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From: Marko Rauhamaa <marko@pacujo.net>
Newsgroups: comp.lang.python
Subject: Re: List of Functions
Date: Mon, 28 Mar 2016 16:40:44 +0300
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Dan Sommers <dan@tombstonezero.net>:

> On Mon, 28 Mar 2016 11:58:54 +0300, Marko Rauhamaa wrote:
>
>> As for Python, I don't feel a great need for anonymous functions.
>> However, I keep running into a need for anonymous classes, or,
>> rather, classless objects. Not a biggie. I just create a one-off
>> inner class and instantiate it, but I do appreciate Java's syntactic
>> innovation.
>
> And I always curse Java for having to create an inner class and a
> method when all I need is a simple function. :-)
>
> I think it's Steven D'Aprano who keeps pointing out that you can
> always name your tiny helper functions instead of using lambda:
>
>     def some_complex_function():
>         def f(x) = x + 2
>         some_library_that_wants_a_callback(f)
>         some_library_that_wants_a_callback(lambda x: x + 2)
>
> Both calls to some_library_that_wants_a_callback run the same.

Yes, but I've come to realize that I quite often need more than a
function: I need an object with behavior. The solution is to use a
"helper" class.


Marko