On Sat, Oct 3, 2015 at 1:27 PM, Steven D'Aprano <steve@pearwood.info> wrote:
On Fri, Oct 02, 2015 at 09:00:56AM -0700, Guido van Rossum wrote:
Bingo. IMO the exact same arguments that show why f'{x} {y}' is better than '%s %s' % (x, y) applies to byte strings. It would be totally acceptable if it only took bytes (and bytearray, and memoryview) and numbers (which we can guarantee are rendered in ASCII only).
As Chris A pointed out earlier, identifiers are not ASCII only. What are we to make of something like this?
bf'{αριθμός + 1}'
And don't say "re-write your code to only use ASCII variable names" :-)
It should be technically legal, btw; it's just going to look very odd. The check for ASCII-only has to be done _after_ the fracturing into strings and expressions. But I don't like how that reads. ChrisA