Syntax for one-line "nonymous" functions in "declaration style"

[Paul Moore]

On Wed, 27 Mar 2019 at 08:25, Alexey Muranov <alexey.muranov at gmail.com> wrote:
>
> Whey you need a simple function in Python, there is a choice between a
> normal function declaration and an assignment of a anonymous function
> (defined by a lambda-expression) to a variable:
>
>     def f(x): return x*x
>
> or
>
>     f = lambda x: x*x
>
> It would be however more convenient to be able to write instead just
>
>     f(x) = x*x

Why? Is saving a few characters really that helpful? So much so that
it's worth adding a *third* method of defining functions, which would
need documenting, adding to training materials, etc, etc?

-1 on this.

Paul