Class Variable Access and Assignment

[Steven D'Aprano]

On Thu, 03 Nov 2005 13:35:35 +0000, Antoon Pardon wrote:

> Suppose I have code like this:
> 
>   for i in xrange(1,11):
>     b.a = b.a + i
> 
> Now the b.a on the right hand side refers to A.a the first time through
> the loop but not the next times. I don't think it is sane that which
> object is refered to depends on how many times you already went through
> the loop.

Well, then you must think this code is *completely* insane too:

py> x = 0
py> for i in range(1, 5):
...     x += i
...     print id(x)
... 
140838200
140840184
140843160
140847128



Look at that: the object which is referred to depends on how many times
you've already been through the loop. How nuts is that?

I guess that brings us back to making ints mutable. I can't wait until I
can write 1 - 0 = 99 and still be correct!


-- 
Steven.