3 ms·

I saw that and was like "Oh, that'd be a handy feature for a lot of other programming languages too." But the more I think about it, the more I'd rather have a

I saw that and was like "Oh, that'd be a handy feature for a lot of other programming languages too." But the more I think about it, the more I'd rather have a feature that takes a list of expressions and converts it into a dict where the keys are the expression text and the values are the values of those expressions. Basically, syntactic sugar for this: { k: eval(k) for k in ('theta', 'delta.days', 'cos(radians(theta))') } This would trivially subsume the f'{user=}' syntax for the example given: just print out the dictionary. But it'd also be useful for: filling template dictionaries; printing out status pages for HTTP webservers; returning multiple variables from a function; flattening out complex data structures; creating dispatch tables out of local functions. You could even have a syntax like locals('theta', 'delta.days') and keep it familiar.

elcritch 7y ago
Pretty trivial to do with proper macros in a language. Julia has macros for printing variables and values, like `@debug(var)`. There's an Elixir library with macros to make a map (dictionary) using the variable names passed in [1]: iex> import ShorterMaps ...> name = "Chris" ...> id = 6 ...> ~M{name, id} %{name: "Chris", id: 6} Though wether its a good idea or not is another question. ;) If you want to do the type of programming you're talking about you should try Elixir/Julia/Clojure(/Rust?)... or any number of other languages with macros. 1: https://github.com/meyercm/shorter_maps https://github.com/meyercm/shorter_maps
airstrike 7y ago
Can't you build your own function using format()? f-strings are just syntactic sugar for format() so presumably you can