Is 'everything' a refrence or isn't it?

Christian Tismer tismer at stackless.com
Wed Jan 4 20:05:38 CET 2006


KraftDiner wrote:
> I was under the assumption that everything in python was a refrence...

This is true.

> so if I code this:
> lst = [1,2,3]

lst is a reference to a list that holds references to 1, 2, and 3

> for i in lst:

i is a reference to every element in the list, one ofter the other.
But this is not a ref to lst any longer, the list gets dereferenced
before getting at its contents, and only references to that are
returned.

>    if i==2:
>       i = 4

You now have i as a reference to 4, during this cycle.

ciao - chris

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