Ah, these are great! f-strings are so powerful, but I can never remember the arcane little syntax. Definitely bookmarking this.

From the f-strings PEP 498

https://peps.python.org/pep-0498/

> This PEP is driven by the desire to have a simpler way to format strings in Python.

I think f-strings have become the thing they were trying to replace and they are now more complicated than the old % interpolation.

I still like f-strings and use them a lot but if you look at the cheat sheet, they are no longer simple.

See also this quiz: https://fstrings.wtf/

This looks like a cheatsheet for writing a hard-to-read Python script. I don't know who gets karmic brownie points for a f"{string:>20}" field, but under most normal cases it'd be better to use rjust() directly and not force people to remember Yet Another DSL.

Once a reader could be reasonably expected to consult reference material while working out what a print() is doing something has gone wrong. This is the programmer equivalent of wearing too much makeup.