En Sun, 26 Aug 2007 22:58:35 -0300, bambam <[EMAIL PROTECTED]> escribi�:
> Ok, many environments are capable of cached evaluation > of functions without variable parameters so > range(5) > is cached, but > range(v) is re-evaluated every time. Is this defined > behaviour? The range builtin function returns a list, and lists are mutable objects, so it must return a *different* list each time. > That is, is it defined what Python does for > for i in f() > I'm sure it must be, but I haven't seen it yet. If I have > a user defined function returning a range, is it defined > that the range function is called on every loop? If I > have a function returning a range taking a parameter, > for i in f(v) > is it defined that the variable is evaluated for every loop? Find all the (mostly negative) answers yourself in <http://docs.python.org/ref/for.html> -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
