9

我知道我可以像这样获得流程的stdin使用子流程python

import subprocess
f = subprocess.Popen('python example.py',stdin=subprocess.PIPE)
f.stdin.write('some thing')

但我只想知道我想写入进程的pid,我该stdin 怎么做?

4

1 回答 1

11

只需写信至/proc/PID/fd/1

import os.path
pid = os.getpid() # Replace your PID here - writing to your own process is boring
with open(os.path.join('/proc', str(pid), 'fd', '1'), 'a') as stdin:
  stdin.write('Hello there\n')
于 2012-09-07T07:49:05.230 回答