[Tutor] decomposing a problem

[Avi Gross]

[REAL SUBJECT: What's this?]

Steven,

I am afraid you are right. I was not selfish enough about this. I have done
object-oriented programming in many other languages and I am afraid today it
showed. Think C++ or Java. Part of me continues to think in every language I
ever used, including human languages. So since the name of this variable is
a suggestion, it was not enforced by the interpreter and I was not reminded.

Be happy I even used an English word and not  something like idempotent or
eponymous
.
P.S. just to confuse the issue, some in JavaScript confusingly use both this
and self near each other.
P.P.S. Please pardon my puns, especially the ones you did not notice.

-----Original Message-----
From: Tutor <tutor-bounces+avigross=verizon.net at python.org> On Behalf Of
Steven D'Aprano
Sent: Tuesday, December 25, 2018 11:39 PM
To: tutor at python.org
Subject: Re: [Tutor] decomposing a problem

On Tue, Dec 25, 2018 at 10:25:50PM -0500, Avi Gross wrote:

> class chainable_list(list):
>     """Same as list but sort() can now be chained"""
>     def chainsort(this, *args, **kwargs):
>         this.sort(*args, **kwargs)
>         return this

In Python, it is traditional to use "self" rather than "this" as the
instance parameter.

Using "this" is not an error, but you can expect a lot of strange looks. 
Like a Scotsman in a kilt wandering down the middle of Main Street,
Pleasantville USA.



-- 
Steve
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