does python support mvc architecture

[Thomas Heller]

"John Roth" <newsgroups at jhrothjr.com> writes:

> <ketulp_baroda at yahoo.com> wrote in message
> news:f046efac.0402120627.948b7ed at posting.google.com...
>> Hi
>> Does python support MVC architecture? Java has register & notify
>> obsever methods in javax.util . Does python has these functions. If
>> not then how to register the views with the models & how to notify the
>> views that the model has been updated??
>
> I don't know of a notifier class in the standard library,
> but it's not all that difficult to write one. This is the
> one I am currently using:
>
> -----------------------------------------------------
> # module Notify
>
> class Notify(object):
>     def __init__(self):
>         self.listenerList = []
>
>     def sendMessage(self, event):
>         for callback in self.listenerList:
>             callback(event)
>         return
>
>     def addListener(self, callback):
>         self.listenerList.append(callback)
>
>     def removeListener(self, callback):
>         self.listenerList.remove(callback)
> -----------------------------------------------------
>
> callback has to be a callable of some kind,
> a bound method is perfectly acceptable and
> that's what I use. Works great.

I can heartily recommend the dispatcher module from Patrick O'Brian.
I'm still using a hacked up version from ActiveState's Python cookbook,
but there's also a newer version on sourceforge.

Thomas