Class Variable Access and Assignment

Stefan Arentz stefan.arentz at gmail.com
Thu Nov 3 15:37:54 CET 2005


Stefan Arentz <stefan.arentz at gmail.com> writes:

> Antoon Pardon <apardon at forel.vub.ac.be> writes:
> 
> ...
> 
> > Fine, we have the code:
> > 
> >   b.a += 2
> > 
> > We found the class variable, because there is no instance variable,
> > then why is the class variable not incremented by two now?
> 
> Because it really is executed as:
> 
>  b.a = b.a + 2
> 
>   1. get 't'b.a and store it in a temporary 't' (found the instance)

Oops.

   1. get b.a and store it in a temporary 't' (found the class variable 'a')

S.




More information about the Python-list mailing list