A simple example to call python function from golang.

main.go

package main

import (
	"github.com/qiniu/py"
	"log"
	//"path/filepath"
	"strconv"
)

func callPythonFunction(file string, function string) (int, string) {

	Module, err := py.Import(file)
	if err != nil {
		log.Print("py.Importg")
		return 0, ""
	}

	Dict := Module.Dict()
	if Dict == nil {
		log.Print("Module.Dict")
		return 0, ""
	}

	Func := Dict.GetItemString(function)
	if Func == nil {
		log.Print("Dict.GetItemString")
		return 0, ""
	}

	Ret, err := Func.CallObject(nil)
	if err != nil {
		log.Print("Dict.CallObject")
		return 0, ""
	}

	Tuple, ok := py.AsTuple(Ret)
	if !ok {
		log.Print("py.AsTuple")
		return 0, ""
	}

	size := Tuple.Size()
	if size == 2 {
		value, err := Tuple.GetItem(0)
		if err != nil {
			log.Print("Tuple.GetItem")
			return 0, ""
		}

		ok, _ := strconv.Atoi(value.String())

		value, _ = Tuple.GetItem(1)
		if err != nil {
			log.Print("Tuple.GetItem")
			return 0, ""
		}

		return ok, value.String()
	} else {
		log.Printf("Abnormal return values, number=%d", size)
	}

	return 0, ""
}