Function free_leftv

Singular/dyn_modules/python/interpreter_support.cc:24–28

using namespace boost::python;
using boost::python::extract;
static void free_leftv(leftv args)
{
    args->CleanUp();
    omFreeBin(args, sleftv_bin);
}

#if BOOST_VERSION < 106500    /* 1.65 */
typedef typename boost::python::numeric::array NumpyArrayType;