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Direktori : /lib/python3.6/site-packages/tuned/ |
Current File : //lib/python3.6/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