Passing messages between classes

[bartonc]

I'm working on a scheme which reduces the interface between classed to a single method and a list messages that the co-operative class knows. I invite all comments and/or critiques/improvements: We could even turn this into an article!

class AnyClass(object):
    """Demonstrate massage passing:
        This is the subordinate class."""
    def Funct1(self, arg1):
        print "AnyClass.Funct1 got", arg1
        self.Send("MESSAGE3", arg1, string1='hello', string2='world')
 
    def Funct2(self, arg2, arg3):
        print arg2, arg3
 
    def Funct3(self, count, **kwargs):
        """Must document the names of the kwargs here:
           Funct3(count, string1, string2)"""
        print count, kwargs['string1'], kwargs['string2']
 
 
    # Of cource, the sender and the reciver would typically have different massages
    DispatchDict = {'MESSAGE1':Funct1, 'MESSAGE2':Funct2, 'MESSAGE3':Funct3}
 
    def Receive(self, *args, **kwargs):
        self.DispatchDict[args[0]](self, *args[1:], **kwargs)
 
    def Connect(self, callback):
        self.Send = callback
        return self.Receive
 
 
class AnyOtherClass(object):
    """Demonstrate massage passing:
        This is the superior class."""
    def __init__(self):
        self.Worker = AnyClass()
        self.Send = self.Worker.Connect(self.Receive)
        self.Send('MESSAGE1', 5)
 
    def Funct1(self, arg1):
        print arg1
 
    def Funct2(self, arg2, arg3):
        print arg2, arg3
 
    def Funct3(self, count, **kwargs):
        """Must document the names of the kwargs here:
           Funct3(count, string1, string2)"""
        print count, kwargs['string1'], kwargs['string2']
 
 
    # Of cource, the sender and the reciver would typically have different massages
    DispatchDict = {'MESSAGE1':Funct1, 'MESSAGE2':Funct2, 'MESSAGE3':Funct3}
 
    def Receive(self, *args, **kwargs):
        self.DispatchDict[args[0]](self, *args[1:], **kwargs)
 
test = AnyOtherClass()