or print('{a=} and b={a}') This already exists. Kindly stop reinventing the wheel. the thing that does not exist now is: print('In this context, variable', 'name', 'means an esoteric thing that we all know about') where `'name'` can be substituted easily (the 'nameof' case) but it could be, as an example: print('In this context, variable {name!i} means an esoteric thing that we all know about') (my favorite, but interpreter maintenance costs trumps my preferences) or could be done as: print('In this context, variable', typing.ID['name'], 'means an esoteric thing that we all know about') which wouldn't change the interpreter at all, (but would change the stdlib). Either way, the 'nameof'-support needs editor support, because it is an *editing* use case, the interpreter just doesn't care. (It could, but it *can't* do anything without the *editor* responding to it) Em dom., 24 de set. de 2023 às 11:13, Dom Grigonis <dom.grigonis@gmail.com> escreveu:
On 24 Sep 2023, at 16:42, Stephen J. Turnbull < turnbull.stephen.fw@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 = 1print(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))