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Re: Alternative to multi-line lambdas: Assign-anywhere def statements

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On 2/11/2015 8:04 AM, Albert van der Horst wrote:

> It is not until we assign the object to a name (which becomes thereby a function)
> that the __name__ thingy comes into play, like so.

But __name__ would not come into play.

> f = x->x**2

This would mean to create an anonymous function object and then bind 'f' 
to that object in the current local namespace.  It would be the same as 
the discouraged

f = lambda x: x**2

> I've heard arguments that with -> the __name__ is not filled in correctly.

Because local namespace name binding does not and should not mutate the 
object the name is bound to.

> I can't see why the parser would understand more easily
>
> def f(x):
>      return x**2
> than
>
> f = x->
>      return x**2

The parser parses both equally well.  That is not the issue.

-- 
Terry Jan Reedy

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Re: Alternative to multi-line lambdas: Assign-anywhere def statements Ethan Furman <ethan@stoneleaf.us> - 2015-01-24 17:58 -0800
  Re: Alternative to multi-line lambdas: Assign-anywhere def statements Yawar Amin <yawar.amin@gmail.com> - 2015-01-24 18:30 -0800
    Re: Alternative to multi-line lambdas: Assign-anywhere def statements Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-01-25 15:27 +1100
      Re: Alternative to multi-line lambdas: Assign-anywhere def statements Yawar Amin <yawar.amin@gmail.com> - 2015-01-25 17:26 -0800
        Re: Alternative to multi-line lambdas: Assign-anywhere def statements Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-01-26 13:46 +1100
  Re: Alternative to multi-line lambdas: Assign-anywhere def statements albert@spenarnc.xs4all.nl (Albert van der Horst) - 2015-02-11 13:04 +0000
    Re: Alternative to multi-line lambdas: Assign-anywhere def statements Clarence <clarence1126@gmail.com> - 2015-02-11 06:28 -0800
    Re: Alternative to multi-line lambdas: Assign-anywhere def statements Ethan Furman <ethan@stoneleaf.us> - 2015-02-11 08:52 -0800
    Re: Alternative to multi-line lambdas: Assign-anywhere def statements Terry Reedy <tjreedy@udel.edu> - 2015-02-11 21:06 -0500
    Re: Alternative to multi-line lambdas: Assign-anywhere def statements Ian Kelly <ian.g.kelly@gmail.com> - 2015-02-11 19:57 -0700
    Re: Alternative to multi-line lambdas: Assign-anywhere def statements Chris Angelico <rosuav@gmail.com> - 2015-02-12 14:56 +1100
    Re: Alternative to multi-line lambdas: Assign-anywhere def statements Ian Kelly <ian.g.kelly@gmail.com> - 2015-02-12 09:17 -0700

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