[Python-ideas] Re: Shorthand syntax for lambda functions that have a single parameter

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 `->>`?