You’re already familiar with the print(), input(), and len() functions from the previous chapters. Python provides several built-in functions like these, but you can also write your own functions. A function is like a miniprogram within a program.
To better understand how functions work, let’s create one. Enter this program into the file editor and save it as helloFunc.py:
➊ def hello(): ➋ print('Howdy!') print('Howdy!!!') print('Hello there.') ➌ hello() hello() hello()
You can view the execution of this program at https://autbor.com/hellofunc/. The first line is a def statement ➊, which defines a function named ...