如何使用Python subprocess模块实现管道实时监控并输出日志？

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pythontest.pyimport subprocess

p=subprocess.Popen(python test11.py, shell=True, stdout=subprocess.PIPE)

* test11.py

import time print "1" time.sleep(2) print "1" time.sleep(2) print "1" time.sleep(2) print "1"

* test.py

import subprocess

p = subprocess.Popen("python test11.py", shell=True, stdout=subprocess.PIPE)

# None表示正在执行中

while p.poll() is None: <br>　　out = p.stdout.readline() <br>　　if out != "": <br>　　　　print out

补充知识：python 通过 subprocess.Popen执行命令，重定向实时输出

执行命令

import subprocess import sys # 常用编码 GBK = 'gbk' UTF8 = 'utf-8' # 解码方式，一般 py 文件执行为utf-8 ，cmd 命令为 gbk current_encoding = GBK popen = subprocess.Popen('ping www.baidu.com', shell = True, stdout = subprocess.PIPE, stderr = subprocess.PIPE, bufsize = 1) out,err = popen.communicate() print('std_out: ' + out) print('std_err: ' + err) print('returncode: ' + str(popen.returncode))

执行 .py文件

import subprocess import sys # 常用编码 GBK = 'gbk' UTF8 = 'utf-8' current_encoding = UTF8 popen = subprocess.Popen('python D:\code\test.py', stdout = subprocess.PIPE, stderr = subprocess.PIPE, bufsize = 1) out,err = popen.communicate() print('std_out: ' + out) print('std_err: ' + err) print('returncode: ' + str(popen.returncode))

以上这篇python subprocess pipe 实时输出日志的操作就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持易盾网络。