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Diffstat (limited to 'src/singleton.py')
| -rw-r--r-- | src/singleton.py | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/singleton.py b/src/singleton.py new file mode 100644 index 00000000..4390bc0e --- /dev/null +++ b/src/singleton.py @@ -0,0 +1,25 @@ +# -*- coding: utf-8 -*- + +# Copyright 2009, 2010 Erwan Briand +# Copyright 2010, Florent Le Coz <louizatakk@fedoraproject.org> + +# 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 version 3 of the License. +# +# 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, see <http://www.gnu.org/licenses/>. + +class Singleton(object): + """ Canonic Singleton implementation. + """ + _instance = None + def __new__(cls, *args, **kwargs): + if cls._instance is None: + cls._instance = super(Singleton, cls).__new__(cls, *args, **kwargs) + return cls._instance |