如何在交互模式下用matplotlib嵌入Python代码到C中？

#include <Python.h>

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

    // 导入matplotlib库
    PyObject *pModule = PyImport_ImportModule("matplotlib.pyplot");
    if (!pModule) {
        PyErr_Print();
        fprintf(stderr, "Failed to load matplotlib.pyplot\n");
        Py_Finalize();
        return 1;
    }

    // 获取plot函数
    PyObject *pFunc = PyObject_GetAttrString(pModule, "plot");
    if (!pFunc || !PyCallable_Check(pFunc)) {
        if (PyErr_Occurred()) PyErr_Print();
        fprintf(stderr, "Cannot find function 'plot'\n");
        Py_XDECREF(pFunc);
        Py_DECREF(pModule);
        Py_Finalize();
        return 1;
    }

    // 准备参数
    PyObject *pArgs = PyTuple_Pack(2, PyList_New(5), PyList_New(5));
    PyObject *x = PyTuple_GetItem(pArgs, 0);
    PyObject *y = PyTuple_GetItem(pArgs, 1);
    PyList_SetItem(x, 0, PyFloat_FromDouble(1.0));
    PyList_SetItem(x, 1, PyFloat_FromDouble(2.0));
    PyList_SetItem(x, 2, PyFloat_FromDouble(3.0));
    PyList_SetItem(x, 3, PyFloat_FromDouble(4.0));
    PyList_SetItem(x, 4, PyFloat_FromDouble(5.0));
    PyList_SetItem(y, 0, PyFloat_FromDouble(1.0));
    PyList_SetItem(y, 1, PyFloat_FromDouble(4.0));
    PyList_SetItem(y, 2, PyFloat_FromDouble(9.0));
    PyList_SetItem(y, 3, PyFloat_FromDouble(16.0));
    PyList_SetItem(y, 4, PyFloat_FromDouble(25.0));

    // 调用plot函数
    PyObject *pValue = PyObject_CallObject(pFunc, pArgs);
    Py_DECREF(pArgs);

    if (pValue != NULL) {
        printf("Plot successful\n");
        Py_DECREF(pValue);
    } else {
        PyErr_Print();
        fprintf(stderr, "Call failed\n");
    }

    // 显示图形
    PyObject *showFunc = PyObject_GetAttrString(pModule, "show");
    PyObject_CallObject(showFunc, NULL);
    Py_DECREF(showFunc);

    // 清理
    Py_XDECREF(pFunc);
    Py_DECREF(pModule);

    // 关闭Python解释器
    Py_Finalize();

    return 0;
}

gcc main.c -o main -I/usr/include/python3.8 -lpython3.8
./main