How to terminate process from Python using pid?

by

Using the awesome psutil library it’s pretty simple:

p = psutil.Process(pid)
p.terminate()  #or p.kill()

If you don’t want to install a new library, you can use the os module:

import os
import signal

os.kill(pid, signal.SIGTERM) #or signal.SIGKILL

See also the os.kill documentation.

If you are interested in starting the command python StripCore.py if it is not running, and killing it otherwise, you can use psutil to do this reliably.

Something like:

import psutil
from subprocess import Popen

for process in psutil.process_iter():
    if process.cmdline() == ['python', 'StripCore.py']:
        print('Process found. Terminating it.')
        process.terminate()
        break
else:
    print('Process not found: starting it.')
    Popen(['python', 'StripCore.py'])

Sample run:

$python test_strip.py   #test_strip.py contains the code above
Process not found: starting it.
$python test_strip.py 
Process found. Terminating it.
$python test_strip.py 
Process not found: starting it.
$killall python
$python test_strip.py 
Process not found: starting it.
$python test_strip.py 
Process found. Terminating it.
$python test_strip.py 
Process not found: starting it.

Note: In previous psutil versions cmdline was an attribute instead of a method.

More Related Contents:

  1. Sub-process in Python execute two task? [closed]
  2. How to get Linux console window width in Python
  3. kill process with python
  4. How to terminate a python subprocess launched with shell=True
  5. Execute Python script via crontab
  6. How do I print colored text to the terminal?
  7. Getting MAC Address
  8. Python pysftp get_r from Linux works fine on Linux but not on Windows
  9. Is there go up line character? (Opposite of \n)
  10. Add pygame module in PyCharm IDE
  11. fcntl substitute on Windows
  12. Python FTP get the most recent file by date
  13. Python: how to kill child process(es) when parent dies?
  14. Access Denied page with headless Chrome on Linux while headed Chrome works on windows using Selenium through Python
  15. Find size and free space of the filesystem containing a given file
  16. Linux command-line call not returning what it should from os.system?
  17. How to check if there exists a process with a given pid in Python?
  18. Simulate keystroke in Linux with Python
  19. Keep a subprocess alive and keep giving it commands? Python
  20. Calling a python script from command line without typing “python” first
  21. How to split a huge csv file based on content of first column?
  22. OSError 38 [Errno 38] with multiprocessing
  23. How do I detect whether sys.stdout is attached to terminal or not? [duplicate]
  24. Tkinter.PhotoImage doesn’t not support png image
  25. How can I send a signal from a python program?
  26. How to make python window run as “Always On Top”?
  27. Get local network interface addresses using only proc?
  28. Environment Variables when script run by cron
  29. Run a process and kill it if it doesn’t end within one hour
  30. How to install and import Python modules at runtime

Leave a Comment