On 2021-09-30 07:21, Chris Angelico wrote:
On Thu, Sep 30, 2021 at 4:19 PM Steven D'Aprano <steve@pearwood.info> wrote:
On Wed, Sep 29, 2021 at 02:09:03PM -0700, Guido van Rossum wrote:
Over in typing-sig we're considering a new syntax for callable *types*, which would look like (int, int, str) -> float. A matching syntax for lambda would use a different arrow, e.g. (x, y, z) => x+y+z.
I like arrow operators :-)
But I fear that it will be too easy to misread `=>` as greater than or equal to, especially when skimming code.
Assuming that they need to be different arrows, how do you feel about `->` for types and annotations, and `-->` for lambdas? Or `->>`?
JavaScript uses => for functions, and the confusion with ">=" doesn't seem to be a major problem with it.
C# also uses "=>".