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Member "pysize-0.2/pysize/core/observable.py" (11 Mar 2007, 1283 Bytes) of package /linux/privat/old/pysize-0.2.tar.gz:
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1 # This program is free software; you can redistribute it and/or modify
2 # it under the terms of the GNU General Public License as published by
3 # the Free Software Foundation; either version 2 of the License, or
4 # (at your option) any later version.
6 # This program is distributed in the hope that it will be useful,
7 # but WITHOUT ANY WARRANTY; without even the implied warranty of
8 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
9 # GNU Library General Public License for more details.
11 # You should have received a copy of the GNU General Public License
12 # along with this program; if not, write to the Free Software
13 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
15 # See the COPYING file for license information.
17 # Copyright (c) 2006, 2007 Guillaume Chazarain <firstname.lastname@example.org>
19 class observable(object):
20 """The Observer/Observable pattern"""
22 def __init__(self):
23 self.callbacks = 
25 def add_observer(self, callback):
28 def del_observer(self, callback):
31 def fire_observers(self, *args, **kwargs):
32 # Copy in case the list is modified by an observer
33 for cb in self.callbacks[:]:
34 cb(*args, **kwargs)