Kill a running subprocess call

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Well, there are a couple of methods on the object returned by subprocess.Popen() which may be of use: Popen.terminate() and Popen.kill(), which send a SIGTERM and SIGKILL respectively.

For example…

import subprocess
import time

process = subprocess.Popen(cmd, shell=True)
time.sleep(5)
process.terminate()

…would terminate the process after five seconds.

Or you can use os.kill() to send other signals, like SIGINT to simulate CTRL-C, with…

import subprocess
import time
import os
import signal

process = subprocess.Popen(cmd, shell=True)
time.sleep(5)
os.kill(process.pid, signal.SIGINT)

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