On Sun, Jun 22, 2008 at 11:44 AM, Josip <[EMAIL PROTECTED]> wrote: > I'm trying to limit a value stored by object (either int or float): > > class Limited(object): > def __init__(self, value, min, max): > self.min, self.max = min, max > self.n = value > def set_n(self,value): > if value < self.min: # boundary check > self.n = self.min > if value > self.max: > self.n = self.max > else: > self.n = value > n = property(lambda self : self._value, set_n) > > This works, except I would like the class to behave like built-in types, so > I can use it like this: > > a = Limited(7, 0, 10) > b = math.sin(a) > > So that object itself returns it's value (which is stored in a.n). Is this > possible? >
Not with normal vars, because = is a rebinding operator in Python, rather than assignment. You can do (close to) the above with object properties. David. -- http://mail.python.org/mailman/listinfo/python-list
