python子进程和捕获bash的`history`命令的stdout

Question

我只是试图通过子进程从python中捕获history命令的输出......并且它不起作用：

import shlex, subprocess, time, os, sys
from subprocess import Popen, PIPE

command_line = "history"
args = shlex.split(command_line)
p = subprocess.Popen(args, stdout=PIPE, stderr=PIPE)