* test11.py
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import time
print "1"
time.sleep(2)
print "1"
time.sleep(2)
print "1"
time.sleep(2)
print "1"
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* 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
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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))
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执行 .py文件
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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))
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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服务器之家。
原文链接：https://www.cnblogs.com/chenadong/p/10150269.html