Python interpreter waits for child process to die

Question

Contents of check.py:

from multiprocessing import Process
import time
import sys

def slp():
 time.sleep(30)
 f=open("yeah.txt","w")
 f.close()

if __name__=="__main__" :
 x=Process(target=slp)
 x.start()
 sys.exit()

In windows 7, from cmd, if I call python check.py, it doesn't immediately exit, but instead waits for 30 seconds. And if I kill cmd, the child dies too- no "yeah.txt" is created.

How do I make ensure the child continues to run even if parent is killed and also that the parent doesn't wait for child process to end?

score 1 · Answer 1 · edited May 23 '17 at 12:13

1

What you seem to want is running your script as a background process. The solution in How to start a background process in Python? should do, you will have to specify some command line parameter that tell your script to go into slp rather than spawning a new process.

edited May 23 '17 at 12:13

Community

1
1

answered Jun 23 '11 at 23:38

Wladimir Palant

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score 0 · Accepted Answer · answered Jun 24 '11 at 00:03

0

have a look at subprocess module instead.

answered Jun 24 '11 at 00:03

Corey Goldberg

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Python interpreter waits for child process to die

2 Answers2