linux下python启动第三方程序，并控制关闭

import subprocess
import os
import signal
p = subprocess.Popen("recordmydesktop -o /home/test/test2.ogv",stdin = subprocess.PIPE,stdout = subprocess.PIPE,stderr = subprocess.PIPE,shell = True")
'''
参考：https://www.oschina.net/question/234345_52660import subprocess
import os
import signal
p