

Tim Delaney timothy.c.delaney at gmail.com
Wed Mar 28 17:09:32 EDT 2018


On 29 March 2018 at 07:39, Eric V. Smith <eric at trueblade.com> wrote:

I’d vote #3 as well.

> On Mar 28, 2018, at 11:27 AM, Serhiy Storchaka <storchaka at gmail.com> wrote: > > There is a subtle semantic difference between str.format() and "equivalent" f-string. > > '{}{}'.format(a, b) > f'{a}{b}' > > In most cases this doesn't matter, but when implement the optimization that transforms the former expression to the the latter one ([1], [2]) we have to make a decision what to do with this difference. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.python.org/pipermail/python-dev/attachments/20180329/422c5f35/attachment.html>



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