Licheng Fang wrote: > I mean, all the class instances that equal to each other should be > reduced into only one instance, which means for instances of this > class there's no difference between a is b and a==b.
If you only want that if "a == b" is True also "a is b" is True, overload the is_ attribute of your class. Personally, I don't see any advantage in this. Regards, Björn -- BOFH excuse #352: The cables are not the same length. -- http://mail.python.org/mailman/listinfo/python-list
