Let’s say I want to write a lambda function with no arguments that’s connected 
to a button in GUI coding, will blabla.connect(()=>print(“clicked”)) be used or 
will blabla.connect(=>print(“clicked”)) be used? 

Sent from my iPhone

> On 30 Sep 2021, at 7:53 PM, MRAB <pyt...@mrabarnett.plus.com> wrote:
> 
> On 2021-09-30 07:21, Chris Angelico wrote:
>>> On Thu, Sep 30, 2021 at 4:19 PM Steven D'Aprano <st...@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 "=>".
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