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python Programming Glossary: cls._instance

does __init__ get called multiple times with this implementation of Singleton? (Python)

http://stackoverflow.com/questions/18383970/does-init-get-called-multiple-times-with-this-implementation-of-singleton

print 'Singleton.__new__ called with class' cls if not cls._instance cls._instance super Singleton cls .__new__ cls args kwargs return.. called with class' cls if not cls._instance cls._instance super Singleton cls .__new__ cls args kwargs return cls._instance.. super Singleton cls .__new__ cls args kwargs return cls._instance class Cache Singleton def __init__ self size 100 print 'I am..

Python and the Singleton Pattern [duplicate]

http://stackoverflow.com/questions/42558/python-and-the-singleton-pattern

object _instance None def __new__ cls args kwargs if not cls._instance cls._instance super Singleton cls .__new__ cls args kwargs.. None def __new__ cls args kwargs if not cls._instance cls._instance super Singleton cls .__new__ cls args kwargs return cls._instance.. super Singleton cls .__new__ cls args kwargs return cls._instance if __name__ '__main__' s1 Singleton s2 Singleton if id s1 id..

How to adapt the Singleton pattern? (Deprecation warning)

http://stackoverflow.com/questions/6264025/how-to-adapt-the-singleton-pattern-deprecation-warning

the borg _instance None def __new__ cls args kwargs if not cls._instance cls._instance super Singleton cls .__new__ cls args kwargs.. None def __new__ cls args kwargs if not cls._instance cls._instance super Singleton cls .__new__ cls args kwargs return cls._instance.. super Singleton cls .__new__ cls args kwargs return cls._instance The same approach is also described in question Is there a simple..