Python 3 for Beginners: Python Functions - The Dry Concept

The video tutorial explains the concept of functions in Python, emphasizing the DRY principle. It covers how to define functions using the DEF keyword, the importance of calling functions, and the use of parameters. The tutorial also discusses optional parameters with default values, handling multiple parameters, and the use of named parameters. It highlights the importance of defining functions before calling them and demonstrates error handling when parameters are missing.

How can you make a parameter optional in a function?

Describe how positional parameters work in function definitions.

What is the difference between required and optional parameters in a function?