Class Variable Access and Assignment

[Steven D'Aprano]

On Thu, 03 Nov 2005 04:30:09 -0800, Paul Rubin wrote:

> Steve Holden <steve at holdenweb.com> writes:
>> > class A:
>> >   a = 1
>> > b = A()
>> > b.a += 2
>> > print b.a
>> > print A.a
>> > Which results in
>> > 3
>> > 1
>> >
>> I don't suppose you'd care to enlighten us on what you'd regard as the
>> superior outcome?
> 
>     class A:
>       a = []
>     b = A()
>     b.append(3)
>     print b.a
>     print a.a
> 
> Compare and contrast.


I take it then that you believe that ints like 1 should be mutable like
lists? Because that is what the suggested behaviour implies.

Ah, what a grand thing that would be! We could say:

0 += 1
1 += 2
7 -= 1

and then have 0 + 1 == 7. Think of the obfuscated code we could write!



-- 
Steven.