Question

I have an old python script that includes print commands. Sometimes I need to run this script in the background with no terminal associated (I think). Sometimes the script crashes. Could this be the reason? What would a solution be?

I described this badly. Here is what happens:
I run the script with & at the end from a terminal window. It works fine. I then close the window. It crashes.

Answer 1

The script does not crash but is terminated by the closing terminal.

You need to start the script using the nohup command:

$ nohup ./myscript.py &

Even better (if you want to catch the output to stdout):

$ nohup ./myscript.py > myscript.log &