Fastest Way to Quit Subprocess in Python

Asked Jun 17 '16 at 01:04

Active Jun 19 '16 at 00:17

Viewed 59 times

When starting a subprocess using Popen and later trying to end it using terminate, it can take over 10 seconds before the subprocess disappears from Windows Task Manager.

p = subprocess.Popen('foo.exe')
while True:
    ...    
    if quitProcess:
        p.terminate()

Question: Is there a quicker way to quit the subprocess, ideally within a second?

edited Jun 19 '16 at 00:17

jfs

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asked Jun 17 '16 at 01:04

Nyxynyx

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http://stackoverflow.com/questions/2940858/kill-process-by-name-in-python – Stefan Falk Jun 17 '16 at 01:07
3

What makes you think that it is the killing that is slow instead of the Task Manager? – zondo Jun 17 '16 at 01:11
@displayname: do you mean that `taskkill /f` (`/f` means "forcefully terminated") should end the process sooner than `TerminateProcess()` used by `p.terminate()`? – jfs Jun 19 '16 at 00:19
From MSDN, : "The terminated process cannot exit until all pending I/O has been completed or canceled." Could that be the problem? – Harvey Jun 19 '16 at 03:46
Processes naturally take a while to kill – TheInitializer Jun 19 '16 at 20:14

Fastest Way to Quit Subprocess in Python

0 Answers0