PyTorch and tensorflow are the AI libraries for python, learn python first, "learn python the hard way" is a nice intro, then once you've got the idea of how to use the basic syntax of python go to a python forum or a tensorflow/pytorch forum and ask them about good resources for starting with AI. The benefits, I personally would suggest aren't all that huge, there's a lot of hype around AI but for most situations a manually coded system of rules does betetr than trusting a machine to learn things for itself. Image and other pattern recognition problems are perhaps the main places where AI has a possible advantage over normal programs.