1. 下载 pybind11、安装 python38-devel

• https://github.com/pybind/pybind11
• https://github.com/pybind/pybind11.git

yum install -y python38-devel
yum install -y boost
pip3 install pytest -i https://pypi.douban.com/simple/ --trusted-host pypi.douban.com

2. 调用 python

c++ 代码（https://stackoverflow.com/questions/42521830/call-a-python-function-from-c-using-pybind11）

#include <pybind11/embed.h>
#include <iostream>

namespace py = pybind11;

int main() {
    py::scoped_interpreter python;

    auto math = py::module::import("math");
    double root_two = math.attr("sqrt")(2.0).cast<double>();

    std::cout << "The square root of 2 is: " << root_two << "\n";
}

编译

g++ -g  -o main main.cpp -Wall -I./ -I ../../pybind11/include/ -I /usr/include/python3.8/ -lpython3.8

运行结果

The square root of 2 is: 1.41421