Python 来自最高命令的Cpu

您好，我想连续获取CPU信息，但我只能获取一个与此代码我如何才能修复它

import subprocess
import time 
while 1:
       top = subprocess.Popen(['top','-b','n1'],stdout = subprocess.PIPE)
       grep = subprocess.Popen(['grep','-i','Cpu(s)'] stdin = top.stdout, stdout = subprocess.PIPE , stderr = subprocess.STDOUT)
       cut = subprocess.Popen(['cut','-c','-13'] , stdin = grep.stdout , stdout = subprocess.PIPE)
       print output
       time.sleep(3)

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请参阅，例如，您可以使用

psutil

module as来获取cpu信息。但是如果您想获得

top

命令的具体输出；看到和