I think reference_existing_object will work. And in my opinion, you'd better be careful if you expect that the c++ code and python code are using the same singleton instance. Because there're two Singleton::_instance if you export the Singleton class to Python. one at c++ side, the other at python side. 2009/2/13 Balasubramanyam, Shivakumar <sbalasub@qualcomm.com>

HI,

The am not sure if which call policy I should be using for this particular use case,

class Singleton { public: Singleton* create() { if(!_instance) { _instance = new Singleton(); } return _instance; } static Singleton* _instance; }

// Initialization Singleton* _instance=NULL;

Is return_value_policy<reference_existing_object> the right call policy to use?

Thanks, Shiva

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