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Comment by gnulinux | Hacker News Reader

I would still prefer having a multiline lambda. We have this:

    def f(x):
      y = foo(x)
      z = bar(y)
      // ...
      return x
    some_obj.do_later(t, f, a, b, c)

I would prefer:

    some_obj.do_later(t, lambda x: {
      y = foo(x)
      z = bar(y)
      // ...
      return x
    }, a, b, c)

Maybe ( instead of {? I'm not sure that's possible to parse. Regardless, something like this would be good.

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Yes, I have wanted that before, and it could use existing valid syntax:

    some_obj.do_later(t, (lambda x:
        # (presently only a single non-comment line would be valid)
        x
    ), a, b, c)

In Python people are encouraged to follow styles for code as a communication tool between developers. If you just really want your code to "look nice" you can have things like this:

  def begin(*args):
    return args[-1]

  begin(
      func := lambda x, y: begin(
          z := int(input()),
          x + y + z
      ),
      func(1, 2)
  )

from `https://news.ycombinator.com/item?id=23346534`

I suppose lambdas are already a bit weird for ending with a : without starting a new code block.

Good luck fixing that though.

Reply on news.ycombinator.com