It's time to start learning Python. I included this section in the book for two reasons. The first is that I want you to use it as a reference for when you develop your Python scripts in the future. The second reason is that I want to refresh your memory about this amazing programming language. It is important to note that I can't fit all the information about this programming language in an appendix, so I will include the most important elements of Python that will help you to achieve the most results in your career. You can enjoy learning and experimenting with the following examples using your Terminal window's Python interpreter—just type Python in your terminal window and you're ready to go.