Execute code after death of all child processes - (corrected posting)
Markus Franz
mf1987 at arcor.de
Sat Dec 25 04:56:27 EST 2004
Hallo!
I have a problem with this little script written in Python:
import sys, os, time
texts = ['this is text1', 'this is text 2']
for current_text in env_sources[0:]:
pid = os.fork()
if pid == 0:
time.sleep(2)
print current_text
break
As you is create some child processes depending on the number of vars
in ?texts?. My problem is: How can I run some code after all child
processes have been finished? (The code should be run only in the
parent process.)
I tried:
import sys, os, time
texts = ['this is text1', 'this is text 2']
for current_text in texts[0:]:
pid = os.fork()
if pid == 0:
time.sleep(2)
print current_text
break
os.waitpid(-1, 0)
print 'this is the end'
But this didn't work, 'this is the end' will be showed several times.
Can you help me?
Tanks.
Markus
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