CODEWITHSUNDEEP
pythonsubprocesskill-process
Denis
Denis

Reputation: 49

Gently kill a process created with Python's subprocess.Popen() in Windows

I'm trying to run a python script that runs, with subprocess.popen (), one or more instances of another python script. At some point I need to finish them gently. These scripts execute a while loop and when ctrl-c is catched they execute a clean-up routine and terminate.

At the beginnig my idea was to send ctrl-c to those scripts with subproc.send_signal() but it doesn't work. I tryed to use subproc.terminate() or os.kill(os.kill(subproc.pid, signal.CTRL_C_EVENT)) and other solution founded on Internet but nothing works well.

How can I gently terminate my scripts? Is the way I run my scripts right? Here is my code:

processes = []
    for i in range(0, capsules_number):
        p = subprocess.Popen(["python.exe ", "Capsula.py ", str(i)])
        processes.append(p)

    input("Press any key to terminate programs")

    for p in processes:
        # Terminate process
        processes.remove(p)

Upvotes: 1

Views: 819

Answers (1)

Roland Smith
Roland Smith

Reputation: 43495

From the subprocess documentation:

CTRL_C_EVENT and CTRL_BREAK_EVENT can be sent to processes started with a creationflags parameter which includes CREATE_NEW_PROCESS_GROUP.

Upvotes: 1

Related Questions