diff options
Diffstat (limited to 'interface.py')
-rw-r--r-- | interface.py | 33 |
1 files changed, 11 insertions, 22 deletions
diff --git a/interface.py b/interface.py index 3589212..e75ec49 100644 --- a/interface.py +++ b/interface.py @@ -1,20 +1,4 @@ -# Copyright (c) 2002-2007 LOGILAB S.A. (Paris, FRANCE). -# http://www.logilab.fr/ -- mailto:contact@logilab.fr -# -# This program is free software; you can redistribute it and/or modify it under -# the terms of the GNU General Public License as published by the Free Software -# Foundation; either version 2 of the License, or (at your option) any later -# version. -# -# This program is distributed in the hope that it will be useful, but WITHOUT -# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS -# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License along with -# this program; if not, write to the Free Software Foundation, Inc., -# 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -""" - bases class for interfaces to provide "light" interface handling. +"""Bases class for interfaces to provide 'light' interface handling. TODO: _ implements a check method which check that an object implements the @@ -22,20 +6,25 @@ _ Attribute objects This module requires at least python 2.2 + +:copyright: 2000-2008 LOGILAB S.A. (Paris, FRANCE), all rights reserved. +:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr +:license: General Public License version 2 - http://www.gnu.org/licenses """ +__docformat__ = "restructuredtext en" from types import ListType, TupleType class Interface: - """base class for interfaces""" + """Base class for interfaces.""" def is_implemented_by(cls, instance): return implements(instance, cls) is_implemented_by = classmethod(is_implemented_by) def implements(obj, interface): - """return true if the give object (maybe an instance or class) implements - the interface + """Return true if the give object (maybe an instance or class) implements + the interface. """ kimplements = getattr(obj, '__implements__', ()) if not isinstance(kimplements, (list, tuple)): @@ -47,9 +36,9 @@ def implements(obj, interface): def extend(klass, interface, _recurs=False): - """add interface to klass'__implements__ if not already implemented in. + """Add interface to klass'__implements__ if not already implemented in. - if klass is subclassed, ensure subclasses __implements__ it as well. + If klass is subclassed, ensure subclasses __implements__ it as well. NOTE: klass should be e new class. """ |