Python 1.6 The balanced language
timr at probo.com
Fri Sep 1 07:22:43 CEST 2000
ssthapa at harper.uchicago.edu (Suchandra Thapa) wrote:
>With python's lack of referential
>transparency, this will become a nightmare. E.g.
> def swap(x, y):
> t = y[x - 1]
> y[x - 1] = x
> x = t
> print x','y[x-1]
> x = 3
> y = [3, 2, 1]
> swap(x, y)
>prints 3 , 3 which is probably not the programmer intended.
When I type this into Python 1.5.2, I get 1 , 3. This is what I expected.
The outer value of x is not altered, although y is. Is that what you're
1 , 3
(3, [3, 2, 3])
- Tim Roberts, timr at probo.com
Providenza & Boekelheide, Inc.
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