On May 3, 10:34 pm, Peter Otten <[EMAIL PROTECTED]> wrote: > The problem is not that you are decorating a method but that you are trying > to use a callable class instance as a method. For that to work the class > has to implement the descriptor protocol, see > > http://users.rcn.com/python/download/Descriptor.htm > > class Bugger (object): > def __init__ (self, module, fn, instance=None): > self.module = module > self.fn = fn > self.instance = instance > > def __call__ (self, *args, **kws): > print "calling %s.%s()" % (self.module, self.fn.__name__) > if self.instance is not None: > args = (self.instance,) + args > ret_val = self.fn(*args, **kws) > return ret_val > > def __get__(self, instance, class_): > if instance is None: > return self > return Bugger(self.module, self.fn, instance) > > def instrument (module_name): > ret_val = lambda x: Bugger(module_name, x) > return ret_val > > class Stupid(object): > @instrument("xpd.spam") > def update(self): > print "update()" > > s = Stupid() > s.update() > Stupid.update(s)
I've been bitten by the "class instances as decorators won't get bound" bug many times. I had no idea there was a direct solution. Thanks! -- Adam Olsen, aka Rhamphoryncus -- http://mail.python.org/mailman/listinfo/python-list
