Python is an interpreted high-level programming language for general-purpose programming.
Created by Guido van Rossum and first released in 1991, Python has a design philosophy that emphasizes code readability, and a syntax that allows programmers to express concepts in fewer lines of code, notably using significant whitespace. It provides constructs that enable clear programming on both small and large scales. Read more about Python on Wikipedia.
Python is the language that is most often used and advised to use to develop Artificial Intelligence applications.
Documentation and resources can be found to use and learn the language on the official Python website.
If you already have programming experience, you can quickly learn the synthax and specificities of Python in this video.