python is very powerful programming as well as scripting language. if you are interested in computer and network security then python is the best language for you.
i have found some video tutorial on "how to use python for information security" www.securitytube.net/video/1933 www.securitytube.net/video/1946
Why should it be "the best language"? I disagree. There are lots of fields in computer security that need other languages than Python. It depends where you want to go and what you want to do.