class variable won't icrement!

[Jp Calderone]

On Thu, Sep 12, 2002 at 12:18:32PM +0200, Roman Yakovenko wrote:
> Hi it is simple just change 
> self.id = self.id + 1 
> 
> To 
> 
> test.id += 1
> 
> Roman
> 


  Actually, that turns out not to be the case.  += behaves differently
depending on its arguments - sometimes rebinding the name, sometimes
mutating in place.  For integers, it can not mutate in place (ints are
immutable, of course!) so "self.id = self.id + 1" is exactly the same as
"self.id += 1".  Were 'id' a mutable type, say a list, then the above
solution would work (assuming you changed 1 to something iterable).

 Jp

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