Russ wrote: >>>>x = complex(4) >>>>y = x >>>>y *= 2 >>>>print x, y > > (4+0j) (8+0j) > > But when I tried the same thing with my own class in place of > "complex" above, I found that both x and y were doubled. I'd like to > make my class behave like the "complex" class. Can someone tell me the > trick? Also, where can I find the code for for the "complex" class? I > hope it's written in Python! Thanks.
Have your __imul__ and such return new objects, and not perform in-place modification if you do not want x and y to refer to the same object after y*=2. /MiO -- http://mail.python.org/mailman/listinfo/python-list
