go gin框架调用cmd运行python脚本问题

报错1：exec: "python3 test.py": executable file not found in $PATH

在单个go程序中直接执行以下脚本没有问题

func TestCmdPython(t *testing.T) {
    //test.txt的内容为图片的base64字符串
    //filePath := "test.txt"
    //newFileName := "test.jpg"
    //CmdPythonSaveImageDpi(filePath,newFileName)
    cmd := exec.Command("python3 test.py")
    //cmd.Dir, _ = os.Getwd()
    fmt.Println("cmd.Path:",cmd.Path)
    fmt.Println("cmd.Dir:",cmd.Dir)
    //out,err := cmd.Output()
}

但是在gin中开启子线程去执行脚本，就会有报错1的出现

go diffPython()

func diffPython(result1, result2 string,scope string) bool {
    //args := []string{}
    fmt.Println(os.Getwd())
    cmd := exec.Command("python3 ./script/test.py")
    fmt.Println("cmd.Path:",cmd.Path)
    fmt.Println("cmd.Dir:",cmd.Dir)
    out,err := cmd.Output()
    if err != nil {
        fmt.Println("diffPython:",err)
    }
    result := string(out)
    fmt.Println(result)
    //if strings.Index(result, "success") != 0 {
    //    err = errors.New(fmt.Sprintf("main.py error：%s", result))
    //}
    res, _ := strconv.ParseBool(result)
    return res
}

1.gin运行后当前目录为项目的目录，而不是go文件所在的目录

2.gin中的exec.Commond会将python3 test.py识别为一整个命令，而不是python3 +参数

 

解决方案，将python和运行文件分开

//执行python脚本
func diffPython(result1, result2 string,scope string) bool {
    //args := []string{}
    fmt.Println(os.Getwd())
    cmd := exec.Command("python3","./script/test.py")
    fmt.Println("cmd.Path:",cmd.Path)
    fmt.Println("cmd.Dir:",cmd.Dir)
    out,err := cmd.Output()
    if err != nil {
        fmt.Println("diffPython:",err)
    }
    result := string(out)
    fmt.Println(result)
    //if strings.Index(result, "success") != 0 {
    //    err = errors.New(fmt.Sprintf("main.py error：%s", result))
    //}
    res, _ := strconv.ParseBool(result)
    return res
}

其中还会有一个报错  exit status 1，是因为我的脚本为python3的不能用python -dir执行