String interpolation is one of the things that I've never understood about python. I'm not a massive fan of Ruby's particular syntax for it[1], but not having a

String interpolation is one of the things that I've never understood about python. I'm not a massive fan of Ruby's particular syntax for it[1], but not having any syntax at all feels like such a massive oversight. And then I realize that it's probably a deliberate omission and that just seems really really weird to me. So I'm happy to see this, even if I'm probably too conservative to use it in my day job. And I didn't know about the coding: thing, and it looks like this method could also be used on my other python-wtf, which makes me even happier. (My other python-wtf is that there really ought to be nicer syntax for a['b']. For a while I thought that a::b would be nice, but then I remembered that that could be a slice, so it can't be parsed reliably. a$b is probably my next choice. Or even require that kind of slice to be written with a space or something, like "a: :b".) [1] Requiring braces even for a simple variable name seems like a poor decision. There's a little-known language called Haxe which IIRC gets it right: you can embed variables with just "hello $foo", or expressions with "your score is ${kills-deaths}". I get that Ruby allows unusual characters in variable names, and it's not obvious whether "is this yours, #name?" means #{name?} or #{name}?. But I'd rather have that potential for confusion than force the braces even when there's no ambiguity.