package main

import (
    "os/exec"
    "syscall"
    "github.com/astaxie/beego"
    "encoding/json"
)

func main() {
    a := [][]float64{
        {1,2},
        {3,4},
    }
    json_a,_:=json.Marshal(a)
    string_a:=string(json_a)
    cmd := exec.Command("python", "test.py",string_a)
    cmd.SysProcAttr = &syscall.SysProcAttr{HideWindow: true}
    var ret [][]float64
    out, _ := cmd.Output()
    err := json.Unmarshal(out, &ret)
    beego.Debug(err)
    beego.Debug(ret)
}

import json

def setParam(argv):
    param={}
    param["a"] = json.loads(argv[1])
    return param

if __name__ == '__main__':
    param = setParam(sys.argv)
    a = param["a"]
    print(a)