[Python-ideas] Syntax for passing lambdas to functions

[Greg Ewing]

Chris Angelico wrote:
> It's
> problematic because it's still legal - if it threw a SyntaxError, it
> would at least be visible, but it doesn't:
> 
>     spam=fire_the_ducks(42)
>     f(onclick()=spam)

That's equivalent to

    spam = fire_the_ducks(42)
    f(onclick = lambda: spam)

which is not a syntax error either, but it's just as wrong,
and I'm not convinced that it's a harder mistake to make.

For what it's worth, the following *could* be made to work:

    spam() = fire_the_ducks(42)
    f(onclick = spam)

-- 
Greg