Lisp Vs. Python

I am looking to learn another programming language, I am a bit of a newbie but I know C, Java, and C++ rather well and am looking to expand.

I am interested in AI so I am considering Lisp.
But I also hear python is on the rise so I am considering that.

Which should I choose and why?

>>5
You have no idea what you're getting yourself into. Lisp is not a programming language, it's an idea. Lisp is the idea that a computer program is a list of symbols. Superficially, that may just sound like another description of a representation of a computer program, but really, it is the only way of representing a computer program.  Program quoting is a primitive feature, because code and data are all one fluid format.

A program is just a list, and the first element is a function.

With Lisp, anything is possible.