python subprocess pipe 实时输出日志的操作
作者：ADChen
这篇文章主要介绍了python subprocess pipe 实时输出日志的操作，具有很好的参考价值，希望对大家有所帮助。一起跟随小编过来看看吧
* 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脚本之家。