[Python-ideas] Enhance definition of functions

[Masklinn]

On 2013-07-31, at 08:37 , Haoyi Li wrote:

> I'd like multiline lambdas too, but the syntax is a thorny problem. F# is
> the only language I know (are there others?) that allows you to mix
> whitespace-delimited and paren-delimited expressions, e.g. with
> whitespace-blocks inside parens:
> 
> let f n = n + (
>    if n % 2 = 0 then
>        printf "lol"
>        1
>    else
>        printf "omg"
>        2
> )

Haskell can do that:

f n = n + (
  case n `mod` 2 of
    0 -> unsafePerformIO $ do
      putStrLn "lol"
      return 1
    1 -> unsafePerformIO $ do
      putStrLn "omfg"
      return 2
  )

although a difference is that it doesn't have statement blocks, only
expressions (`do` blocks are sugar for monadic chain expressions)