How a script can know if it has been called with the -i command line option?

[commander.coder at hotmail.com]

Michele Simionato wrote:
> The subject says it all, I would like a script to act differently when
> called as
> $ python script.py and when called as $ python -i script.py. I looked
> at the sys module
> but I don't see a way to retrieve the command line flags, where should
> I look?
In the optparse module.

Jim