运行外部python脚本并检查退出状态

Question

I run a python script that create a PNG file using the exec package:

cmd := exec.Command("python", "script.py")
cmd.Run()

How could I safely check the command exit state and that the PNG file was successfully created ?

Answer 1

Simply checking the return from cmd.Run() will do, if the program returned any error or didn't exit with status 0, it will return that error.

if err := cmd.Run(); err != nil {
    panic(err)
}