python c++ api PyRun_SimpleFile未提供所需的输出

#include <Python.h>

int main() {
    Py_Initialize();
    PyRun_SimpleString("print('Hello, World!')");
    Py_Finalize();
    return 0;
}

#include <Python.h>
#include <iostream>
#include <fstream>

int main() {
    Py_Initialize();
    
    // 重定向标准输出到文件
    std::ofstream output("output.txt");
    std::streambuf* previous = std::cout.rdbuf(output.rdbuf());
    
    // 执行脚本
    FILE* file = fopen("script.py", "r");
    PyRun_SimpleFile(file, "script.py");
    fclose(file);
    
    // 恢复标准输出
    std::cout.rdbuf(previous);
    
    Py_Finalize();
    return 0;
}

#include <Python.h>
#include <iostream>

int main() {
    Py_Initialize();
    
    // 创建一个自定义的输出流
    PyObject* module = PyImport_ImportModule("sys");
    PyObject* sys_dict = PyModule_GetDict(module);
    PyObject* io_module = PyImport_ImportModule("io");
    PyObject* io_dict = PyModule_GetDict(io_module);
    PyObject* output = PyObject_CallMethod(io_dict, "StringIO", NULL);
    
    // 将自定义的输出流设置为sys.stdout
    PyDict_SetItemString(sys_dict, "stdout", output);
    
    // 执行脚本
    FILE* file = fopen("script.py", "r");
    PyRun_SimpleFile(file, "script.py");
    fclose(file);
    
    // 从自定义的输出流中获取脚本的输出
    PyObject* output_value = PyObject_CallMethod(output, "getvalue", NULL);
    const char* output_str = PyUnicode_AsUTF8(output_value);
    std::cout << output_str << std::endl;
    
    Py_Finalize();
    return 0;
}