Re: [Quantlib-users] Observable Python objects

Posted by Luigi Ballabio-2 on Nov 10, 2003; 8:44am
URL: http://quantlib.414.s1.nabble.com/Observable-Python-objects-tp10448p10451.html

On 2003.11.10 17:23, Andre Louw wrote:
> I have been trying to use (abuse?) the observer swig interface to get
> my Python objects to be 'Observable', not so simple! In fact, no  
> luck!

Andre',
        I'd go for containment instead of inheritance, as the latter  
does not happily cross the Python/C boundaries. Defining a Python
class like:

import QuantLib

class MyObserver:
    def __init__(self):
        self.obs = QuantLib.Observer(self.update)
    def update(self):
        print "Override me!"
    def registerWith(self,o):
        self.obs.registerWith(o)

and inheriting from MyObserver should work, but beware---I didn't test  
it. As a matter of fact, I didn't even tried to run it through the  
Python interpreter...

Later,
        Luigi