Ooops!

Erik Max Francis max at alcyone.com
Sat Aug 24 22:07:50 CEST 2002


"Mr. Neutron" wrote:
> 
> Nope classes are not the same thing in memory.
> Somehow my variable is being shared between both objects.

Note that all "variables" in Python are really just bindings, and all
the assignment statement does is rebind names.  So when you have
multiple bindings to the same mutable object, changes in one will affect
the other:

>>> a = [1, 2, 3]
>>> b = a
>>> b.append(4)
>>> a
[1, 2, 3, 4]

If you want a separate copy, you will have to do so explicitly.

-- 
 Erik Max Francis / max at alcyone.com / http://www.alcyone.com/max/
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 A lambda calculus explorer in Python.



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