Functions

In programming, a function is a reusable block of code that executes a certain functionality when it is called. Functions are integral parts of every programming language because they help make your code more modular and reusable.

In Python, you define a function with the def keyword, then write the function identifier (name) followed by parentheses and a colon.

Visit the following resources to learn more:

• Python Functions – How to Define and Call a Function
• Python Functions - W3Schools
• Python Functions
• Built-in Functions in Python