How to convert a vector to numpy array with templates and boost?
<p>So I found <a href="https://stackoverflow.com/questions/10701514/how-to-return-numpy-array-from-boostpython">how to return numpy.array from boost::python?</a>. However, like this I have to write this function for int, float, double separately. Is it possible to avoid this using templates? I would somehow need to convert with T to an entry to the enumeration of NPY data types. Or are there other options?</p>

<pre><code>template&lt;typename T&gt;
boost::python::object getNumpyArray(std::vector&lt;T&gt;&amp; vector)
{
    npy_intp shape[1] = { vector.size() };
    //Here I would need to replace NPY_DOUBLE with some conversion of T
    PyObject* obj = PyArray_SimpleNewFromData(1, shape, NPY_DOUBLE, vector.data());
    boost::python::handle&lt;&gt; handle(obj);
    boost::python::numeric::array arr(handle);

    return arr.copy();
}
</code></pre>