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| Direktori : /lib/python2.7/site-packages/tuned/ |
| Current File : //lib/python2.7/site-packages/tuned/patterns.py |
class Singleton(object):
"""
Singleton design pattern.
"""
_instance = None
def __init__(self):
if self.__class__ is Singleton:
raise TypeError("Cannot instantiate directly.")
@classmethod
def get_instance(cls):
"""Get the class instance."""
if cls._instance is None:
cls._instance = cls()
return cls._instance