如何在main函数中使用boost::python::dict或tuple？

#include <boost/python.hpp>

int main()
{
    Py_Initialize();
    boost::python::object main_module = boost::python::import("__main__");
    boost::python::object main_namespace = main_module.attr("__dict__");

    boost::python::dict my_dict;
    my_dict["key1"] = "value1";
    my_dict["key2"] = 2;

    boost::python::tuple my_tuple;
    my_tuple += "element1";
    my_tuple += 2;

    boost::python::exec("def process_data(data):\n"
                        "    # 处理数据的Python函数\n"
                        "    print(data)\n"
                        "process_data(my_dict)\n"
                        "process_data(my_tuple)\n",
                        main_namespace);

    Py_Finalize();
    return 0;
}