python execute dos command to get the return value

Sometimes you need to save execute dos command return value

Libraries need to import subprocess

import subprocess

p = subprocess.Popen('ping www.baidu.com', shell=True, stdout=subprocess.PIPE)
out, err = p.communicate()
print out.splitlines()[24:27]
for line in out.splitlines():
    print line

splitlines is a list

Operation can be sliced