> On 24 Sep 2023, at 16:42, Stephen J. Turnbull > <turnbull.stephen...@u.tsukuba.ac.jp> wrote: > > Dom Grigonis writes: > >>> But it's far from concise >> What could be more concise? > > A notation where you don't have to repeat a possibly long expression. > For example, numerical positions like regular expressions. Consider > this possible notation: > > f'There are {count} expression{pluralize(count)} denoted by {=0}.' > > Otherwise it isn't great, but it's definitely concise. In the > simplest case you could omit the position: > > f'{=} is {count} at this point in the program.' Hmmm...
>>> and violates DRY -- it doesn't solve the problem of the first >>> draft typo. > >> And how is “postfix =“ different? > > You *can't* use different identifiers for the name and value in > "postfix =": the same text is used twice, once as a string and one as > an identifier. I see what you mean, but this property is arguably intrinsic to what it is. And is part of f-strings vs explicit formatting property too: variable = 1 print(f'{variable=} and b={variable}') # VS msg = 'variable={v} and b={v}' print(msg.format(v=variable)) Especially, where msg can be pre-stored and reused. Then maybe not making it f-string only is a better idea. So that one can do: msg = '{a!i}={a} and b={a}' print(msg.format(a=variable))
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