python subprocess pipe 实时输出日志的操作
*test11.py
importtime print"1" time.sleep(2) print"1" time.sleep(2) print"1" time.sleep(2) print"1"
*test.py
importsubprocess
p=subprocess.Popen("pythontest11.py",shell=True,stdout=subprocess.PIPE)
#None表示正在执行中
whilep.poll()isNone:
out=p.stdout.readline()
ifout!="":
printout
补充知识：python通过subprocess.Popen执行命令，重定向实时输出
执行命令
importsubprocess
importsys
#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('pingwww.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
importsubprocess
importsys
#常用编码
GBK='gbk'
UTF8='utf-8'
current_encoding=UTF8
popen=subprocess.Popen('pythonD:\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pythonsubprocesspipe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毛票票。