Unexpected exit of Python script

[vicky]

Hello All,

I am a new Python user and don't know much about it.

I just want to know that, due to any reason if a script exits, is
their some way to release all the resources acquired by the script
during execution ?

Actually In my system I want to execute some piece of code at the time
of script exit (expected or unexpected) to ensure the release of all
the resources. I don't know how to do that :(

Can anyone please help me ?