Killing threads, and os.system()

[Laurent Claessens]

     Hello all


   I've a program that launches a lot of  threads and each of them 
launches a os.system("my_command").

My program also keeps a list of the launched threads, so I can make 
"for" loops on the threads.


My aim is to kill everything with ctrl-C (KeyboardInterrupt).

Of course I tried to do

try:
    [...]
except KeyboardInterrupt :
    for task in task_list :
       task.stop()
       #task_list is the list of threads to be killed


It does not work.

How can I produce an "emergency" stop of all processes, including the 
externals programs that were called by os.system() ?

My aim is of course to write an ultimate log file containing the status 
of the program when KeyboardInterupt was raised. (if not, the unix 
command "kill" does the job ;) )


Thanks for any help
have a good day
Laurent