如果给定初始化的类为PyObject，则从C++调用Python类方法

#include <Python.h>

int main(int argc, char *argv[]) {
    // 初始化 Python 解释器
    Py_Initialize();

    // 导入 Python 模块
    PyObject* pModule = PyImport_ImportModule("example_module");
    if (!pModule) {
        PyErr_Print();
        fprintf(stderr, "Failed to load module\n");
        return 1;
    }

    // 获取类对象
    PyObject* pClass = PyObject_GetAttrString(pModule, "ExampleClass");
    if (!pClass || !PyCallable_Check(pClass)) {
        if (PyErr_Occurred()) PyErr_Print();
        fprintf(stderr, "Cannot find function 'ExampleClass'\n");
        return 1;
    }

    // 创建类的实例
    PyObject* pInstance = PyObject_CallObject(pClass, nullptr);
    if (!pInstance) {
        PyErr_Print();
        fprintf(stderr, "Failed to create instance\n");
        return 1;
    }

    // 调用类的方法
    PyObject* pResult = PyObject_CallMethod(pInstance, "example_method", nullptr);
    if (pResult != nullptr) {
        printf("Result of call: %ld\n", PyLong_AsLong(pResult));
        Py_DECREF(pResult);
    } else {
        PyErr_Print();
        fprintf(stderr, "Call failed\n");
        return 1;
    }

    // 清理
    Py_DECREF(pModule);
    Py_DECREF(pClass);
    Py_DECREF(pInstance);
    Py_Finalize();

    return 0;
}