在Python 2.5中执行shell进程

Question

I need to run tcpdump , kill it after a bit and read from stderr. The following code works in Python 2.7 , but I need to make it work in Python 2.5 too::

tcpdumpProcess = subprocess.Popen(['sudo', '/usr/sbin/tcpdump',
                        '-w', 'dumpedTraffic.pcap',
                        '-n', 'ip'],
                        stdout=subprocess.PIPE,
                        stderr=subprocess.PIPE)
tcpdumpProcess.terminate()    
tcpdumpProcess.wait()
tcpdump_stderr =  tcpdumpProcess.communicate()[1]

Python 2.5 complains that:

tcpdumpProcess.terminate() AttributeError: 'Popen' object has no attribute ' terminate '

What's en equivalent way of doing it in Python 2.5?

Answer 1

您可以使用os.kill方法终止进程。

os.kill(tcpdumpProcess.pid, signal.SIGTERM)

Answer 2

You can execute the Kill command along with processid as same as u execute the previous command.

or

u can use the kill methods provided in the os module along with the process id and the signal status such as TERM etc.