Node.js child_process.spawn无法启动python进程 [英] Node.js child_process.spawn is unable to launch python process
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问题描述
我编写了以下代码以生成python进程.我能够启动其他进程,但不能启动python.我尝试重新安装python和node,但仍然没有运气.我能够从命令行运行python.请帮忙.
I have written following code to spawn a python process. I am able to launch other processes but not python. I tried reinstalling python and node but still no luck. I am able to run python from command line. Please help.
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
Using node 64 bit v8.2.1
我正在使用的Python脚本:
Python script which I am using:
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()
即使只是 spawn('python'); 也不启动python窗口
Even just spawn('python'); is not launching python window
我也尝试过给出python.exe的绝对路径.
I have also tried giving absolute path of python.exe.
推荐答案
更改
console.log(JSON.stringify(responseData));
到
console.log(responseData);
并添加
process.stderr.on('data', function (data){
responseData += data.toString();
});
下方
process.stdout.on('data', function (data){
responseData += data.toString();
});
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