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python执行子进程实现进程间通信的方法

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Release: 2016-06-06 11:18:19
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本文实例讲述了python执行子进程实现进程间通信的方法。分享给大家供大家参考。具体实现方法如下:

a.py:

import subprocess, time
subproc = subprocess.Popen(['c:\python31\python.exe', 'c:/b.py'], stdin=subprocess.PIPE, shell=True) 
time.sleep(0.5)
print('start')
subproc.stdin.write('data\n')
subproc.communicate('data\n')
print('end')

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b.py:

import sys
print('receive...')
s = sys.stdin.readline()
print('get:', len(s), s)

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希望本文所述对大家的Python程序设计有所帮助。

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