On 3 fév, 21:52, Gilles Ganault <[EMAIL PROTECTED]> wrote:
> Hello
>
> I need to launch a Python script, and fork it so that the calling
> script can resume with the next step will the Python script keeps
> running.
>
> I tried those two, but they don't work, as the calling script is stuck
> until the Python script ends:
>
> sys.stdout = open(os.devnull, 'w')
>
> =====
> #if os.fork():
> pid = os.fork()
> if pid > 0:
> sys.exit(0)
> =====
>
> Should I use another library to do this?
>
> Thank you.
this works out for me:
def tryToFork(cbk, fork=True):
'''
If possible, start the process as a daemon under linux
otherwise start it normally under Windows
the 'fork' flag may deactivate the forking if it is set to False
'''
#UNIX/LINUX: FORK
if fork:
try:
#Fork and commit suicide
if os.fork():
sys.exit(0)
#What to do in parent process
else:
os.setsid()
sys.stdin = open('/dev/null')
sys.stdout = open('/dev/null', 'w')
sys.stderr = open('/dev/null', 'w')
cbk()
#WINDOWS: JUST RUN
except AttributeError:
cbk()
#PLAIN, NORMAL RUN
else:
cbk()
def whateverFunctionToFork():
pass
tryToFork(whateverFunctionToFork, True)
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