Skip to content(if available)orjump to list(if available)

Python f-string cheat sheets (2022)

Python f-string cheat sheets (2022)

4 comments

·August 21, 2025
Visit

nickcw

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.

ayhanfuat

> if you look at the cheat sheet, they are no longer simple.

Most of the formatting options in the cheat sheet have always been available with f-strings. They are part of the Format Specification Mini Language (https://docs.python.org/3/library/string.html#format-specifi...) and both string.format and f-strings use the same spec. f-strings have some additional capabilities like inline expressions and debugging/logging with `=`.

asicsp

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

xavdid

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