Steve Howell wrote: > FWIW there's the possibility that even without a > subexpression syntax, some Python implementations > would detect the duplication of x*x and optimize that > for you. It would have to know that x*x had no side > effects, which I think is a safe assumption even in a > dynamic language like Python.
No, x may be an object that has the __mul__ special method, and it may have side effects. -- Regards, Tijs -- http://mail.python.org/mailman/listinfo/python-list