Twice instanciation

[Salvatore]

vincent wehren wrote:

> "Salvatore" <artyprog at wanadoo.fr> schrieb im Newsbeitrag
> news:bcakmg$jv7$1 at news-reader14.wanadoo.fr...
> 
>>Hello,
>>
>>Is it possible to avoid twice instanciation
>>of the same variable ?
> 
> 
> Maybe this helps:
> http://aspn.activestate.com/ASPN/Python/Cookbook/Recipe/52558
> 
> Regards,
> Vincent Wehren

In fact that is not exactly what I want.
I don't want a unique instance of a class, but i want
to avoid a same name of an instance being used twice.

Thanks again Vincent