Well, thank you for your answer, Ken, I guess it is probably a matter of personal taste. Perhaps a reminiscence of my C background. However, as far as the gotchas are concerned, if you look at the one-liner in this post I made two days ago Re^2: How to calculate the sum of columns to be equal to 100?, you'll see that I did not fall in any of the two traps you're mentioning: I am using print, not printf, when I don't need specific formatting (it is actually extremely rare that I use printf), and I am adding a new line in the formatting when needed, nothing particularly complicated. As for the use of the fat comma (=>), I found it slightly distracting, I actually had to think a couple of seconds to understand its meaning in this context. But, again, maybe a prejudice due to C reminiscences on my part.