python subprocess pipe 實時輸出日志的操作

* test11.py

import timeprint '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表示正在執行中

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

補充知識：python 通過 subprocess.Popen執行命令，重定向實時輸出

執行命令

import subprocessimport sys# 常用編碼GBK = ’gbk’UTF8 = ’utf-8’# 解碼方式，一般 py 文件執行為utf-8 ，cmd 命令為 gbkcurrent_encoding = GBKpopen = 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))

執行 .py文件

import subprocessimport sys# 常用編碼GBK = ’gbk’UTF8 = ’utf-8’current_encoding = UTF8 popen = subprocess.Popen(’python D:codetest.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))

以上這篇python subprocess pipe 實時輸出日志的操作就是小編分享給大家的全部內容了，希望能給大家一個參考，也希望大家多多支持好吧啦網。