我可以从 C plus plus 运行 python 脚本吗？

Question

I made a basic C++ script that looks like this.

#include <iostream>

int main()
{
    std::cout << "Hello World!" << std:endl;
}

I complied this and named that complied file pcpp .

Next, I made a python script named runcpp . This looks like this.

import os
com = 'sudo stdbuf -oL ./pcpp'
os.system(com)

Then, when I run this python script, I see the "Hello World." message, However. now I want to do something totally opposite.

Let's assume I have a file name ppy.py . This has script like this.

print("Hello World!")

Now, I want to print this by running C++ compiler. How should I do this?

Answer 1

If you just intend to run a Python script from C/C++ you could simply use system() to execute the Python script like system("./myscript.py") , which will use the interpreter specified in the shebang. This means say you have the script:

#!/usr/bin/python3

print("Hello!");

It will run the script using /usr/bin/python3 as that is specified in the shebang. Using system("python3 myscript.py") will use python3 in your shell's PATH .

Alternatively, if you want to execute Python code within your C++ program you can embed the Python interpreter into your program, see https://docs.python.org/3/extending/embedding.html .