Python 子进程 Popen 与 Pyinstaller

问题描述

我使用 ffmpeg 来转换一些视频.我用 subprocess.Popen(...) 调用命令

I use ffmpeg for converting some videos. I am calling command with subprocess.Popen(...)

si = subprocess.STARTUPINFO()
si.dwFlags |= subprocess.STARTF_USESHOWWINDOW

self.my_pro = subprocess.Popen(cmd,
stdin=subprocess.PIPE,
stderr=subprocess.PIPE,
startupinfo=si)

(output, error) = self.my_pro.communicate()

我用这个方法杀人

self.my_pro.kill()

不用编译成exe也没关系.

It's okey without compile to exe.

但我使用 pyinstaller 编译，而 --noconsole 子进程不起作用.我必须将 subprocess.Popen(...) 更改为 subprocess.check_output(...)

But i compiled with pyinstaller with --noconsole subprocess not working. I must change subprocess.Popen(...) to subprocess.check_output(...)

但是这次我不能用 self.my_pro.kill() 杀死进程，这不起作用.

But this time i can't kill process with self.my_pro.kill() this not working.

如何使用 i can kill 运行进程并运行 pyinstaller noconsole?

How i can run process with i can kill and it will run pyinstaller noconsole?

推荐答案

正如@jfs 所写，使用 Popen 您必须重定向所有内容.你忘记了 stdout

As @jfs wrote, with Popen you have to redirect everything. You forgot stdout

所以这段代码对我来说不再崩溃了:

So this code doesn't crash for me anymore:

si = subprocess.STARTUPINFO()
si.dwFlags |= subprocess.STARTF_USESHOWWINDOW

self.my_pro = subprocess.Popen(cmd,
stdin=subprocess.PIPE,
stderr=subprocess.PIPE,
stdout=subprocess.PIPE,
startupinfo=si)

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