[Tutor] FYI

[Pedro Diaz Jimenez]

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Wow, I didn't know this:

Python 1.5.2 (#0, Apr  3 2000, 14:46:48)  [GCC 2.95.2 20000313 (Debian 
GNU/Linux)] on linux2
Copyright 1991-1995 Stichting Mathematisch Centrum, Amsterdam
>>> a=[1,2,3,4,5,6]
>>> b=a
>>> a.remove(3)
>>> a
[1, 2, 4, 5, 6]
>>> b
[1, 2, 4, 5, 6]
>>> c=a[:]
>>> a.remove(1)
>>> a
[2, 4, 5, 6]
>>> b
[2, 4, 5, 6]
>>> c
[1, 2, 4, 5, 6]
>>> a={}
>>> b=a
>>> a[1]='1'
>>> a
{1: '1'}
>>> b
{1: '1'}
>>> c=a[:]

Maybe I'm not the only that missed that part on the tutorial, so thats why I 
post this ;D

Moral:  lists, dictionaries (and all other objects???) are copies by 
reference, be careful when you pass them to functions

Cheers
Pedro
- -- 

/*
 * Pedro Diaz Jimenez
 * pdiaz88@terra.es 
 * pdiaz@acm.asoc.fi.upm.es
 *
 * La sabiduria me persigue, pero yo soy mas rapido
 */
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