从Go运行Python程序

Question

I have written some code in Python that uses some libraries that are not in Go. I have a web server that I have written in Go and I would like to be able to call a Python program from my Go program and then use the output of the Python program as input in my Go program. Is there anyway to do this?

Answer 1

It's actually relatively easy. All you need to do is use the os/exec library. Here is an example below.

Go Code:

package main

import (
   "fmt"
   "os/exec"
)

func main() {
    cmd := exec.Command("python",  "python.py", "foo", "bar")
    fmt.Println(cmd.Args)
    out, err := cmd.CombinedOutput()
    if err != nil { fmt.Println(err); }
    fmt.Println(string(out))
}

Python Code:

import sys

for i in range(len(sys.argv)):
   print str(i) + ": " + sys.argv[i]

Output From Go Code:

[python python.py foo bar]
0: python.py
1: foo
2: bar