does python support mvc architecture

[ketulp_baroda]

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??

 

[John Roth]

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.

John Roth

 

[Thomas Heller]

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

 

[DH]

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??

The one that is closest to Java's implementation is here:
http://jamesthornton.com/eckel/TIPython/code/util/
but see also:
http://sra.itc.it/people/cavada/mvc/index.html
http://sourceforge.net/projects/pydispatcher/

And various python frameworks have Observable support built-in, such as
Twisted, anygui, WCK, etc.

 

[Yermat]

DH a écrit :

The one that is closest to Java's implementation is here:
http://jamesthornton.com/eckel/TIPython/code/util/
but see also:
http://sra.itc.it/people/cavada/mvc/index.html
http://sourceforge.net/projects/pydispatcher/

And various python frameworks have Observable support built-in, such as
Twisted, anygui, WCK, etc.

http://www.python.org/cgi-bin/moinmoin/DelegationEventModel