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From: Mild Shock <janburse@fastmail.fm>
Newsgroups: comp.lang.python
Subject: Re: Two aces up Python's sleeve (Posting On Python-List Prohibited)
Date: Fri, 8 Nov 2024 02:40:56 +0100
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Well you can use your Browser, since
JavaScript understand post and pre increment:

 > x = 5
5
 > x ++
5
 > x = 5
5
 > ++ x
6

So we have x ++ equals in Python:

     x + = 1
     x - 1

And ++ x equals in Python:

     x += 1
     x

But I don't know how to combine an
assignment and an expression into one
expession. In JavaScript one can use

the comma:

 > x = 5
5
 > y = (x += 1, x - 1)
5
 > x = 5
5
 > y = (x += 1, x)
6

But in Python the comma would create a tuple.

Lawrence D'Oliveiro schrieb:
> On Thu, 07 Nov 2024 12:55:53 +0530, Annada Behera wrote:
> 
>> I heard this behavior is because python's integers are immutable.
> 
> Nothing to do with that.
> 
>> ++x or x++ will redefine 5 to 6, which the interpreter forbids ...
> 
> One of those is actually syntactically valid.
> 
> It just won’t do what you expect it to do.
>