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Date: Tue, 2 Jun 2015 02:10:17 +1000
Subject: Re: What is considered an "advanced" topic in Python?
From: Chris Angelico <rosuav@gmail.com>
Cc: "python-list@python.org" <python-list@python.org>
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Xref: csiph.com comp.lang.python:91691

On Tue, Jun 2, 2015 at 1:17 AM, BartC <bc@freeuk.com> wrote:
> On 01/06/2015 14:52, Chris Angelico wrote:
>> It's
>>
>> like the eternal debate about assignment and whether "x =3D x + 1" is
>> nonsense, with advocates preferring "x :=3D x + 1" as being somehow
>> fundamentally different. It isn't. It's just a notational change, and
>> not even a huge one. (Though I do see the line of argument that it
>> should be "x <- x + 1" or something else that looks like an arro'w.)
>
>
> 'x <- x + 1' already means something as an expression (whether x is less
> than (-x+1). 'x <=3D x + 1' has the same problem.
>
> But I have used "=3D>" before,  for left-to-right assignment. (Mostly I u=
se
> ":=3D")

In Python it does, yes; I'm talking about the language design
advocates. Some recommend a two-character ASCII notation like "<-" or
"<=3D", others prefer a single-character symbol eg "=E2=86=90" or "=E2=87=
=A6", but
whatever it is, it will have no meaning in that language other than
assignment. And yes, I can see the value of using an arrow to indicate
assignment... but I don't really see a huge problem with using "=3D" to
mean assignment, given that people from a mathematical background will
have to grok the entire concept of temporal truth anyway. Whatever
symbol you use, it has to be explained.

ChrisA