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Boost.python overloaded constructor for numpy array and python list
using boost;
using boost::python;

shared_ptr<MyClass> CreateWithList(list lst)
{
    // construct with a list here
}

shared_ptr<MyClass> CreateWithPyArrayObject(PyArrayObject* obj)
{
    // construct with numpy array here
}


BOOST_PYTHON_MODULE(mymodule)
{
    class_<MyClass, boost::noncopyable, boost::shared_ptr<MyClass> >
        ("MyClass", no_init)
        .def("__init__", make_constructor(&CreateWithList))
        .def("__init__", make_constructor(&CreateWithPyArrayObject))
}