我已经在python中看到了很多使用管道的方法,但是它们太复杂了,无法理解。我想要写的是这样的东西:
import os
for cmdoutput_line in os.system('find /'):
print cmdoutput_line
在没有等待+ big-buffering命令输出的情况下实现它的最简单方法是什么?我不想在命令完成时等待,我只是想实时迭代输出。
答案 0 :(得分:2)
在 while 语句中,您可以逐行阅读子流程,
from subprocess import Popen, PIPE, STDOUT
process = Popen('find /', stdout = PIPE, stderr = STDOUT, shell = True)
while True:
line = process.stdout.readline()
if not line: break
print line
答案 1 :(得分:0)
from subprocess import Popen, PIPE
def os_system(command):
process = Popen(command, stdout=PIPE, shell=True)
while True:
line = process.stdout.readline()
if not line:
break
yield line
if __name__ == "__main__":
for path in os_system("find /tmp"):
print path
答案 2 :(得分:-1)
试试这个:
import subprocess
sp = subprocess.Popen('find /', shell=True, stdout=subprocess.PIPE)
results = sp.communicate()
print results