节点。js child_进程。spawn无法启动python进程

我编写了以下代码来生成python进程。我可以启动其他进程,但不能启动python。我尝试重新安装python和node,但仍然没有成功。我能够从命令行运行python。请帮忙。

const spawn = require("child_process").spawn;
var process = spawn('python',[ 'D:/python_script.py']);

var responseData = "";

process.stdout.setEncoding('utf-8');
process.stdout.on('data', function (data){
    responseData += data.toString();
});
process.stdout.on('end',function(data){
    console.log(JSON.stringify(responseData));
});

使用节点64位v8.2.1

if __name__ == '__main__':
    import sys
    print("Hello")
    f = open('D:/myfile.txt', 'w')
    f.write('hi there\n')  # python will convert \n to os.linesep
    f.close()
    sys.stdout.flush()

甚至只是 繁殖(“python”);