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pep8

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edited Jul 7, 2022 at 15:42

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Use a dictionary to hold instances of each subclass instead

class Singleton(object):
    _instances = { }

    def __new__(cls, *args, **kwargs):
        if cls._instances.get( cls, None ) is None:
            cls._instances[ cls ]_instances[cls] = super(Singleton, cls).__new__(cls, *args, **kwargs)

        return Singleton._instances[ cls ]_instances[cls]

Use a dictionary to hold instances of each subclass instead

class Singleton(object):
    _instances = { }

    def __new__(cls, *args, **kwargs):
        if cls._instances.get( cls, None ) is None:
            cls._instances[ cls ] = super(Singleton, cls).__new__(cls, *args, **kwargs)

        return Singleton._instances[ cls ]

Use a dictionary to hold instances of each subclass instead

class Singleton(object):
    _instances = {}

    def __new__(cls, *args, **kwargs):
        if cls._instances.get(cls, None) is None:
            cls._instances[cls] = super(Singleton, cls).__new__(cls, *args, **kwargs)

        return Singleton._instances[cls]

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answered Sep 24, 2014 at 19:26

fallenland

Use a dictionary to hold instances of each subclass instead

class Singleton(object):
    _instances = { }

    def __new__(cls, *args, **kwargs):
        if cls._instances.get( cls, None ) is None:
            cls._instances[ cls ] = super(Singleton, cls).__new__(cls, *args, **kwargs)

        return Singleton._instances[ cls ]

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