Restart python script from other script

Question

I already searched several solutions on this site, but unfortunately the provided ones didn't work out for me.

Let's say I have a python script called "DataGen.py" that stops running (green arrow is clickable) because some background program is crashing. Unfortunately, there is no exception being thrown, which is why I need a workaround:

What I'm searching for is another python script called "RestartScript.py" that restarts "DataGen.py" 60 seconds after it has stopped running.

I tried something like:

from os import system
from time import sleep

while True:
    system('DataGen.py')
    sleep(300)

This might help you to identify whether your script is currently running or not: stackoverflow.com/questions/788411/… — DocDriven
– DocDriven, Commented Feb 14, 2019 at 14:49
@AlexYu this seems to work. What does the sleep command do in this context? — Dorian IL
– Dorian IL, Commented Feb 14, 2019 at 14:52
It suspend execution of the calling thread for the given number of seconds — Alex Yu
– Alex Yu, Commented Feb 14, 2019 at 14:56

prismo · Accepted Answer · 2019-02-14 18:33:18Z

3

The system function executes what command you use as input.. See link. As such, this would be how you would run it to achieve the results you desire:

system('python DataGen.py')

Also, whatever value used as input in the sleep function is supposed to be seconds.. Using this logic, your code reruns every 300 seconds.

See below for full solution:

from os import system
from time import sleep

while True:
    system('python DataGen.py')
    sleep(60)

edited Feb 14, 2019 at 18:33

answered Feb 14, 2019 at 14:52

prismo

1,9193 gold badges21 silver badges43 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Right leg Over a year ago

It's a good start, but if you want to monitor DataGen.py from a master process, subprocess.call or the likes would probably be a better choice. Besides, there is no restart if crashed logic, which I would find much more interesting. I think a satisfying solution would be to pass DataGen.py's pid to a monitor function, that would regularly check if the process is still running, and restart it if it crashed. Maybe os.system('ps') then a lookup for this pid would be a good starter.

Dorian IL Over a year ago

@Rightleg This would also be better for my purposes. The link "DocDriven" posted under the question is what you're refering to I think.

Collectives™ on Stack Overflow

Restart python script from other script

1 Answer 1

2 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related