from twisted.python import log class StateEventMachineType(type): def makeHandleGetter(klass, name): def helpful(self): # log.msg("looking up %s in state %s" % (name, self.state)) return getattr(self, "handle_%s_%s" % (self.state, name)) return helpful makeHandleGetter = classmethod(makeHandleGetter) # def __new__(klass, name, bases, attrs): # for e in name.events: # attrs[e] = property(klass.makeHandleGetter(e)) # return type.__new__(klass, name, bases, attrs) def __init__(klass, name, bases, attrs): type.__init__(klass, name, bases, attrs) # print "making a class", klass, "with events", klass.events for e in klass.events: setattr(klass, e, property(klass.makeHandleGetter(e)))