[Python-ideas] pep 312 - implicit lambdas idea

[Bruce Leban]

I notice you said "args" not "arg". How would you parse foo(x, y -> x + y)?
Even if the compiler can parse it, how about the human reading the code?

If lambda wasn't already there, I could see using (args) -> expr syntax but
I think there shouldn't be two ways to do something so simple.

If you really want a shorter syntax, the obvious choice is foo(λx, y: x +
y).

--- Bruce


On Fri, Aug 7, 2009 at 5:49 PM, Greg Ewing <greg.ewing at canterbury.ac.nz>wrote:

> My suggestion for a lightweight lambda syntax is
>
>  args -> expr
>
> Examples:
>
>  map(x -> x + 5, something)
>
>  d = defauldict(->[])
>
> --
> Greg
>
>
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