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Unlike f -strings, the {} placeholders are not expressions and you can't use arbitrary python expressions in the template.
This is a good thing, you wouldn't want end-users to be able to.
Is there an easy way with python f-strings to fix the number of digits after the decimal point?
(specifically f-strings, not other string formatting options like. format or %) for example, let's s
I have a string in which i would like curly-brackets, but also take advantage of the f-strings feature.
Is there some syntax that works for this?
Here are two ways it does not work.
I would like to
L specifies that a following a, a, e, e, f, f, g, or g conversion specifier applies to a long double argument.
The same rules specified for fprintf apply for printf, sprintf and similar functions.
To answer your second question, string formatting happens at the same time as any other operation - when the string formatting expression is evaluated.
And python, not being a lazy.