python subprocess pipe 实时输出日志的操作
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2022-03-06 14:04:45
* test11.pyimport timeprint "1"time.sleep(2)print "1"time.sleep(2)print "1"time.sleep(2)print "1"* t...
* 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))
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