One of the cool things about being a carpenter is that you can make your own shelves and dog houses. One of the cool things about being a computer programmer is that you can make your own computer apps!
In an era when computers are so much a part of life, that’s a useful skill. And the nice thing about doing it yourself is that things turn out exactly as you want them. You can make things that are perfect just for you.
Case in point: using Python to create custom charts of baseball stats!